DeepSeek V3.1 vs Claude Opus 4

Compare DeepSeek V3.1 by DeepSeek against Claude Opus 4 by Anthropic, in 6 community votes, claude opus 4 wins 67% of head-to-head duels, context windows of 164K vs 200K, tested across 32 shared challenges. Updated February 2026.

In 6 community votes, Claude Opus 4 wins 67% of head-to-head duels. Claude Opus 4 leads in Web Design. Based on blind community voting from the RIVAL open dataset of 6+ human preference judgments for this pair.

Web Design: Claude Opus 4 wins 67% of votes
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