GPT-5.1-Codex-Max
OpenAILanguage modeling/generation
The GPT-5.1-Codex-Max model is a language modeling/generation model from OpenAI.
LLM pricing & performance
Full LLM page →GPT-5.1-Codex-Max is available via API — live cost, context, and benchmark data:
Input / 1M
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Output / 1M
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Context
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Tokens/sec
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LiveBench: 74.4
Details
- Provider
- OpenAI
- Task
- Language modeling/generation
- Released
- 2025-11-19
- Open weights
- No