Claude Sonnet 4 vs Gemini 2.5 Flash Preview

Compare Claude Sonnet 4 by Anthropic against Gemini 2.5 Flash Preview by Google AI, in 6 community votes, claude sonnet 4 and gemini 2.5 flash preview are closely matched, context windows of 200K vs 1.0M, tested across 16 shared challenges. Updated February 2026.

In 6 community votes, Claude Sonnet 4 and Gemini 2.5 Flash Preview are closely matched. Claude Sonnet 4 leads in Image Generation, while Gemini 2.5 Flash Preview leads in Web Design. Based on blind community voting from the RIVAL open dataset of 6+ human preference judgments for this pair.

Image Generation: Claude Sonnet 4 wins 100% of votes
Web Design: Gemini 2.5 Flash Preview wins 100% of votes
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