Models Directory

ChatGPT-4o points to the GPT-4o snapshot currently used in ChatGPT. We recommend using an API model like GPT-5 or GPT-4o for most API integrations, but feel free to use this ChatGPT-4o model to test our latest improvements for chat use cases.

Claude 3 Opus

Claude 3.5 Sonnet

Claude 3.5 Sonnet v2

Claude Opus 4

Claude Opus 4.1

Claude Opus 4.5

Claude Opus 4.6

Claude Sonnet 3.7

Claude Sonnet 4

Claude Sonnet 4.5

GPT Image 1 is a natively multimodal language model that accepts both text and image inputs, and produces image outputs.

GPT-4 is an older version of a high-intelligence GPT model, usable in Chat Completions.

GPT-4 Turbo is the next generation of GPT-4, an older high-intelligence GPT model. It was designed to be a cheaper, better version of GPT-4. Today, we recommend using a newer model like GPT-4o.

This is a research preview of the GPT-4 Turbo model, an older high-intelligence GPT model.

Deprecated - a research preview of GPT-4.5. We recommend using gpt-4.1 or o3 models instead for most use cases

This is a preview release of the GPT-4o Realtime model, capable of responding to audio and text inputs in realtime over WebRTC or a WebSocket interface.

GPT-5 pro uses more compute to think harder and provide consistently better answers.

GPT-5.2 pro is available in the Responses API only to enable support for multi-turn model interactions before responding to API requests, and other advanced API features in the future. Since GPT-5.2 pro is designed to tackle tough problems, some requests may take several minutes to finish. To avoid timeouts, try using background mode. GPT-5.2 pro supports reasoning.effort: medium, high, xhigh.

The best model in the world for multimodal understanding, and our most powerful agentic and vibe-coding model yet, delivering richer visuals and deeper interactivity, all built on a foundation of state-of-the-art reasoning.