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

Large Language Models model. Pricing info: $3.00/M Input • $8.00/M Output • 160k Context

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

GPT Image 1.5 is our latest image generation model, with better instruction following and adherence to prompts. Learn more in our GPT Image 1.5 usage guide.

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.

GPT-4.1 excels at instruction following and tool calling, with broad knowledge across domains. It features a 1M token context window, and low latency without a reasoning step.

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

GPT-4o (“o” for “omni”) is our versatile, high-intelligence flagship model. It accepts both text and image inputs, and produces text outputs (including Structured Outputs). It is the best model for most tasks, and is our most capable model outside of our o-series models.