Claude Opus 4.5 vs Claude Opus 4.6

Compare Claude Opus 4.5 and Claude Opus 4.6, both from Anthropic, in 346 community votes, claude opus 4.6 wins 70% of head-to-head duels, tested across 52 shared challenges. Updated February 2026.

In 346 community votes, Claude Opus 4.6 wins 70% of head-to-head duels. Claude Opus 4.6 leads in Web Design, Image Generation, Reasoning. Based on blind community voting from the RIVAL open dataset of 346+ human preference judgments for this pair.