GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K...
Details
| Field | Value |
|---|---|
| id | gpt-5.4-pro-2026-03-05 |
| context_length | 1050000 |
| max_input_tokens | 922000 |
| max_output_tokens | 128000 |
| quantization | unknown |