Mistral Devstral Small 1.1 vs GPT-4.5
Compare Mistral Devstral Small 1.1 by Mistral AI against GPT-4.5 by OpenAI, tested across 25 shared challenges.
Our Verdict
GPT-4.5
Mistral Devstral Small 1.1Runner-up
No community votes yet. On paper, GPT-4.5 has the edge — bigger model tier, bigger context window, major provider backing.
Mistral Devstral Small 1.1 is 500x 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
750× cheaper
Output
$0.30
500× cheaper
GPT-4.5
Input
$75.00
Output
$150.00
Mistral Devstral Small 1.1 is cheaper on both — 750× input, 500× output
Writing DNA
Style Comparison
Similarity
69%
GPT-4.5 uses 26.8x more headings
Mistral Devstral Small 1.1
GPT-4.5
50%Vocabulary63%
17wSentence Length16w
0.56Hedging0.57
4.3Bold4.7
5.7Lists6.4
0.00Emoji0.00
0.05Headings1.30
0.34Transitions0.54
Based on 21 + 11 text responses
Research
What we learned reading every model
FAQ
