GPT-5.5 vs Mistral Large 3 2512
Compare GPT-5.5 by OpenAI against Mistral Large 3 2512 by Mistral AI, tested across 54 shared challenges.
Our Verdict
GPT-5.5
Mistral Large 3 2512Runner-up
No community votes yet. On paper, GPT-5.5 has the edge — newer, bigger context window, major provider backing.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.5
Input
$5.00
Output
$30.00
Mistral Large 3 2512
Input
—
Output
—
Writing DNA
Style Comparison
Similarity
45%
Mistral Large 3 2512 uses 49.8x more emoji
GPT-5.5
Mistral Large 3 2512
58%Vocabulary50%
18wSentence Length20w
0.74Hedging0.48
2.9Bold11.6
5.1Lists5.7
0.00Emoji0.50
1.68Headings1.18
0.03Transitions0.06
Based on 26 + 24 text responses
Research
What we learned reading every model
FAQ
