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 context length, with a 76.80 score on SWE-bench Verified.
Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology
Model basics
Open source & experience
Official resources
API details
| Type | Condition | Input | Output |
|---|---|---|---|
| Text | - | $1.25/ 1M | $10.00/ 1M |
| Type | TTL | Write | Read |
|---|---|---|---|
| Text | - | $0.0000/ 1M | $0.125/ 1M |
Benchmark Results
GPT-5.1-Codex-Max currently shows benchmark results led by Terminal-Bench (1 / 35, score 58.10), LiveBench (22 / 115, score 73.98), SWE-bench Verified (29 / 111, 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.
Coding and Software Engineer
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Publisher
Model Overview
OpenAI GPT-5.1-Codex-Max is an AI model published by OpenAI, released on 2025-11-19, for Coding model, and 400K context length, with a 76.80 score on SWE-bench Verified.
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