OpenAI: GPT-5.1-Codex-Mini
openai/gpt-5.1-codex-mini
Context: 400,000In: $0.25/1MOut: $2.00/1MUpdated 2026-08-05
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
Intelligence
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Coding
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Agentic
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Metric profile
Trend over time
Intelligence
—
Coding
—
Agentic
—
Only 1 snapshot so far (data refreshes daily) — the trend line appears after the 2nd snapshot.
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%
Design Arena (ELO by category)
| Category | ELO | Win rate | Rank |
|---|---|---|---|
| asciiart | 1142 | 43% | #46 |
| gamedev | 1137 | 43.4% | #71 |
| website | 1134 | 42.8% | #82 |
| dataviz | 1124 | 40.7% | #79 |
| codecategories | 1123 | 41.5% | #82 |
| uicomponent | 1116 | 41% | #75 |
| 3d | 1044 | 32.8% | #92 |
| svg | 1025 | 35.3% | #72 |