OpenAI: GPT-5.1-Codex-Max
openai/gpt-5.1-codex-max
Context: 400,000In: $1.25/1MOut: $10.00/1M
GPT-5.1-Codex-Max is OpenAI’s latest agentic coding model, designed for long-running, high-context software development tasks. It is based on an updated version of the 5.1 reasoning stack and trained on agentic...
Intelligence
—
Coding
—
Agentic
—
Metric profile
Trend over time
No history yet — first sync only. Trends appear over time.
Classic evals (curated from model cards)
OpenAI GPT — manually maintained, may lag releases
MMLU-Pro
79.6%
GPQA Diamond
81.5%
HumanEval
96.8%
MATH-500
93%