Mistral Devstral Small 1.1 vs OpenAI o3
Compare Mistral Devstral Small 1.1 by Mistral AI against OpenAI o3 by OpenAI, tested across 54 shared challenges.
Our Verdict
OpenAI o3
Mistral Devstral Small 1.1Runner-up
No community votes yet. On paper, OpenAI o3 has the edge — bigger model tier, major provider backing.
Mistral Devstral Small 1.1 is 133x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Mistral Devstral Small 1.1
Input
$0.10
100× cheaper
Output
$0.30
133× cheaper
OpenAI o3
Input
$10.00
Output
$40.00
Mistral Devstral Small 1.1 is cheaper on both — 100× input, 133× output
Writing DNA
Style Comparison
Similarity
33%
OpenAI o3 uses 7.8x more headings
Mistral Devstral Small 1.1
OpenAI o3
50%Vocabulary68%
17wSentence Length14w
0.56Hedging0.26
4.3Bold0.7
5.7Lists3.0
0.00Emoji0.00
0.05Headings0.38
0.34Transitions0.12
Based on 21 + 16 text responses
Research
What we learned reading every model
FAQ
