GPT-5.3-Codex vs Mistral Large 3 2512
Compare GPT-5.3-Codex by OpenAI against Mistral Large 3 2512 by Mistral AI, tested across 53 shared challenges.
Our Verdict
GPT-5.3-Codex
Mistral Large 3 2512Runner-up
No community votes yet. On paper, GPT-5.3-Codex has the edge — newer, bigger context window, major provider backing.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.3-Codex
Input
$1.75
Output
$14.00
Mistral Large 3 2512
Input
—
Output
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Writing DNA
Style Comparison
Similarity
67%
Mistral Large 3 2512 uses 3.2x more emoji
GPT-5.3-Codex
Mistral Large 3 2512
65%Vocabulary50%
23wSentence Length20w
0.51Hedging0.48
6.5Bold11.6
6.2Lists5.7
0.16Emoji0.50
1.90Headings1.18
0.03Transitions0.06
Based on 23 + 24 text responses
Research
What we learned reading every model
FAQ
