GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...
Details
| Field | Value |
|---|---|
| id | gpt-5.4-2026-03-05 |
| context_length | 1050000 |
| max_input_tokens | 922000 |
| max_output_tokens | 128000 |
| quantization | unknown |