GPT-5.1-Codex-Mini vs Mistral Large 2
Compare GPT-5.1-Codex-Mini by OpenAI against Mistral Large 2 by Mistral AI, context windows of 400K vs 128K, tested across 23 shared challenges.
Our Verdict
GPT-5.1-Codex-Mini
Mistral Large 2Runner-up
No community votes yet. On paper, GPT-5.1-Codex-Mini has the edge — bigger model tier, newer, bigger context window, major provider backing.
GPT-5.1-Codex-Mini is 4.0x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
GPT-5.1-Codex-Mini
Input
$1.50
5.3× cheaper
Output
$6.00
4.0× cheaper
Mistral Large 2
Input
$8.00
Output
$24.00
GPT-5.1-Codex-Mini is cheaper on both — 5.3× input, 4.0× output
Writing DNA
Style Comparison
Similarity
27%
Mistral Large 2 uses 79.6x more emoji
GPT-5.1-Codex-Mini
Mistral Large 2
65%Vocabulary43%
20wSentence Length21w
0.56Hedging0.39
3.3Bold14.4
3.4Lists7.4
0.00Emoji0.80
0.08Headings1.41
0.05Transitions0.01
Based on 13 + 10 text responses
Research
What we learned reading every model
FAQ
