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go/resources/uploads/index.md 2026-07-10 23:02 UTC to 2026-07-12 06:58 UTC

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Uploads

Create upload

client.Uploads.New(ctx, body) (*Upload, error)

post /uploads

Creates an intermediate Upload object that you can add Parts to. Currently, an Upload can accept at most 8 GB in total and expires after an hour after you create it.

Once you complete the Upload, we will create a File object that contains all the parts you uploaded. This File is usable in the rest of our platform as a regular File object.

For certain purpose values, the correct mime_type must be specified. Please refer to documentation for the supported MIME types for your use case.

For guidance on the proper filename extensions for each purpose, please follow the documentation on creating a File.

Returns the Upload object with status pending.

Parameters

  • body UploadNewParams

    • Bytes param.Field[int64]

      The number of bytes in the file you are uploading.

    • Filename param.Field[string]

      The name of the file to upload.

    • MimeType param.Field[string]

      The MIME type of the file.

      This must fall within the supported MIME types for your file purpose. See the supported MIME types for assistants and vision.

    • Purpose param.Field[FilePurpose]

      The intended purpose of the uploaded file.

      See the documentation on File purposes.

    • ExpiresAfter param.Field[UploadNewParamsExpiresAfter]

      The expiration policy for a file. By default, files with purpose=batch expire after 30 days and all other files are persisted until they are manually deleted.

      • Anchor CreatedAt

        Anchor timestamp after which the expiration policy applies. Supported anchors: created_at.

        • const CreatedAtCreatedAt CreatedAt = "created_at"
      • Seconds int64

        The number of seconds after the anchor time that the file will expire. Must be between 3600 (1 hour) and 2592000 (30 days).

Returns

  • type Upload struct{…}

    The Upload object can accept byte chunks in the form of Parts.

    • ID string

      The Upload unique identifier, which can be referenced in API endpoints.

    • Bytes int64

      The intended number of bytes to be uploaded.

    • CreatedAt int64

      The Unix timestamp (in seconds) for when the Upload was created.

    • ExpiresAt int64

      The Unix timestamp (in seconds) for when the Upload will expire.

    • Filename string

      The name of the file to be uploaded.

    • Object Upload

      The object type, which is always "upload".

      • const UploadUpload Upload = "upload"
    • Purpose string

      The intended purpose of the file. Please refer here for acceptable values.

    • Status UploadStatus

      The status of the Upload.

      • const UploadStatusPending UploadStatus = "pending"

      • const UploadStatusCompleted UploadStatus = "completed"

      • const UploadStatusCancelled UploadStatus = "cancelled"

      • const UploadStatusExpired UploadStatus = "expired"

    • File FileObject

      The File object represents a document that has been uploaded to OpenAI.

      • ID string

        The file identifier, which can be referenced in the API endpoints.

      • Bytes int64

        The size of the file, in bytes.

      • CreatedAt int64

        The Unix timestamp (in seconds) for when the file was created.

      • Filename string

        The name of the file.

      • Object File

        The object type, which is always file.

        • const FileFile File = "file"
      • Purpose FileObjectPurpose

        The intended purpose of the file. Supported values are assistants, assistants_output, batch, batch_output, fine-tune, fine-tune-results, vision, and user_data.

        • const FileObjectPurposeAssistants FileObjectPurpose = "assistants"

        • const FileObjectPurposeAssistantsOutput FileObjectPurpose = "assistants_output"

        • const FileObjectPurposeBatch FileObjectPurpose = "batch"

        • const FileObjectPurposeBatchOutput FileObjectPurpose = "batch_output"

        • const FileObjectPurposeFineTune FileObjectPurpose = "fine-tune"

        • const FileObjectPurposeFineTuneResults FileObjectPurpose = "fine-tune-results"

        • const FileObjectPurposeVision FileObjectPurpose = "vision"

        • const FileObjectPurposeUserData FileObjectPurpose = "user_data"

      • Status FileObjectStatus

        Deprecated. The current status of the file, which can be either uploaded, processed, or error.

        • const FileObjectStatusUploaded FileObjectStatus = "uploaded"

        • const FileObjectStatusProcessed FileObjectStatus = "processed"

        • const FileObjectStatusError FileObjectStatus = "error"

      • ExpiresAt int64

        The Unix timestamp (in seconds) for when the file will expire.

      • StatusDetails string

        Deprecated. For details on why a fine-tuning training file failed validation, see the error field on fine_tuning.job.

Example

package main

import (
  "context"
  "fmt"

  "github.com/openai/openai-go"
  "github.com/openai/openai-go/option"
)

func main() {
  client := openai.NewClient(
    option.WithAPIKey("My API Key"),
  )
  upload, err := client.Uploads.New(context.TODO(), openai.UploadNewParams{
    Bytes: 0,
    Filename: "filename",
    MimeType: "mime_type",
    Purpose: openai.FilePurposeAssistants,
  })
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", upload.ID)
}

Response

{
  "id": "id",
  "bytes": 0,
  "created_at": 0,
  "expires_at": 0,
  "filename": "filename",
  "object": "upload",
  "purpose": "purpose",
  "status": "pending",
  "file": {
    "id": "id",
    "bytes": 0,
    "created_at": 0,
    "filename": "filename",
    "object": "file",
    "purpose": "assistants",
    "status": "uploaded",
    "expires_at": 0,
    "status_details": "status_details"
  }
}

Complete upload

client.Uploads.Complete(ctx, uploadID, body) (*Upload, error)

post /uploads/{upload_id}/complete

Completes the Upload.

Within the returned Upload object, there is a nested File object that is ready to use in the rest of the platform.

You can specify the order of the Parts by passing in an ordered list of the Part IDs.

The number of bytes uploaded upon completion must match the number of bytes initially specified when creating the Upload object. No Parts may be added after an Upload is completed. Returns the Upload object with status completed, including an additional file property containing the created usable File object.

Parameters

  • uploadID string

  • body UploadCompleteParams

    • PartIDs param.Field[[]string]

      The ordered list of Part IDs.

    • Md5 param.Field[string]

      The optional md5 checksum for the file contents to verify if the bytes uploaded matches what you expect.

Returns

  • type Upload struct{…}

    The Upload object can accept byte chunks in the form of Parts.

    • ID string

      The Upload unique identifier, which can be referenced in API endpoints.

    • Bytes int64

      The intended number of bytes to be uploaded.

    • CreatedAt int64

      The Unix timestamp (in seconds) for when the Upload was created.

    • ExpiresAt int64

      The Unix timestamp (in seconds) for when the Upload will expire.

    • Filename string

      The name of the file to be uploaded.

    • Object Upload

      The object type, which is always "upload".

      • const UploadUpload Upload = "upload"
    • Purpose string

      The intended purpose of the file. Please refer here for acceptable values.

    • Status UploadStatus

      The status of the Upload.

      • const UploadStatusPending UploadStatus = "pending"

      • const UploadStatusCompleted UploadStatus = "completed"

      • const UploadStatusCancelled UploadStatus = "cancelled"

      • const UploadStatusExpired UploadStatus = "expired"

    • File FileObject

      The File object represents a document that has been uploaded to OpenAI.

      • ID string

        The file identifier, which can be referenced in the API endpoints.

      • Bytes int64

        The size of the file, in bytes.

      • CreatedAt int64

        The Unix timestamp (in seconds) for when the file was created.

      • Filename string

        The name of the file.

      • Object File

        The object type, which is always file.

        • const FileFile File = "file"
      • Purpose FileObjectPurpose

        The intended purpose of the file. Supported values are assistants, assistants_output, batch, batch_output, fine-tune, fine-tune-results, vision, and user_data.

        • const FileObjectPurposeAssistants FileObjectPurpose = "assistants"

        • const FileObjectPurposeAssistantsOutput FileObjectPurpose = "assistants_output"

        • const FileObjectPurposeBatch FileObjectPurpose = "batch"

        • const FileObjectPurposeBatchOutput FileObjectPurpose = "batch_output"

        • const FileObjectPurposeFineTune FileObjectPurpose = "fine-tune"

        • const FileObjectPurposeFineTuneResults FileObjectPurpose = "fine-tune-results"

        • const FileObjectPurposeVision FileObjectPurpose = "vision"

        • const FileObjectPurposeUserData FileObjectPurpose = "user_data"

      • Status FileObjectStatus

        Deprecated. The current status of the file, which can be either uploaded, processed, or error.

        • const FileObjectStatusUploaded FileObjectStatus = "uploaded"

        • const FileObjectStatusProcessed FileObjectStatus = "processed"

        • const FileObjectStatusError FileObjectStatus = "error"

      • ExpiresAt int64

        The Unix timestamp (in seconds) for when the file will expire.

      • StatusDetails string

        Deprecated. For details on why a fine-tuning training file failed validation, see the error field on fine_tuning.job.

Example

package main

import (
  "context"
  "fmt"

  "github.com/openai/openai-go"
  "github.com/openai/openai-go/option"
)

func main() {
  client := openai.NewClient(
    option.WithAPIKey("My API Key"),
  )
  upload, err := client.Uploads.Complete(
    context.TODO(),
    "upload_abc123",
    openai.UploadCompleteParams{
      PartIDs: []string{"string"},
    },
  )
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", upload.ID)
}

Response

{
  "id": "id",
  "bytes": 0,
  "created_at": 0,
  "expires_at": 0,
  "filename": "filename",
  "object": "upload",
  "purpose": "purpose",
  "status": "pending",
  "file": {
    "id": "id",
    "bytes": 0,
    "created_at": 0,
    "filename": "filename",
    "object": "file",
    "purpose": "assistants",
    "status": "uploaded",
    "expires_at": 0,
    "status_details": "status_details"
  }
}

Cancel upload

client.Uploads.Cancel(ctx, uploadID) (*Upload, error)

post /uploads/{upload_id}/cancel

Cancels the Upload. No Parts may be added after an Upload is cancelled.

Returns the Upload object with status cancelled.

Parameters

  • uploadID string

Returns

  • type Upload struct{…}

    The Upload object can accept byte chunks in the form of Parts.

    • ID string

      The Upload unique identifier, which can be referenced in API endpoints.

    • Bytes int64

      The intended number of bytes to be uploaded.

    • CreatedAt int64

      The Unix timestamp (in seconds) for when the Upload was created.

    • ExpiresAt int64

      The Unix timestamp (in seconds) for when the Upload will expire.

    • Filename string

      The name of the file to be uploaded.

    • Object Upload

      The object type, which is always "upload".

      • const UploadUpload Upload = "upload"
    • Purpose string

      The intended purpose of the file. Please refer here for acceptable values.

    • Status UploadStatus

      The status of the Upload.

      • const UploadStatusPending UploadStatus = "pending"

      • const UploadStatusCompleted UploadStatus = "completed"

      • const UploadStatusCancelled UploadStatus = "cancelled"

      • const UploadStatusExpired UploadStatus = "expired"

    • File FileObject

      The File object represents a document that has been uploaded to OpenAI.

      • ID string

        The file identifier, which can be referenced in the API endpoints.

      • Bytes int64

        The size of the file, in bytes.

      • CreatedAt int64

        The Unix timestamp (in seconds) for when the file was created.

      • Filename string

        The name of the file.

      • Object File

        The object type, which is always file.

        • const FileFile File = "file"
      • Purpose FileObjectPurpose

        The intended purpose of the file. Supported values are assistants, assistants_output, batch, batch_output, fine-tune, fine-tune-results, vision, and user_data.

        • const FileObjectPurposeAssistants FileObjectPurpose = "assistants"

        • const FileObjectPurposeAssistantsOutput FileObjectPurpose = "assistants_output"

        • const FileObjectPurposeBatch FileObjectPurpose = "batch"

        • const FileObjectPurposeBatchOutput FileObjectPurpose = "batch_output"

        • const FileObjectPurposeFineTune FileObjectPurpose = "fine-tune"

        • const FileObjectPurposeFineTuneResults FileObjectPurpose = "fine-tune-results"

        • const FileObjectPurposeVision FileObjectPurpose = "vision"

        • const FileObjectPurposeUserData FileObjectPurpose = "user_data"

      • Status FileObjectStatus

        Deprecated. The current status of the file, which can be either uploaded, processed, or error.

        • const FileObjectStatusUploaded FileObjectStatus = "uploaded"

        • const FileObjectStatusProcessed FileObjectStatus = "processed"

        • const FileObjectStatusError FileObjectStatus = "error"

      • ExpiresAt int64

        The Unix timestamp (in seconds) for when the file will expire.

      • StatusDetails string

        Deprecated. For details on why a fine-tuning training file failed validation, see the error field on fine_tuning.job.

Example

package main

import (
  "context"
  "fmt"

  "github.com/openai/openai-go"
  "github.com/openai/openai-go/option"
)

func main() {
  client := openai.NewClient(
    option.WithAPIKey("My API Key"),
  )
  upload, err := client.Uploads.Cancel(context.TODO(), "upload_abc123")
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", upload.ID)
}

Response

{
  "id": "id",
  "bytes": 0,
  "created_at": 0,
  "expires_at": 0,
  "filename": "filename",
  "object": "upload",
  "purpose": "purpose",
  "status": "pending",
  "file": {
    "id": "id",
    "bytes": 0,
    "created_at": 0,
    "filename": "filename",
    "object": "file",
    "purpose": "assistants",
    "status": "uploaded",
    "expires_at": 0,
    "status_details": "status_details"
  }
}

Domain Types

Upload

  • type Upload struct{…}

    The Upload object can accept byte chunks in the form of Parts.

    • ID string

      The Upload unique identifier, which can be referenced in API endpoints.

    • Bytes int64

      The intended number of bytes to be uploaded.

    • CreatedAt int64

      The Unix timestamp (in seconds) for when the Upload was created.

    • ExpiresAt int64

      The Unix timestamp (in seconds) for when the Upload will expire.

    • Filename string

      The name of the file to be uploaded.

    • Object Upload

      The object type, which is always "upload".

      • const UploadUpload Upload = "upload"
    • Purpose string

      The intended purpose of the file. Please refer here for acceptable values.

    • Status UploadStatus

      The status of the Upload.

      • const UploadStatusPending UploadStatus = "pending"

      • const UploadStatusCompleted UploadStatus = "completed"

      • const UploadStatusCancelled UploadStatus = "cancelled"

      • const UploadStatusExpired UploadStatus = "expired"

    • File FileObject

      The File object represents a document that has been uploaded to OpenAI.

      • ID string

        The file identifier, which can be referenced in the API endpoints.

      • Bytes int64

        The size of the file, in bytes.

      • CreatedAt int64

        The Unix timestamp (in seconds) for when the file was created.

      • Filename string

        The name of the file.

      • Object File

        The object type, which is always file.

        • const FileFile File = "file"
      • Purpose FileObjectPurpose

        The intended purpose of the file. Supported values are assistants, assistants_output, batch, batch_output, fine-tune, fine-tune-results, vision, and user_data.

        • const FileObjectPurposeAssistants FileObjectPurpose = "assistants"

        • const FileObjectPurposeAssistantsOutput FileObjectPurpose = "assistants_output"

        • const FileObjectPurposeBatch FileObjectPurpose = "batch"

        • const FileObjectPurposeBatchOutput FileObjectPurpose = "batch_output"

        • const FileObjectPurposeFineTune FileObjectPurpose = "fine-tune"

        • const FileObjectPurposeFineTuneResults FileObjectPurpose = "fine-tune-results"

        • const FileObjectPurposeVision FileObjectPurpose = "vision"

        • const FileObjectPurposeUserData FileObjectPurpose = "user_data"

      • Status FileObjectStatus

        Deprecated. The current status of the file, which can be either uploaded, processed, or error.

        • const FileObjectStatusUploaded FileObjectStatus = "uploaded"

        • const FileObjectStatusProcessed FileObjectStatus = "processed"

        • const FileObjectStatusError FileObjectStatus = "error"

      • ExpiresAt int64

        The Unix timestamp (in seconds) for when the file will expire.

      • StatusDetails string

        Deprecated. For details on why a fine-tuning training file failed validation, see the error field on fine_tuning.job.

Parts

Add upload part

client.Uploads.Parts.New(ctx, uploadID, body) (*UploadPart, error)

post /uploads/{upload_id}/parts

Adds a Part to an Upload object. A Part represents a chunk of bytes from the file you are trying to upload.

Each Part can be at most 64 MB, and you can add Parts until you hit the Upload maximum of 8 GB.

It is possible to add multiple Parts in parallel. You can decide the intended order of the Parts when you complete the Upload.

Parameters

  • uploadID string

  • body UploadPartNewParams

    • Data param.Field[Reader]

      The chunk of bytes for this Part.

Returns

  • type UploadPart struct{…}

    The upload Part represents a chunk of bytes we can add to an Upload object.

    • ID string

      The upload Part unique identifier, which can be referenced in API endpoints.

    • CreatedAt int64

      The Unix timestamp (in seconds) for when the Part was created.

    • Object UploadPart

      The object type, which is always upload.part.

      • const UploadPartUploadPart UploadPart = "upload.part"
    • UploadID string

      The ID of the Upload object that this Part was added to.

Example

package main

import (
  "bytes"
  "context"
  "fmt"
  "io"

  "github.com/openai/openai-go"
  "github.com/openai/openai-go/option"
)

func main() {
  client := openai.NewClient(
    option.WithAPIKey("My API Key"),
  )
  uploadPart, err := client.Uploads.Parts.New(
    context.TODO(),
    "upload_abc123",
    openai.UploadPartNewParams{
      Data: io.Reader(bytes.NewBuffer([]byte("Example data"))),
    },
  )
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", uploadPart.ID)
}

Response

{
  "id": "id",
  "created_at": 0,
  "object": "upload.part",
  "upload_id": "upload_id"
}

Domain Types

Upload Part

  • type UploadPart struct{…}

    The upload Part represents a chunk of bytes we can add to an Upload object.

    • ID string

      The upload Part unique identifier, which can be referenced in API endpoints.

    • CreatedAt int64

      The Unix timestamp (in seconds) for when the Part was created.

    • Object UploadPart

      The object type, which is always upload.part.

      • const UploadPartUploadPart UploadPart = "upload.part"
    • UploadID string

      The ID of the Upload object that this Part was added to.