OpenAI GPT-5.1-Codex-Max
OpenAI GPT-5.1-Codex-Max is an AI model published by OpenAI, released on 2025-11-19, for Coding model, and 400K tokens context length, with no open-source license.
Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology
GPT-5.1-Codex-Max currently shows benchmark results led by Terminal-Bench (1 / 35, score 58.10), SWE-bench Verified (22 / 103, score 76.80). This page also consolidates core specs, context limits, and API pricing so you can evaluate the model from benchmark results and deployment constraints together.
OpenAI GPT-5.1-Codex-Max is an AI model published by OpenAI, released on 2025-11-19, for Coding model, and 400K tokens context length, with no open-source license.
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