Mistral Devstral Medium vs GPT-4.5
Compare Mistral Devstral Medium by Mistral AI against GPT-4.5 by OpenAI, tested across 25 shared challenges.
Our Verdict
GPT-4.5
Mistral Devstral MediumRunner-up
No community votes yet. On paper, GPT-4.5 has the edge — bigger model tier, bigger context window, major provider backing.
Mistral Devstral Medium is 75x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Mistral Devstral Medium
Input
$0.40
188× cheaper
Output
$2.00
75× cheaper
GPT-4.5
Input
$75.00
Output
$150.00
Mistral Devstral Medium is cheaper on both — 188× input, 75× output
Writing DNA
Style Comparison
Similarity
66%
GPT-4.5 uses 6.8x more headings
Mistral Devstral Medium
GPT-4.5
50%Vocabulary63%
17wSentence Length16w
0.56Hedging0.57
4.5Bold4.7
5.3Lists6.4
0.00Emoji0.00
0.19Headings1.30
0.32Transitions0.54
Based on 21 + 11 text responses
Research
What we learned reading every model
FAQ
