Reference 2026-08-19 21:01 UTC to 2026-08-20 23:59 UTC

2190 2190 

2191 - `background: optional "transparent" or "opaque" or "auto"`2191 - `background: optional "transparent" or "opaque" or "auto"`

2192 2192 

2193 Background type for the generated image. One of `transparent`,2193 Set the background of the generated image. One of `transparent`,

2194 `opaque`, or `auto`. Default: `auto`.2194 `opaque`, or `auto`. Transparent backgrounds are available for

2195 supported GPT Image models. For `gpt-image-2` and

2196 `gpt-image-2-2026-04-21`, this support is in preview. When using

2197 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

2195 2198 

2196 - `"transparent"`2199 - `"transparent"`

2197 2200 

2220 2223 

2221 Base64-encoded mask image.2224 Base64-encoded mask image.

2222 2225 

2223 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2226 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2224 2227 

2225 The image generation model to use. Default: `gpt-image-1`.2228 The image generation model to use. One of `gpt-image-1`,

2229 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2230 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2231 `gpt-image-1`.

2226 2232 

2227 - `string`2233 - `string`

2228 2234 

2229 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2235 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2230 2236 

2231 The image generation model to use. Default: `gpt-image-1`.2237 The image generation model to use. One of `gpt-image-1`,

2238 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2239 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2240 `gpt-image-1`.

2232 2241 

2233 - `"gpt-image-1"`2242 - `"gpt-image-1"`

2234 2243 

2236 2245 

2237 - `"gpt-image-1.5"`2246 - `"gpt-image-1.5"`

2238 2247 

2248 - `"gpt-image-2"`

2249 

2250 - `"gpt-image-2-2026-04-21"`

2251 

2239 - `moderation: optional "auto" or "low"`2252 - `moderation: optional "auto" or "low"`

2240 2253 

2241 Moderation level for the generated image. Default: `auto`.2254 Moderation level for the generated image. Default: `auto`.

3353 3366 

3354 - `background: optional "transparent" or "opaque" or "auto"`3367 - `background: optional "transparent" or "opaque" or "auto"`

3355 3368 

3356 Background type for the generated image. One of `transparent`,3369 Set the background of the generated image. One of `transparent`,

3357 `opaque`, or `auto`. Default: `auto`.3370 `opaque`, or `auto`. Transparent backgrounds are available for

3371 supported GPT Image models. For `gpt-image-2` and

3372 `gpt-image-2-2026-04-21`, this support is in preview. When using

3373 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

3358 3374 

3359 - `"transparent"`3375 - `"transparent"`

3360 3376 

3383 3399 

3384 Base64-encoded mask image.3400 Base64-encoded mask image.

3385 3401 

3386 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3402 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3387 3403 

3388 The image generation model to use. Default: `gpt-image-1`.3404 The image generation model to use. One of `gpt-image-1`,

3405 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3406 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3407 `gpt-image-1`.

3389 3408 

3390 - `string`3409 - `string`

3391 3410 

3392 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3411 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3393 3412 

3394 The image generation model to use. Default: `gpt-image-1`.3413 The image generation model to use. One of `gpt-image-1`,

3414 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3415 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3416 `gpt-image-1`.

3395 3417 

3396 - `"gpt-image-1"`3418 - `"gpt-image-1"`

3397 3419 

3399 3421 

3400 - `"gpt-image-1.5"`3422 - `"gpt-image-1.5"`

3401 3423 

3424 - `"gpt-image-2"`

3425 

3426 - `"gpt-image-2-2026-04-21"`

3427 

3402 - `moderation: optional "auto" or "low"`3428 - `moderation: optional "auto" or "low"`

3403 3429 

3404 Moderation level for the generated image. Default: `auto`.3430 Moderation level for the generated image. Default: `auto`.

6678 6704 

6679 - `background: optional "transparent" or "opaque" or "auto"`6705 - `background: optional "transparent" or "opaque" or "auto"`

6680 6706 

6681 Background type for the generated image. One of `transparent`,6707 Set the background of the generated image. One of `transparent`,

6682 `opaque`, or `auto`. Default: `auto`.6708 `opaque`, or `auto`. Transparent backgrounds are available for

6709 supported GPT Image models. For `gpt-image-2` and

6710 `gpt-image-2-2026-04-21`, this support is in preview. When using

6711 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

6683 6712 

6684 - `"transparent"`6713 - `"transparent"`

6685 6714 

6708 6737 

6709 Base64-encoded mask image.6738 Base64-encoded mask image.

6710 6739 

6711 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`6740 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

6712 6741 

6713 The image generation model to use. Default: `gpt-image-1`.6742 The image generation model to use. One of `gpt-image-1`,

6743 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

6744 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

6745 `gpt-image-1`.

6714 6746 

6715 - `string`6747 - `string`

6716 6748 

6717 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`6749 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

6718 6750 

6719 The image generation model to use. Default: `gpt-image-1`.6751 The image generation model to use. One of `gpt-image-1`,

6752 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

6753 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

6754 `gpt-image-1`.

6720 6755 

6721 - `"gpt-image-1"`6756 - `"gpt-image-1"`

6722 6757 

6724 6759 

6725 - `"gpt-image-1.5"`6760 - `"gpt-image-1.5"`

6726 6761 

6762 - `"gpt-image-2"`

6763 

6764 - `"gpt-image-2-2026-04-21"`

6765 

6727 - `moderation: optional "auto" or "low"`6766 - `moderation: optional "auto" or "low"`

6728 6767 

6729 Moderation level for the generated image. Default: `auto`.6768 Moderation level for the generated image. Default: `auto`.

7719 7758 

7720 - `background: optional "transparent" or "opaque" or "auto"`7759 - `background: optional "transparent" or "opaque" or "auto"`

7721 7760 

7722 Background type for the generated image. One of `transparent`,7761 Set the background of the generated image. One of `transparent`,

7723 `opaque`, or `auto`. Default: `auto`.7762 `opaque`, or `auto`. Transparent backgrounds are available for

7763 supported GPT Image models. For `gpt-image-2` and

7764 `gpt-image-2-2026-04-21`, this support is in preview. When using

7765 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

7724 7766 

7725 - `"transparent"`7767 - `"transparent"`

7726 7768 

7749 7791 

7750 Base64-encoded mask image.7792 Base64-encoded mask image.

7751 7793 

7752 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`7794 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

7753 7795 

7754 The image generation model to use. Default: `gpt-image-1`.7796 The image generation model to use. One of `gpt-image-1`,

7797 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

7798 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

7799 `gpt-image-1`.

7755 7800 

7756 - `string`7801 - `string`

7757 7802 

7758 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`7803 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

7759 7804 

7760 The image generation model to use. Default: `gpt-image-1`.7805 The image generation model to use. One of `gpt-image-1`,

7806 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

7807 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

7808 `gpt-image-1`.

7761 7809 

7762 - `"gpt-image-1"`7810 - `"gpt-image-1"`

7763 7811 

7765 7813 

7766 - `"gpt-image-1.5"`7814 - `"gpt-image-1.5"`

7767 7815 

7816 - `"gpt-image-2"`

7817 

7818 - `"gpt-image-2-2026-04-21"`

7819 

7768 - `moderation: optional "auto" or "low"`7820 - `moderation: optional "auto" or "low"`

7769 7821 

7770 Moderation level for the generated image. Default: `auto`.7822 Moderation level for the generated image. Default: `auto`.

9879 9931 

9880 - `background: optional "transparent" or "opaque" or "auto"`9932 - `background: optional "transparent" or "opaque" or "auto"`

9881 9933 

9882 Background type for the generated image. One of `transparent`,9934 Set the background of the generated image. One of `transparent`,

9883 `opaque`, or `auto`. Default: `auto`.9935 `opaque`, or `auto`. Transparent backgrounds are available for

9936 supported GPT Image models. For `gpt-image-2` and

9937 `gpt-image-2-2026-04-21`, this support is in preview. When using

9938 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

9884 9939 

9885 - `"transparent"`9940 - `"transparent"`

9886 9941 

9909 9964 

9910 Base64-encoded mask image.9965 Base64-encoded mask image.

9911 9966 

9912 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`9967 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

9913 9968 

9914 The image generation model to use. Default: `gpt-image-1`.9969 The image generation model to use. One of `gpt-image-1`,

9970 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

9971 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

9972 `gpt-image-1`.

9915 9973 

9916 - `string`9974 - `string`

9917 9975 

9918 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`9976 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

9919 9977 

9920 The image generation model to use. Default: `gpt-image-1`.9978 The image generation model to use. One of `gpt-image-1`,

9979 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

9980 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

9981 `gpt-image-1`.

9921 9982 

9922 - `"gpt-image-1"`9983 - `"gpt-image-1"`

9923 9984 

9925 9986 

9926 - `"gpt-image-1.5"`9987 - `"gpt-image-1.5"`

9927 9988 

9989 - `"gpt-image-2"`

9990 

9991 - `"gpt-image-2-2026-04-21"`

9992 

9928 - `moderation: optional "auto" or "low"`9993 - `moderation: optional "auto" or "low"`

9929 9994 

9930 Moderation level for the generated image. Default: `auto`.9995 Moderation level for the generated image. Default: `auto`.

2320 2320 

2321 - `background: optional "transparent" or "opaque" or "auto"`2321 - `background: optional "transparent" or "opaque" or "auto"`

2322 2322 

2323 Background type for the generated image. One of `transparent`,2323 Set the background of the generated image. One of `transparent`,

2324 `opaque`, or `auto`. Default: `auto`.2324 `opaque`, or `auto`. Transparent backgrounds are available for

2325 supported GPT Image models. For `gpt-image-2` and

2326 `gpt-image-2-2026-04-21`, this support is in preview. When using

2327 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

2325 2328 

2326 - `"transparent"`2329 - `"transparent"`

2327 2330 

2350 2353 

2351 Base64-encoded mask image.2354 Base64-encoded mask image.

2352 2355 

2353 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2356 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2354 2357 

2355 The image generation model to use. Default: `gpt-image-1`.2358 The image generation model to use. One of `gpt-image-1`,

2359 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2360 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2361 `gpt-image-1`.

2356 2362 

2357 - `string`2363 - `string`

2358 2364 

2359 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2365 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2360 2366 

2361 The image generation model to use. Default: `gpt-image-1`.2367 The image generation model to use. One of `gpt-image-1`,

2368 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2369 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2370 `gpt-image-1`.

2362 2371 

2363 - `"gpt-image-1"`2372 - `"gpt-image-1"`

2364 2373 

2366 2375 

2367 - `"gpt-image-1.5"`2376 - `"gpt-image-1.5"`

2368 2377 

2378 - `"gpt-image-2"`

2379 

2380 - `"gpt-image-2-2026-04-21"`

2381 

2369 - `moderation: optional "auto" or "low"`2382 - `moderation: optional "auto" or "low"`

2370 2383 

2371 Moderation level for the generated image. Default: `auto`.2384 Moderation level for the generated image. Default: `auto`.

3483 3496 

3484 - `background: optional "transparent" or "opaque" or "auto"`3497 - `background: optional "transparent" or "opaque" or "auto"`

3485 3498 

3486 Background type for the generated image. One of `transparent`,3499 Set the background of the generated image. One of `transparent`,

3487 `opaque`, or `auto`. Default: `auto`.3500 `opaque`, or `auto`. Transparent backgrounds are available for

3501 supported GPT Image models. For `gpt-image-2` and

3502 `gpt-image-2-2026-04-21`, this support is in preview. When using

3503 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

3488 3504 

3489 - `"transparent"`3505 - `"transparent"`

3490 3506 

3513 3529 

3514 Base64-encoded mask image.3530 Base64-encoded mask image.

3515 3531 

3516 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3532 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3517 3533 

3518 The image generation model to use. Default: `gpt-image-1`.3534 The image generation model to use. One of `gpt-image-1`,

3535 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3536 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3537 `gpt-image-1`.

3519 3538 

3520 - `string`3539 - `string`

3521 3540 

3522 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3541 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3523 3542 

3524 The image generation model to use. Default: `gpt-image-1`.3543 The image generation model to use. One of `gpt-image-1`,

3544 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3545 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3546 `gpt-image-1`.

3525 3547 

3526 - `"gpt-image-1"`3548 - `"gpt-image-1"`

3527 3549 

3529 3551 

3530 - `"gpt-image-1.5"`3552 - `"gpt-image-1.5"`

3531 3553 

3554 - `"gpt-image-2"`

3555 

3556 - `"gpt-image-2-2026-04-21"`

3557 

3532 - `moderation: optional "auto" or "low"`3558 - `moderation: optional "auto" or "low"`

3533 3559 

3534 Moderation level for the generated image. Default: `auto`.3560 Moderation level for the generated image. Default: `auto`.

6455 6481 

6456 - `background: optional "transparent" or "opaque" or "auto"`6482 - `background: optional "transparent" or "opaque" or "auto"`

6457 6483 

6458 Background type for the generated image. One of `transparent`,6484 Set the background of the generated image. One of `transparent`,

6459 `opaque`, or `auto`. Default: `auto`.6485 `opaque`, or `auto`. Transparent backgrounds are available for

6486 supported GPT Image models. For `gpt-image-2` and

6487 `gpt-image-2-2026-04-21`, this support is in preview. When using

6488 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

6460 6489 

6461 - `"transparent"`6490 - `"transparent"`

6462 6491 

6485 6514 

6486 Base64-encoded mask image.6515 Base64-encoded mask image.

6487 6516 

6488 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`6517 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

6489 6518 

6490 The image generation model to use. Default: `gpt-image-1`.6519 The image generation model to use. One of `gpt-image-1`,

6520 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

6521 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

6522 `gpt-image-1`.

6491 6523 

6492 - `string`6524 - `string`

6493 6525 

6494 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`6526 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

6495 6527 

6496 The image generation model to use. Default: `gpt-image-1`.6528 The image generation model to use. One of `gpt-image-1`,

6529 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

6530 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

6531 `gpt-image-1`.

6497 6532 

6498 - `"gpt-image-1"`6533 - `"gpt-image-1"`

6499 6534 

6501 6536 

6502 - `"gpt-image-1.5"`6537 - `"gpt-image-1.5"`

6503 6538 

6539 - `"gpt-image-2"`

6540 

6541 - `"gpt-image-2-2026-04-21"`

6542 

6504 - `moderation: optional "auto" or "low"`6543 - `moderation: optional "auto" or "low"`

6505 6544 

6506 Moderation level for the generated image. Default: `auto`.6545 Moderation level for the generated image. Default: `auto`.

7614 7653 

7615 - `background: optional "transparent" or "opaque" or "auto"`7654 - `background: optional "transparent" or "opaque" or "auto"`

7616 7655 

7617 Background type for the generated image. One of `transparent`,7656 Set the background of the generated image. One of `transparent`,

7618 `opaque`, or `auto`. Default: `auto`.7657 `opaque`, or `auto`. Transparent backgrounds are available for

7658 supported GPT Image models. For `gpt-image-2` and

7659 `gpt-image-2-2026-04-21`, this support is in preview. When using

7660 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

7619 7661 

7620 - `"transparent"`7662 - `"transparent"`

7621 7663 

7644 7686 

7645 Base64-encoded mask image.7687 Base64-encoded mask image.

7646 7688 

7647 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`7689 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

7648 7690 

7649 The image generation model to use. Default: `gpt-image-1`.7691 The image generation model to use. One of `gpt-image-1`,

7692 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

7693 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

7694 `gpt-image-1`.

7650 7695 

7651 - `string`7696 - `string`

7652 7697 

7653 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`7698 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

7654 7699 

7655 The image generation model to use. Default: `gpt-image-1`.7700 The image generation model to use. One of `gpt-image-1`,

7701 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

7702 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

7703 `gpt-image-1`.

7656 7704 

7657 - `"gpt-image-1"`7705 - `"gpt-image-1"`

7658 7706 

7660 7708 

7661 - `"gpt-image-1.5"`7709 - `"gpt-image-1.5"`

7662 7710 

7711 - `"gpt-image-2"`

7712 

7713 - `"gpt-image-2-2026-04-21"`

7714 

7663 - `moderation: optional "auto" or "low"`7715 - `moderation: optional "auto" or "low"`

7664 7716 

7665 Moderation level for the generated image. Default: `auto`.7717 Moderation level for the generated image. Default: `auto`.

2182 2182 

2183 - `background: optional "transparent" or "opaque" or "auto"`2183 - `background: optional "transparent" or "opaque" or "auto"`

2184 2184 

2185 Background type for the generated image. One of `transparent`,2185 Set the background of the generated image. One of `transparent`,

2186 `opaque`, or `auto`. Default: `auto`.2186 `opaque`, or `auto`. Transparent backgrounds are available for

2187 supported GPT Image models. For `gpt-image-2` and

2188 `gpt-image-2-2026-04-21`, this support is in preview. When using

2189 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

2187 2190 

2188 - `"transparent"`2191 - `"transparent"`

2189 2192 

2212 2215 

2213 Base64-encoded mask image.2216 Base64-encoded mask image.

2214 2217 

2215 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2218 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2216 2219 

2217 The image generation model to use. Default: `gpt-image-1`.2220 The image generation model to use. One of `gpt-image-1`,

2221 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2222 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2223 `gpt-image-1`.

2218 2224 

2219 - `string`2225 - `string`

2220 2226 

2221 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2227 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2222 2228 

2223 The image generation model to use. Default: `gpt-image-1`.2229 The image generation model to use. One of `gpt-image-1`,

2230 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2231 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2232 `gpt-image-1`.

2224 2233 

2225 - `"gpt-image-1"`2234 - `"gpt-image-1"`

2226 2235 

2228 2237 

2229 - `"gpt-image-1.5"`2238 - `"gpt-image-1.5"`

2230 2239 

2240 - `"gpt-image-2"`

2241 

2242 - `"gpt-image-2-2026-04-21"`

2243 

2231 - `moderation: optional "auto" or "low"`2244 - `moderation: optional "auto" or "low"`

2232 2245 

2233 Moderation level for the generated image. Default: `auto`.2246 Moderation level for the generated image. Default: `auto`.

3345 3358 

3346 - `background: optional "transparent" or "opaque" or "auto"`3359 - `background: optional "transparent" or "opaque" or "auto"`

3347 3360 

3348 Background type for the generated image. One of `transparent`,3361 Set the background of the generated image. One of `transparent`,

3349 `opaque`, or `auto`. Default: `auto`.3362 `opaque`, or `auto`. Transparent backgrounds are available for

3363 supported GPT Image models. For `gpt-image-2` and

3364 `gpt-image-2-2026-04-21`, this support is in preview. When using

3365 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

3350 3366 

3351 - `"transparent"`3367 - `"transparent"`

3352 3368 

3375 3391 

3376 Base64-encoded mask image.3392 Base64-encoded mask image.

3377 3393 

3378 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3394 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3379 3395 

3380 The image generation model to use. Default: `gpt-image-1`.3396 The image generation model to use. One of `gpt-image-1`,

3397 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3398 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3399 `gpt-image-1`.

3381 3400 

3382 - `string`3401 - `string`

3383 3402 

3384 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3403 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3385 3404 

3386 The image generation model to use. Default: `gpt-image-1`.3405 The image generation model to use. One of `gpt-image-1`,

3406 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3407 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3408 `gpt-image-1`.

3387 3409 

3388 - `"gpt-image-1"`3410 - `"gpt-image-1"`

3389 3411 

3391 3413 

3392 - `"gpt-image-1.5"`3414 - `"gpt-image-1.5"`

3393 3415 

3416 - `"gpt-image-2"`

3417 

3418 - `"gpt-image-2-2026-04-21"`

3419 

3394 - `moderation: optional "auto" or "low"`3420 - `moderation: optional "auto" or "low"`

3395 3421 

3396 Moderation level for the generated image. Default: `auto`.3422 Moderation level for the generated image. Default: `auto`.

6299 6325 

6300 - `background: optional "transparent" or "opaque" or "auto"`6326 - `background: optional "transparent" or "opaque" or "auto"`

6301 6327 

6302 Background type for the generated image. One of `transparent`,6328 Set the background of the generated image. One of `transparent`,

6303 `opaque`, or `auto`. Default: `auto`.6329 `opaque`, or `auto`. Transparent backgrounds are available for

6330 supported GPT Image models. For `gpt-image-2` and

6331 `gpt-image-2-2026-04-21`, this support is in preview. When using

6332 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

6304 6333 

6305 - `"transparent"`6334 - `"transparent"`

6306 6335 

6329 6358 

6330 Base64-encoded mask image.6359 Base64-encoded mask image.

6331 6360 

6332 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`6361 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

6333 6362 

6334 The image generation model to use. Default: `gpt-image-1`.6363 The image generation model to use. One of `gpt-image-1`,

6364 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

6365 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

6366 `gpt-image-1`.

6335 6367 

6336 - `string`6368 - `string`

6337 6369 

6338 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`6370 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

6339 6371 

6340 The image generation model to use. Default: `gpt-image-1`.6372 The image generation model to use. One of `gpt-image-1`,

6373 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

6374 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

6375 `gpt-image-1`.

6341 6376 

6342 - `"gpt-image-1"`6377 - `"gpt-image-1"`

6343 6378 

6345 6380 

6346 - `"gpt-image-1.5"`6381 - `"gpt-image-1.5"`

6347 6382 

6383 - `"gpt-image-2"`

6384 

6385 - `"gpt-image-2-2026-04-21"`

6386 

6348 - `moderation: optional "auto" or "low"`6387 - `moderation: optional "auto" or "low"`

6349 6388 

6350 Moderation level for the generated image. Default: `auto`.6389 Moderation level for the generated image. Default: `auto`.

8933 8972 

8934 - `background: optional "transparent" or "opaque" or "auto"`8973 - `background: optional "transparent" or "opaque" or "auto"`

8935 8974 

8936 Background type for the generated image. One of `transparent`,8975 Set the background of the generated image. One of `transparent`,

8937 `opaque`, or `auto`. Default: `auto`.8976 `opaque`, or `auto`. Transparent backgrounds are available for

8977 supported GPT Image models. For `gpt-image-2` and

8978 `gpt-image-2-2026-04-21`, this support is in preview. When using

8979 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

8938 8980 

8939 - `"transparent"`8981 - `"transparent"`

8940 8982 

8963 9005 

8964 Base64-encoded mask image.9006 Base64-encoded mask image.

8965 9007 

8966 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`9008 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

8967 9009 

8968 The image generation model to use. Default: `gpt-image-1`.9010 The image generation model to use. One of `gpt-image-1`,

9011 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

9012 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

9013 `gpt-image-1`.

8969 9014 

8970 - `string`9015 - `string`

8971 9016 

8972 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`9017 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

8973 9018 

8974 The image generation model to use. Default: `gpt-image-1`.9019 The image generation model to use. One of `gpt-image-1`,

9020 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

9021 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

9022 `gpt-image-1`.

8975 9023 

8976 - `"gpt-image-1"`9024 - `"gpt-image-1"`

8977 9025 

8979 9027 

8980 - `"gpt-image-1.5"`9028 - `"gpt-image-1.5"`

8981 9029 

9030 - `"gpt-image-2"`

9031 

9032 - `"gpt-image-2-2026-04-21"`

9033 

8982 - `moderation: optional "auto" or "low"`9034 - `moderation: optional "auto" or "low"`

8983 9035 

8984 Moderation level for the generated image. Default: `auto`.9036 Moderation level for the generated image. Default: `auto`.

10096 10148 

10097 - `background: optional "transparent" or "opaque" or "auto"`10149 - `background: optional "transparent" or "opaque" or "auto"`

10098 10150 

10099 Background type for the generated image. One of `transparent`,10151 Set the background of the generated image. One of `transparent`,

10100 `opaque`, or `auto`. Default: `auto`.10152 `opaque`, or `auto`. Transparent backgrounds are available for

10153 supported GPT Image models. For `gpt-image-2` and

10154 `gpt-image-2-2026-04-21`, this support is in preview. When using

10155 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

10101 10156 

10102 - `"transparent"`10157 - `"transparent"`

10103 10158 

10126 10181 

10127 Base64-encoded mask image.10182 Base64-encoded mask image.

10128 10183 

10129 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`10184 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

10130 10185 

10131 The image generation model to use. Default: `gpt-image-1`.10186 The image generation model to use. One of `gpt-image-1`,

10187 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

10188 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

10189 `gpt-image-1`.

10132 10190 

10133 - `string`10191 - `string`

10134 10192 

10135 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`10193 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

10136 10194 

10137 The image generation model to use. Default: `gpt-image-1`.10195 The image generation model to use. One of `gpt-image-1`,

10196 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

10197 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

10198 `gpt-image-1`.

10138 10199 

10139 - `"gpt-image-1"`10200 - `"gpt-image-1"`

10140 10201 

10142 10203 

10143 - `"gpt-image-1.5"`10204 - `"gpt-image-1.5"`

10144 10205 

10206 - `"gpt-image-2"`

10207 

10208 - `"gpt-image-2-2026-04-21"`

10209 

10145 - `moderation: optional "auto" or "low"`10210 - `moderation: optional "auto" or "low"`

10146 10211 

10147 Moderation level for the generated image. Default: `auto`.10212 Moderation level for the generated image. Default: `auto`.

13421 13486 

13422 - `background: optional "transparent" or "opaque" or "auto"`13487 - `background: optional "transparent" or "opaque" or "auto"`

13423 13488 

13424 Background type for the generated image. One of `transparent`,13489 Set the background of the generated image. One of `transparent`,

13425 `opaque`, or `auto`. Default: `auto`.13490 `opaque`, or `auto`. Transparent backgrounds are available for

13491 supported GPT Image models. For `gpt-image-2` and

13492 `gpt-image-2-2026-04-21`, this support is in preview. When using

13493 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

13426 13494 

13427 - `"transparent"`13495 - `"transparent"`

13428 13496 

13451 13519 

13452 Base64-encoded mask image.13520 Base64-encoded mask image.

13453 13521 

13454 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`13522 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

13455 13523 

13456 The image generation model to use. Default: `gpt-image-1`.13524 The image generation model to use. One of `gpt-image-1`,

13525 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

13526 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

13527 `gpt-image-1`.

13457 13528 

13458 - `string`13529 - `string`

13459 13530 

13460 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`13531 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

13461 13532 

13462 The image generation model to use. Default: `gpt-image-1`.13533 The image generation model to use. One of `gpt-image-1`,

13534 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

13535 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

13536 `gpt-image-1`.

13463 13537 

13464 - `"gpt-image-1"`13538 - `"gpt-image-1"`

13465 13539 

13467 13541 

13468 - `"gpt-image-1.5"`13542 - `"gpt-image-1.5"`

13469 13543 

13544 - `"gpt-image-2"`

13545 

13546 - `"gpt-image-2-2026-04-21"`

13547 

13470 - `moderation: optional "auto" or "low"`13548 - `moderation: optional "auto" or "low"`

13471 13549 

13472 Moderation level for the generated image. Default: `auto`.13550 Moderation level for the generated image. Default: `auto`.

14462 14540 

14463 - `background: optional "transparent" or "opaque" or "auto"`14541 - `background: optional "transparent" or "opaque" or "auto"`

14464 14542 

14465 Background type for the generated image. One of `transparent`,14543 Set the background of the generated image. One of `transparent`,

14466 `opaque`, or `auto`. Default: `auto`.14544 `opaque`, or `auto`. Transparent backgrounds are available for

14545 supported GPT Image models. For `gpt-image-2` and

14546 `gpt-image-2-2026-04-21`, this support is in preview. When using

14547 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

14467 14548 

14468 - `"transparent"`14549 - `"transparent"`

14469 14550 

14492 14573 

14493 Base64-encoded mask image.14574 Base64-encoded mask image.

14494 14575 

14495 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`14576 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

14496 14577 

14497 The image generation model to use. Default: `gpt-image-1`.14578 The image generation model to use. One of `gpt-image-1`,

14579 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

14580 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

14581 `gpt-image-1`.

14498 14582 

14499 - `string`14583 - `string`

14500 14584 

14501 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`14585 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

14502 14586 

14503 The image generation model to use. Default: `gpt-image-1`.14587 The image generation model to use. One of `gpt-image-1`,

14588 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

14589 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

14590 `gpt-image-1`.

14504 14591 

14505 - `"gpt-image-1"`14592 - `"gpt-image-1"`

14506 14593 

14508 14595 

14509 - `"gpt-image-1.5"`14596 - `"gpt-image-1.5"`

14510 14597 

14598 - `"gpt-image-2"`

14599 

14600 - `"gpt-image-2-2026-04-21"`

14601 

14511 - `moderation: optional "auto" or "low"`14602 - `moderation: optional "auto" or "low"`

14512 14603 

14513 Moderation level for the generated image. Default: `auto`.14604 Moderation level for the generated image. Default: `auto`.

16622 16713 

16623 - `background: optional "transparent" or "opaque" or "auto"`16714 - `background: optional "transparent" or "opaque" or "auto"`

16624 16715 

16625 Background type for the generated image. One of `transparent`,16716 Set the background of the generated image. One of `transparent`,

16626 `opaque`, or `auto`. Default: `auto`.16717 `opaque`, or `auto`. Transparent backgrounds are available for

16718 supported GPT Image models. For `gpt-image-2` and

16719 `gpt-image-2-2026-04-21`, this support is in preview. When using

16720 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

16627 16721 

16628 - `"transparent"`16722 - `"transparent"`

16629 16723 

16652 16746 

16653 Base64-encoded mask image.16747 Base64-encoded mask image.

16654 16748 

16655 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`16749 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

16656 16750 

16657 The image generation model to use. Default: `gpt-image-1`.16751 The image generation model to use. One of `gpt-image-1`,

16752 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

16753 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

16754 `gpt-image-1`.

16658 16755 

16659 - `string`16756 - `string`

16660 16757 

16661 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`16758 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

16662 16759 

16663 The image generation model to use. Default: `gpt-image-1`.16760 The image generation model to use. One of `gpt-image-1`,

16761 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

16762 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

16763 `gpt-image-1`.

16664 16764 

16665 - `"gpt-image-1"`16765 - `"gpt-image-1"`

16666 16766 

16668 16768 

16669 - `"gpt-image-1.5"`16769 - `"gpt-image-1.5"`

16670 16770 

16771 - `"gpt-image-2"`

16772 

16773 - `"gpt-image-2-2026-04-21"`

16774 

16671 - `moderation: optional "auto" or "low"`16775 - `moderation: optional "auto" or "low"`

16672 16776 

16673 Moderation level for the generated image. Default: `auto`.16777 Moderation level for the generated image. Default: `auto`.

2234 2234 

2235 - `background: optional "transparent" or "opaque" or "auto"`2235 - `background: optional "transparent" or "opaque" or "auto"`

2236 2236 

2237 Background type for the generated image. One of `transparent`,2237 Set the background of the generated image. One of `transparent`,

2238 `opaque`, or `auto`. Default: `auto`.2238 `opaque`, or `auto`. Transparent backgrounds are available for

2239 supported GPT Image models. For `gpt-image-2` and

2240 `gpt-image-2-2026-04-21`, this support is in preview. When using

2241 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

2239 2242 

2240 - `"transparent"`2243 - `"transparent"`

2241 2244 

2264 2267 

2265 Base64-encoded mask image.2268 Base64-encoded mask image.

2266 2269 

2267 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2270 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2268 2271 

2269 The image generation model to use. Default: `gpt-image-1`.2272 The image generation model to use. One of `gpt-image-1`,

2273 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2274 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2275 `gpt-image-1`.

2270 2276 

2271 - `string`2277 - `string`

2272 2278 

2273 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2279 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2274 2280 

2275 The image generation model to use. Default: `gpt-image-1`.2281 The image generation model to use. One of `gpt-image-1`,

2282 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2283 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2284 `gpt-image-1`.

2276 2285 

2277 - `"gpt-image-1"`2286 - `"gpt-image-1"`

2278 2287 

2280 2289 

2281 - `"gpt-image-1.5"`2290 - `"gpt-image-1.5"`

2282 2291 

2292 - `"gpt-image-2"`

2293 

2294 - `"gpt-image-2-2026-04-21"`

2295 

2283 - `moderation: optional "auto" or "low"`2296 - `moderation: optional "auto" or "low"`

2284 2297 

2285 Moderation level for the generated image. Default: `auto`.2298 Moderation level for the generated image. Default: `auto`.

3397 3410 

3398 - `background: optional "transparent" or "opaque" or "auto"`3411 - `background: optional "transparent" or "opaque" or "auto"`

3399 3412 

3400 Background type for the generated image. One of `transparent`,3413 Set the background of the generated image. One of `transparent`,

3401 `opaque`, or `auto`. Default: `auto`.3414 `opaque`, or `auto`. Transparent backgrounds are available for

3415 supported GPT Image models. For `gpt-image-2` and

3416 `gpt-image-2-2026-04-21`, this support is in preview. When using

3417 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

3402 3418 

3403 - `"transparent"`3419 - `"transparent"`

3404 3420 

3427 3443 

3428 Base64-encoded mask image.3444 Base64-encoded mask image.

3429 3445 

3430 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3446 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3431 3447 

3432 The image generation model to use. Default: `gpt-image-1`.3448 The image generation model to use. One of `gpt-image-1`,

3449 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3450 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3451 `gpt-image-1`.

3433 3452 

3434 - `string`3453 - `string`

3435 3454 

3436 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3455 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3437 3456 

3438 The image generation model to use. Default: `gpt-image-1`.3457 The image generation model to use. One of `gpt-image-1`,

3458 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3459 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3460 `gpt-image-1`.

3439 3461 

3440 - `"gpt-image-1"`3462 - `"gpt-image-1"`

3441 3463 

3443 3465 

3444 - `"gpt-image-1.5"`3466 - `"gpt-image-1.5"`

3445 3467 

3468 - `"gpt-image-2"`

3469 

3470 - `"gpt-image-2-2026-04-21"`

3471 

3446 - `moderation: optional "auto" or "low"`3472 - `moderation: optional "auto" or "low"`

3447 3473 

3448 Moderation level for the generated image. Default: `auto`.3474 Moderation level for the generated image. Default: `auto`.

6722 6748 

6723 - `background: optional "transparent" or "opaque" or "auto"`6749 - `background: optional "transparent" or "opaque" or "auto"`

6724 6750 

6725 Background type for the generated image. One of `transparent`,6751 Set the background of the generated image. One of `transparent`,

6726 `opaque`, or `auto`. Default: `auto`.6752 `opaque`, or `auto`. Transparent backgrounds are available for

6753 supported GPT Image models. For `gpt-image-2` and

6754 `gpt-image-2-2026-04-21`, this support is in preview. When using

6755 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

6727 6756 

6728 - `"transparent"`6757 - `"transparent"`

6729 6758 

6752 6781 

6753 Base64-encoded mask image.6782 Base64-encoded mask image.

6754 6783 

6755 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`6784 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

6756 6785 

6757 The image generation model to use. Default: `gpt-image-1`.6786 The image generation model to use. One of `gpt-image-1`,

6787 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

6788 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

6789 `gpt-image-1`.

6758 6790 

6759 - `string`6791 - `string`

6760 6792 

6761 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`6793 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

6762 6794 

6763 The image generation model to use. Default: `gpt-image-1`.6795 The image generation model to use. One of `gpt-image-1`,

6796 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

6797 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

6798 `gpt-image-1`.

6764 6799 

6765 - `"gpt-image-1"`6800 - `"gpt-image-1"`

6766 6801 

6768 6803 

6769 - `"gpt-image-1.5"`6804 - `"gpt-image-1.5"`

6770 6805 

6806 - `"gpt-image-2"`

6807 

6808 - `"gpt-image-2-2026-04-21"`

6809 

6771 - `moderation: optional "auto" or "low"`6810 - `moderation: optional "auto" or "low"`

6772 6811 

6773 Moderation level for the generated image. Default: `auto`.6812 Moderation level for the generated image. Default: `auto`.

7763 7802 

7764 - `background: optional "transparent" or "opaque" or "auto"`7803 - `background: optional "transparent" or "opaque" or "auto"`

7765 7804 

7766 Background type for the generated image. One of `transparent`,7805 Set the background of the generated image. One of `transparent`,

7767 `opaque`, or `auto`. Default: `auto`.7806 `opaque`, or `auto`. Transparent backgrounds are available for

7807 supported GPT Image models. For `gpt-image-2` and

7808 `gpt-image-2-2026-04-21`, this support is in preview. When using

7809 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

7768 7810 

7769 - `"transparent"`7811 - `"transparent"`

7770 7812 

7793 7835 

7794 Base64-encoded mask image.7836 Base64-encoded mask image.

7795 7837 

7796 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`7838 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

7797 7839 

7798 The image generation model to use. Default: `gpt-image-1`.7840 The image generation model to use. One of `gpt-image-1`,

7841 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

7842 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

7843 `gpt-image-1`.

7799 7844 

7800 - `string`7845 - `string`

7801 7846 

7802 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`7847 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

7803 7848 

7804 The image generation model to use. Default: `gpt-image-1`.7849 The image generation model to use. One of `gpt-image-1`,

7850 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

7851 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

7852 `gpt-image-1`.

7805 7853 

7806 - `"gpt-image-1"`7854 - `"gpt-image-1"`

7807 7855 

7809 7857 

7810 - `"gpt-image-1.5"`7858 - `"gpt-image-1.5"`

7811 7859 

7860 - `"gpt-image-2"`

7861 

7862 - `"gpt-image-2-2026-04-21"`

7863 

7812 - `moderation: optional "auto" or "low"`7864 - `moderation: optional "auto" or "low"`

7813 7865 

7814 Moderation level for the generated image. Default: `auto`.7866 Moderation level for the generated image. Default: `auto`.

9923 9975 

9924 - `background: optional "transparent" or "opaque" or "auto"`9976 - `background: optional "transparent" or "opaque" or "auto"`

9925 9977 

9926 Background type for the generated image. One of `transparent`,9978 Set the background of the generated image. One of `transparent`,

9927 `opaque`, or `auto`. Default: `auto`.9979 `opaque`, or `auto`. Transparent backgrounds are available for

9980 supported GPT Image models. For `gpt-image-2` and

9981 `gpt-image-2-2026-04-21`, this support is in preview. When using

9982 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

9928 9983 

9929 - `"transparent"`9984 - `"transparent"`

9930 9985 

9953 10008 

9954 Base64-encoded mask image.10009 Base64-encoded mask image.

9955 10010 

9956 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`10011 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

9957 10012 

9958 The image generation model to use. Default: `gpt-image-1`.10013 The image generation model to use. One of `gpt-image-1`,

10014 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

10015 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

10016 `gpt-image-1`.

9959 10017 

9960 - `string`10018 - `string`

9961 10019 

9962 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`10020 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

9963 10021 

9964 The image generation model to use. Default: `gpt-image-1`.10022 The image generation model to use. One of `gpt-image-1`,

10023 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

10024 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

10025 `gpt-image-1`.

9965 10026 

9966 - `"gpt-image-1"`10027 - `"gpt-image-1"`

9967 10028 

9969 10030 

9970 - `"gpt-image-1.5"`10031 - `"gpt-image-1.5"`

9971 10032 

10033 - `"gpt-image-2"`

10034 

10035 - `"gpt-image-2-2026-04-21"`

10036 

9972 - `moderation: optional "auto" or "low"`10037 - `moderation: optional "auto" or "low"`

9973 10038 

9974 Moderation level for the generated image. Default: `auto`.10039 Moderation level for the generated image. Default: `auto`.

2055 2055 

2056 - `background: optional "transparent" or "opaque" or "auto"`2056 - `background: optional "transparent" or "opaque" or "auto"`

2057 2057 

2058 Background type for the generated image. One of `transparent`,2058 Set the background of the generated image. One of `transparent`,

2059 `opaque`, or `auto`. Default: `auto`.2059 `opaque`, or `auto`. Transparent backgrounds are available for

2060 supported GPT Image models. For `gpt-image-2` and

2061 `gpt-image-2-2026-04-21`, this support is in preview. When using

2062 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

2060 2063 

2061 - `"transparent"`2064 - `"transparent"`

2062 2065 

2085 2088 

2086 Base64-encoded mask image.2089 Base64-encoded mask image.

2087 2090 

2088 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2091 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2089 2092 

2090 The image generation model to use. Default: `gpt-image-1`.2093 The image generation model to use. One of `gpt-image-1`,

2094 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2095 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2096 `gpt-image-1`.

2091 2097 

2092 - `string`2098 - `string`

2093 2099 

2094 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2100 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2095 2101 

2096 The image generation model to use. Default: `gpt-image-1`.2102 The image generation model to use. One of `gpt-image-1`,

2103 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2104 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2105 `gpt-image-1`.

2097 2106 

2098 - `"gpt-image-1"`2107 - `"gpt-image-1"`

2099 2108 

2101 2110 

2102 - `"gpt-image-1.5"`2111 - `"gpt-image-1.5"`

2103 2112 

2113 - `"gpt-image-2"`

2114 

2115 - `"gpt-image-2-2026-04-21"`

2116 

2104 - `moderation: optional "auto" or "low"`2117 - `moderation: optional "auto" or "low"`

2105 2118 

2106 Moderation level for the generated image. Default: `auto`.2119 Moderation level for the generated image. Default: `auto`.

3214 3227 

3215 - `background: optional "transparent" or "opaque" or "auto"`3228 - `background: optional "transparent" or "opaque" or "auto"`

3216 3229 

3217 Background type for the generated image. One of `transparent`,3230 Set the background of the generated image. One of `transparent`,

3218 `opaque`, or `auto`. Default: `auto`.3231 `opaque`, or `auto`. Transparent backgrounds are available for

3232 supported GPT Image models. For `gpt-image-2` and

3233 `gpt-image-2-2026-04-21`, this support is in preview. When using

3234 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

3219 3235 

3220 - `"transparent"`3236 - `"transparent"`

3221 3237 

3244 3260 

3245 Base64-encoded mask image.3261 Base64-encoded mask image.

3246 3262 

3247 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3263 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3248 3264 

3249 The image generation model to use. Default: `gpt-image-1`.3265 The image generation model to use. One of `gpt-image-1`,

3266 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3267 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3268 `gpt-image-1`.

3250 3269 

3251 - `string`3270 - `string`

3252 3271 

3253 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3272 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3254 3273 

3255 The image generation model to use. Default: `gpt-image-1`.3274 The image generation model to use. One of `gpt-image-1`,

3275 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3276 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3277 `gpt-image-1`.

3256 3278 

3257 - `"gpt-image-1"`3279 - `"gpt-image-1"`

3258 3280 

3260 3282 

3261 - `"gpt-image-1.5"`3283 - `"gpt-image-1.5"`

3262 3284 

3285 - `"gpt-image-2"`

3286 

3287 - `"gpt-image-2-2026-04-21"`

3288 

3263 - `moderation: optional "auto" or "low"`3289 - `moderation: optional "auto" or "low"`

3264 3290 

3265 Moderation level for the generated image. Default: `auto`.3291 Moderation level for the generated image. Default: `auto`.

2123 2123 

2124 - `background: optional "transparent" or "opaque" or "auto"`2124 - `background: optional "transparent" or "opaque" or "auto"`

2125 2125 

2126 Background type for the generated image. One of `transparent`,2126 Set the background of the generated image. One of `transparent`,

2127 `opaque`, or `auto`. Default: `auto`.2127 `opaque`, or `auto`. Transparent backgrounds are available for

2128 supported GPT Image models. For `gpt-image-2` and

2129 `gpt-image-2-2026-04-21`, this support is in preview. When using

2130 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

2128 2131 

2129 - `"transparent"`2132 - `"transparent"`

2130 2133 

2153 2156 

2154 Base64-encoded mask image.2157 Base64-encoded mask image.

2155 2158 

2156 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2159 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2157 2160 

2158 The image generation model to use. Default: `gpt-image-1`.2161 The image generation model to use. One of `gpt-image-1`,

2162 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2163 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2164 `gpt-image-1`.

2159 2165 

2160 - `string`2166 - `string`

2161 2167 

2162 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`2168 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

2163 2169 

2164 The image generation model to use. Default: `gpt-image-1`.2170 The image generation model to use. One of `gpt-image-1`,

2171 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

2172 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

2173 `gpt-image-1`.

2165 2174 

2166 - `"gpt-image-1"`2175 - `"gpt-image-1"`

2167 2176 

2169 2178 

2170 - `"gpt-image-1.5"`2179 - `"gpt-image-1.5"`

2171 2180 

2181 - `"gpt-image-2"`

2182 

2183 - `"gpt-image-2-2026-04-21"`

2184 

2172 - `moderation: optional "auto" or "low"`2185 - `moderation: optional "auto" or "low"`

2173 2186 

2174 Moderation level for the generated image. Default: `auto`.2187 Moderation level for the generated image. Default: `auto`.

3286 3299 

3287 - `background: optional "transparent" or "opaque" or "auto"`3300 - `background: optional "transparent" or "opaque" or "auto"`

3288 3301 

3289 Background type for the generated image. One of `transparent`,3302 Set the background of the generated image. One of `transparent`,

3290 `opaque`, or `auto`. Default: `auto`.3303 `opaque`, or `auto`. Transparent backgrounds are available for

3304 supported GPT Image models. For `gpt-image-2` and

3305 `gpt-image-2-2026-04-21`, this support is in preview. When using

3306 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

3291 3307 

3292 - `"transparent"`3308 - `"transparent"`

3293 3309 

3316 3332 

3317 Base64-encoded mask image.3333 Base64-encoded mask image.

3318 3334 

3319 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3335 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3320 3336 

3321 The image generation model to use. Default: `gpt-image-1`.3337 The image generation model to use. One of `gpt-image-1`,

3338 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3339 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3340 `gpt-image-1`.

3322 3341 

3323 - `string`3342 - `string`

3324 3343 

3325 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`3344 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

3326 3345 

3327 The image generation model to use. Default: `gpt-image-1`.3346 The image generation model to use. One of `gpt-image-1`,

3347 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

3348 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

3349 `gpt-image-1`.

3328 3350 

3329 - `"gpt-image-1"`3351 - `"gpt-image-1"`

3330 3352 

3332 3354 

3333 - `"gpt-image-1.5"`3355 - `"gpt-image-1.5"`

3334 3356 

3357 - `"gpt-image-2"`

3358 

3359 - `"gpt-image-2-2026-04-21"`

3360 

3335 - `moderation: optional "auto" or "low"`3361 - `moderation: optional "auto" or "low"`

3336 3362 

3337 Moderation level for the generated image. Default: `auto`.3363 Moderation level for the generated image. Default: `auto`.

5813 5839 

5814 - `background: optional "transparent" or "opaque" or "auto"`5840 - `background: optional "transparent" or "opaque" or "auto"`

5815 5841 

5816 Background type for the generated image. One of `transparent`,5842 Set the background of the generated image. One of `transparent`,

5817 `opaque`, or `auto`. Default: `auto`.5843 `opaque`, or `auto`. Transparent backgrounds are available for

5844 supported GPT Image models. For `gpt-image-2` and

5845 `gpt-image-2-2026-04-21`, this support is in preview. When using

5846 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

5818 5847 

5819 - `"transparent"`5848 - `"transparent"`

5820 5849 

5843 5872 

5844 Base64-encoded mask image.5873 Base64-encoded mask image.

5845 5874 

5846 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`5875 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

5847 5876 

5848 The image generation model to use. Default: `gpt-image-1`.5877 The image generation model to use. One of `gpt-image-1`,

5878 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

5879 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

5880 `gpt-image-1`.

5849 5881 

5850 - `string`5882 - `string`

5851 5883 

5852 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`5884 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

5853 5885 

5854 The image generation model to use. Default: `gpt-image-1`.5886 The image generation model to use. One of `gpt-image-1`,

5887 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

5888 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

5889 `gpt-image-1`.

5855 5890 

5856 - `"gpt-image-1"`5891 - `"gpt-image-1"`

5857 5892 

5859 5894 

5860 - `"gpt-image-1.5"`5895 - `"gpt-image-1.5"`

5861 5896 

5897 - `"gpt-image-2"`

5898 

5899 - `"gpt-image-2-2026-04-21"`

5900 

5862 - `moderation: optional "auto" or "low"`5901 - `moderation: optional "auto" or "low"`

5863 5902 

5864 Moderation level for the generated image. Default: `auto`.5903 Moderation level for the generated image. Default: `auto`.

1739 1739 

1740 - `background: optional "transparent" or "opaque" or "auto"`1740 - `background: optional "transparent" or "opaque" or "auto"`

1741 1741 

1742 Background type for the generated image. One of `transparent`,1742 Set the background of the generated image. One of `transparent`,

1743 `opaque`, or `auto`. Default: `auto`.1743 `opaque`, or `auto`. Transparent backgrounds are available for

1744 supported GPT Image models. For `gpt-image-2` and

1745 `gpt-image-2-2026-04-21`, this support is in preview. When using

1746 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

1744 1747 

1745 - `"transparent"`1748 - `"transparent"`

1746 1749 

1769 1772 

1770 Base64-encoded mask image.1773 Base64-encoded mask image.

1771 1774 

1772 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`1775 - `model: optional string or "gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

1773 1776 

1774 The image generation model to use. Default: `gpt-image-1`.1777 The image generation model to use. One of `gpt-image-1`,

1778 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

1779 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

1780 `gpt-image-1`.

1775 1781 

1776 - `string`1782 - `string`

1777 1783 

1778 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5"`1784 - `"gpt-image-1" or "gpt-image-1-mini" or "gpt-image-1.5" or 2 more`

1779 1785 

1780 The image generation model to use. Default: `gpt-image-1`.1786 The image generation model to use. One of `gpt-image-1`,

1787 `gpt-image-1-mini`, `gpt-image-1.5`, `gpt-image-2`,

1788 `gpt-image-2-2026-04-21`, or `chatgpt-image-latest`. Default:

1789 `gpt-image-1`.

1781 1790 

1782 - `"gpt-image-1"`1791 - `"gpt-image-1"`

1783 1792 

1785 1794 

1786 - `"gpt-image-1.5"`1795 - `"gpt-image-1.5"`

1787 1796 

1797 - `"gpt-image-2"`

1798 

1799 - `"gpt-image-2-2026-04-21"`

1800 

1788 - `moderation: optional "auto" or "low"`1801 - `moderation: optional "auto" or "low"`

1789 1802 

1790 Moderation level for the generated image. Default: `auto`.1803 Moderation level for the generated image. Default: `auto`.

2746 2759 

2747 - `background: optional "transparent" or "opaque" or "auto"`2760 - `background: optional "transparent" or "opaque" or "auto"`

2748 2761 

2749 Background type for the generated image. One of `transparent`,2762 Set the background of the generated image. One of `transparent`,

2750 `opaque`, or `auto`. Default: `auto`.2763 `opaque`, or `auto`. Transparent backgrounds are available for

2764 supported GPT Image models. For `gpt-image-2` and

2765 `gpt-image-2-2026-04-21`, this support is in preview. When using

2766 `transparent`, set the output format to `png` or `webp`. Default: `auto`.

2751 2767 

2752 - `"transparent"`2768 - `"transparent"`