Mistral Devstral Medium
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Mistral Devstral Medium vs GPT-5 Codex
Compare Mistral Devstral Medium by Mistral AI against GPT-5 Codex by OpenAI, tested across 50 shared challenges. Updated April 2026.
Which is better, Mistral Devstral Medium or GPT-5 Codex?
Mistral Devstral Medium and GPT-5 Codex are both competitive models. Compare their real outputs side by side below.
Key Differences Between Mistral Devstral Medium and GPT-5 Codex
Mistral Devstral Medium is made by mistral while GPT-5 Codex is from openai.
Our Verdict
GPT-5 Codex
Mistral Devstral MediumRunner-up
No community votes yet. On paper, GPT-5 Codex has the edge — bigger model tier, newer, major provider backing.
Slight edge
Writing DNA
Style Comparison
Similarity
100%
GPT-5 Codex uses 14.6x more emoji
Mistral Devstral Medium
GPT-5 Codex
50%Vocabulary64%
17wSentence Length17w
0.56Hedging0.38
4.5Bold2.3
5.3Lists3.5
0.00Emoji0.15
0.19Headings0.49
0.32Transitions0.05
Based on 21 + 13 text responses
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