Artificial Analysis · Intelligence IndexBenchmarks, as Artificial Analysis ran them- 81%GPQA Diamond
- 19%Humanity's Last Exam
- 33%Terminal-Bench Hard
- 84%LiveCodeBench
- 92%AIME 2025
- 63%τ²-Bench
- 82%MMLU-Pro
- 68%IFBench
- 67%Long context reasoning
- Per 1M tokens
- $0.25 in · $2.00 out
- Context
- 400K tokens
Against list priceRating for the price
GPT-5.1-Codex-Mini · 1,244 · $0.69 per 1M tokens ($0.25 in, $2.00 out) · 400K context
GPT-5.1-Codex-Mini · 1,244 · $0.69 per 1M tokens ($0.25 in, $2.00 out) · 400K context
LMArena, CC BY 4.0, 19 October 2026 · prices OpenRouter, list price blended 3:1, read 21 October 2026 · Artificial Analysis, read 21 October 2026
GPT-5.1-Codex-Mini