What this page answers
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,...
- OpenAI · openai/gpt-5.2-pro
- text+image+file->text · global model route
- 400,000 context · $21 input
Before connecting
Do not stop at the model name. Before integration, verify base URL, protocol, visible models, parameters, and limits together.
- supports include_reasoning
- supports max_tokens
- supports reasoning
- supports response_format
- supports seed
Next action
The goal is to catch search demand, then move users into model profiles, provider profiles, and key checking.
- Check whether the model fits the use case
- Then verify key permission and callable models
