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 27 shared challenges. Updated June 2026.
Which is better, Claude Sonnet 4 or Gemini 2.5 Flash Preview?
Claude Sonnet 4 and Gemini 2.5 Flash Preview are closely matched based on 6 community votes. Claude Sonnet 4 costs $3/M input tokens vs $0.15/M for Gemini 2.5 Flash Preview. Context windows: 200K vs 1049K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Sonnet 4 and Gemini 2.5 Flash Preview
Claude Sonnet 4 is made by anthropic while Gemini 2.5 Flash Preview is from google. Claude Sonnet 4 has a 200K token context window compared to Gemini 2.5 Flash Preview's 1049K. On pricing, Claude Sonnet 4 costs $3/M input tokens vs $0.15/M for Gemini 2.5 Flash Preview. In community voting, In 6 community votes, Claude Sonnet 4 and Gemini 2.5 Flash Preview are closely matched.
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.
Per 1M tokens
Gemini 2.5 Flash Preview is cheaper on both — 20× input, 25× output
Too close to call. Pick based on your use case.
Pick Claude Sonnet 4 for Image Generation. Pick Gemini 2.5 Flash Preview for Web Design. Gemini 2.5 Flash Preview is 25x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Sonnet 4 uses 87.9x more emoji
