Claude Opus 4.5 vs Mistral: Devstral 2 2512

Compare Claude Opus 4.5 by Anthropic against Mistral: Devstral 2 2512 by Mistral AI, in 27 community votes, claude opus 4.5 wins 70% of head-to-head duels, tested across 35 shared challenges. Updated February 2026.

In 27 community votes, Claude Opus 4.5 wins 70% of head-to-head duels. Claude Opus 4.5 leads in Web Design, Image Generation. Based on blind community voting from the RIVAL open dataset of 27+ human preference judgments for this pair.

Web Design: Claude Opus 4.5 wins 65% of votes
Image Generation: Claude Opus 4.5 wins 100% of votes
Reasoning: Claude Opus 4.5 and Mistral: Devstral 2 2512 are tied
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