Claude Sonnet 4.5 vs Gemini 3 Pro Preview

Compare Claude Sonnet 4.5 by Anthropic against Gemini 3 Pro Preview by Google AI, in 84 community votes, gemini 3 pro preview wins 70% of head-to-head duels, tested across 41 shared challenges. Updated February 2026.

In 84 community votes, Gemini 3 Pro Preview wins 70% of head-to-head duels. Gemini 3 Pro Preview leads in Web Design, Reasoning, Image Generation. Based on blind community voting from the RIVAL open dataset of 84+ human preference judgments for this pair.

Web Design: Gemini 3 Pro Preview wins 69% of votes
Reasoning: Gemini 3 Pro Preview wins 65% of votes
Image Generation: Gemini 3 Pro Preview wins 80% of votes
Conversation: Claude Sonnet 4.5 and Gemini 3 Pro Preview are tied
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