GPT-5 Pro vs Mistral Medium 3
Compare GPT-5 Pro by OpenAI against Mistral Medium 3 by Mistral AI, context windows of 400K vs 131K, tested across 42 shared challenges.
Our Verdict
GPT-5 Pro
Mistral Medium 3Runner-up
No community votes yet. On paper, GPT-5 Pro has the edge — bigger model tier, newer, bigger context window, major provider backing.
Mistral Medium 3 is 60x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
GPT-5 Pro
Input
$15.00
Output
$120.00
Mistral Medium 3
Input
$0.40
38× cheaper
Output
$2.00
60× cheaper
Mistral Medium 3 is cheaper on both — 38× input, 60× output
Writing DNA
Style Comparison
Similarity
17%
Mistral Medium 3 uses 859.1x more bold
GPT-5 Pro
Mistral Medium 3
65%Vocabulary57%
15wSentence Length17w
0.32Hedging0.73
0.0Bold8.6
2.9Lists6.5
0.00Emoji0.06
0.00Headings1.18
0.01Transitions0.15
Based on 11 + 15 text responses
Research
What we learned reading every model
FAQ
Common questions
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