GPT-5.1 Codex Max vs GPT-5.1-Codex-Mini
Compare GPT-5.1 Codex Max and GPT-5.1-Codex-Mini, both from OpenAI, tested across 53 shared challenges.
Our Verdict
GPT-5.1 Codex Max
GPT-5.1-Codex-Mini
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.1 Codex Max
Input
—
Output
—
GPT-5.1-Codex-Mini
Input
$1.50
Output
$6.00
Writing DNA
Style Comparison
Similarity
73%
GPT-5.1-Codex-Mini uses 1.8x more transitions
GPT-5.1 Codex Max
GPT-5.1-Codex-Mini
60%Vocabulary65%
16wSentence Length20w
0.36Hedging0.56
2.3Bold3.3
4.2Lists3.4
0.00Emoji0.00
0.12Headings0.08
0.03Transitions0.05
Based on 13 + 13 text responses
Research
What we learned reading every model
FAQ
