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GPT-5.1-Codex-Mini

Closed

GPT-5.1 Codex mini (high) is an AI model from OpenAI.

Publisher
OpenAI
Family
GPT
Context
400K
Input
Output
Released
13 Nov 2025

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Notes

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Context
400K
Input
$0.25
/1M tok
Output
$2
/1M tok
Blended
$0.69
#275/ 414/1M · 3:1
Speed
221
#17/ 414tok/s
Cache read
$0.02
0.10x input

Price & speed via Artificial Analysis · ranked across tracked models · caching via OpenRouter

Reported on 17 evals across 7 domains - best 91.7% on AIME 2025: Problems from the American Invitational Mathematics Examination · #9 of 207

Reported eval scores

17