Claude Sonnet 4.5 vs Gemini 2.5 Pro Preview 06-05

Compare Claude Sonnet 4.5 by Anthropic against Gemini 2.5 Pro Preview 06-05 by Google AI, in 22 community votes, claude sonnet 4.5 wins 67% of head-to-head duels, context windows of 200K vs 1.0M, tested across 32 shared challenges. Updated February 2026.

In 22 community votes, Claude Sonnet 4.5 wins 67% of head-to-head duels. Claude Sonnet 4.5 leads in Web Design, Image Generation, Conversation, while Gemini 2.5 Pro Preview 06-05 leads in Analysis. Based on blind community voting from the RIVAL open dataset of 22+ human preference judgments for this pair.

Web Design: Claude Sonnet 4.5 wins 83% of votes
Image Generation: Claude Sonnet 4.5 wins 60% of votes
Conversation: Claude Sonnet 4.5 wins 75% of votes
Reasoning: Claude Sonnet 4.5 wins 100% of votes
Analysis: Gemini 2.5 Pro Preview 06-05 wins 100% of votes
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