Compare these two models side-by-side to help you make the best choice for your needs
GPT-5.2 Chat (AKA Instant) is the fast, lightweight member of the 5.2 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on...
Image and document understanding
GPT-5.2 Pro is OpenAI’s most advanced model, offering major improvements in agentic coding and long context performance over GPT-5 Pro. It is optimized for complex tasks that require step-by-step reasoning,...
Image and document understanding
| Feature | OpenAI: GPT-5.2 Chat | OpenAI: GPT-5.2 Pro |
|---|---|---|
| Provider | OpenRouter | OpenRouter |
| Context Length | 128,000 tokens | 400,000 tokens |
| Input Price | $1.75/M | $21.00/M |
| Output Price | $14.00/M | $168.00/M |
| Vision Support | Yes | Yes |
| Higher cost | Yes | Yes |
| Capabilities | TextVision | TextVision |