GPT-5.1-Codex-Mini

Codex / OpenAI

11scores
11benchmarks
$0.25 / $2 per 1M tokenscost in/out

Metadata

Codex Closed/API

Aliases: gpt-5.1-codex-mini, gpt-5.1-codex-mini-20251113, openai-gpt-5.1-codex-mini, openai-gpt-5.1-codex-mini-20251113, openai/gpt-5.1-codex-mini, openai/gpt-5.1-codex-mini-20251113

Benchmark Results

Benchmark Category Rank Score Sampled
Tau2-Bench Telecom Agentic 156 62.9% 2026-05-11
Terminal-Bench Hard Agentic 75 33.3% 2026-05-11
Arena AI Code Coding 63 1239 2026-05-06
SciCode Coding 62 42.6% 2026-05-11
Artificial Analysis Intelligence Index Intelligence 85 38.63 2026-05-11
Humanity's Last Exam Intelligence 88 16.9% 2026-05-11
MMLU-Pro Intelligence 76 82% 2026-05-11
AIME 2025 Math 19 91.7% 2026-05-11
Design Arena Multimodal 80 1155 2026-05-06
GPQA Diamond Reasoning 91 81.3% 2026-05-11
CritPt Science 226 0% 2026-05-11