Models
For the complete documentation index, see llms.txt. Markdown versions of documentation pages are available by appending
.mdto the page URL.
Explore models available on the OpenAI API.
If you're not sure where to start, use GPT-6 Astra, our flagship model for complex reasoning and coding. Choose GPT-6.1 Sol to balance intelligence and cost, or GPT-6 Luna for cost-sensitive, high-volume workloads.
All latest OpenAI models support text and image input, text output, multilingual capabilities, and vision. Models are available via the Responses API and our Client SDKs.
Featured models
- GPT-6 Astra: Our most capable model for the most demanding work.
- GPT-6.1 Sol: Near-Astra performance for complex work at a lower cost.
- GPT-6.1 Terra: A fast, efficient model for visual reasoning, precise computer use, and clear, natural writing.
- GPT-6 Luna: Our most efficient model for focused, high-volume tasks.
Browse our full catalog of models
Browse all models, including deprecated models.
See how OpenAI uses your data and review deprecated models.
- Chat Latest: Latest Instant model used in ChatGPT
- GPT-5.2: Previous flagship model for professional work with configurable reasoning effort
- GPT-5.2 Pro: Previous pro model for professional work that produces smarter and more precise responses.
- GPT-5.4: A more affordable model for coding and professional work.
- GPT-5.4 Mini: Our strongest mini model yet for coding, computer use, and subagents
- GPT-5.4 Pro: Version of GPT-5.4 that produces smarter and more precise responses.
- GPT-5.5: A new class of intelligence for coding and professional work.
- GPT-5.5 Pro: Version of GPT-5.5 that produces smarter and more precise responses.
- GPT-5.6 Cyber: Cybersecurity model for authorized vulnerability research and security testing.
- GPT-5.6 Luna: GPT-5.6 model optimized for cost-sensitive workloads
- GPT-5.6 Sol: GPT-5.6 flagship model for complex professional work
- GPT-5.6 Terra: GPT-5.6 model that balances intelligence and cost
- GPT-6 Astra: Our most capable model for the most demanding work.
- GPT-6 Luna: Our most efficient model for focused, high-volume tasks.
- GPT-6 Sol: Built to power complex coding and agentic workflows.
- GPT-6-Cyber: Investigate a vulnerability, reproduce it in an authorized test environment, or verify a fix.
- GPT-6.1 Sol: Near-Astra performance for complex work at a lower cost.
- GPT-6.1 Terra: A fast, efficient model for visual reasoning, precise computer use, and clear, natural writing.
- GPT-Audio-1.5: The best voice model for audio in, audio out with Chat Completions.
- GPT-Image-2: State-of-the-art image generation model
- GPT-Image-2.5 Flare: Fast, high-quality everyday image generation
- GPT-Image-2.5 Sunburst: Our most capable model for image generation and editing
- GPT-Image-2.6 Flare: Image generation and editing for fast iteration
- GPT-Image-2.6 Sunburst: Image generation and editing for detailed visual work
- GPT-Live 1: Our premier model for natural, expressive voice conversations with smooth interruption handling.
- GPT-Live-Transcribe: Low-latency speech-to-text model for realtime transcription
- gpt-oss-120b: Most powerful open-weight model, fits into an H100 GPU
- gpt-oss-20b: Medium-sized open-weight model for low latency
- GPT-Realtime-1.5: The best voice model for audio in, audio out
- GPT-Realtime-2: Reasoning model with tool use
- GPT-Realtime-2.1: Reasoning model with tool use
- GPT-Realtime-2.1 Mini: Reasoning model with tool use
- GPT-Realtime-Translate: Streaming speech-to-speech translation model
- GPT-Realtime-Whisper: Streaming speech-to-text model for realtime transcription
- GPT-Transcribe: High-accuracy speech-to-text model for file and Realtime input transcription
- omni-moderation: Identify potentially harmful content in text and images
- text-embedding-3-large: Most capable embedding model
- text-embedding-3-small: Small embedding model
- text-embedding-ada-002: Older embedding model
- GPT-Rosalind: Life sciences reasoning for approved organizations. Model ID:
gpt-rosalind-research.