Gemini 3.6 Flash vs GPT-5.1-Codex-Mini
Compare Gemini 3.6 Flash by Google AI against GPT-5.1-Codex-Mini by OpenAI, context windows of 1.0M vs 400K, tested across 54 shared challenges.
Our Verdict
Gemini 3.6 Flash
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
Gemini 3.6 Flash
Input
$1.50
Output
$7.50
GPT-5.1-Codex-Mini
Input
$1.50
Output
$6.00
1.3× cheaper
Writing DNA
Style Comparison
Similarity
51%
Gemini 3.6 Flash uses 4.2x more emoji
Gemini 3.6 Flash
GPT-5.1-Codex-Mini
60%Vocabulary65%
19wSentence Length20w
0.13Hedging0.56
5.4Bold3.3
2.7Lists3.4
0.04Emoji0.00
0.99Headings0.08
0.07Transitions0.05
Based on 27 + 13 text responses
Research
What we learned reading every model
FAQ
