Claude Sonnet 4 vs Mistral Devstral Medium

Compare Claude Sonnet 4 by Anthropic against Mistral Devstral Medium by Mistral AI, in 16 community votes, claude sonnet 4 wins 73% of head-to-head duels, tested across 34 shared challenges. Updated April 2026.

Which is better, Claude Sonnet 4 or Mistral Devstral Medium?

Claude Sonnet 4 is the better choice overall, winning 73% of 16 blind community votes on Rival. Claude Sonnet 4 costs $3/M input tokens vs $0.4/M for Mistral Devstral Medium. Compare their real outputs side by side below.

Key Differences Between Claude Sonnet 4 and Mistral Devstral Medium

Claude Sonnet 4 is made by anthropic while Mistral Devstral Medium is from mistral. On pricing, Claude Sonnet 4 costs $3/M input tokens vs $0.4/M for Mistral Devstral Medium. In community voting, In 16 community votes, Claude Sonnet 4 wins 73% of head-to-head duels.

In 16 community votes, Claude Sonnet 4 wins 73% of head-to-head duels. Claude Sonnet 4 leads in Web Design, Image Generation. Based on blind community voting from the Rival open dataset of 16+ human preference judgments for this pair.

Web Design: Claude Sonnet 4 wins 83% of votes
Image Generation: Claude Sonnet 4 wins 100% of votes
Our Verdict
Claude Sonnet 4
Claude Sonnet 4Winner
Mistral Devstral Medium
Mistral Devstral MediumRunner-up

Pick Claude Sonnet 4. In 16 blind votes, Claude Sonnet 4 wins 73% of the time. That's not luck.

Claude Sonnet 4 particularly excels in Image Generation, Web Design. Mistral Devstral Medium is 7.5x cheaper per token — worth considering if cost matters.

Clear winner
Writing DNA

Style Comparison

Similarity
92%

Claude Sonnet 4 uses 87.9x more emoji

Claude Sonnet 4
Mistral Devstral Medium
62%Vocabulary50%
111wSentence Length17w
0.40Hedging0.56
5.0Bold4.5
9.3Lists5.3
0.88Emoji0.00
2.16Headings0.19
0.33Transitions0.32
Based on 17 + 21 text responses
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Claude Sonnet 4Mistral Devstral Medium

279 AI models invented the same fake scientist.

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AI Hallucination Index 2026
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