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,...
Details
| Field | Value |
|---|---|
| id | gpt-5.2-pro-2025-12-11 |
| context_length | 400000 |
| max_input_tokens | 272000 |
| max_output_tokens | 128000 |
| quantization | unknown |