Claude Opus 4.1 vs Gemini 2.5 Pro Experimental

Compare Claude Opus 4.1 by Anthropic against Gemini 2.5 Pro Experimental by Google AI, in 17 community votes, claude opus 4.1 wins 56% of head-to-head duels, context windows of 200K vs 1.0M, tested across 23 shared challenges. Updated April 2026.

Which is better, Claude Opus 4.1 or Gemini 2.5 Pro Experimental?

Claude Opus 4.1 is the better choice overall, winning 56% of 17 blind community votes on Rival. Claude Opus 4.1 costs $15/M input tokens vs $1/M for Gemini 2.5 Pro Experimental. Context windows: 200K vs 1000K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4.1 and Gemini 2.5 Pro Experimental

Claude Opus 4.1 is made by anthropic while Gemini 2.5 Pro Experimental is from google. Claude Opus 4.1 has a 200K token context window compared to Gemini 2.5 Pro Experimental's 1000K. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $1/M for Gemini 2.5 Pro Experimental. In community voting, In 17 community votes, Claude Opus 4.1 wins 56% of head-to-head duels.

In 17 community votes, Claude Opus 4.1 wins 56% of head-to-head duels. Claude Opus 4.1 leads in Web Design, Conversation, while Gemini 2.5 Pro Experimental leads in Image Generation. Based on blind community voting from the Rival open dataset of 17+ human preference judgments for this pair.

Image Generation: Gemini 2.5 Pro Experimental wins 67% of votes
Web Design: Claude Opus 4.1 wins 80% of votes
Conversation: Claude Opus 4.1 wins 67% of votes
Our Verdict
Claude Opus 4.1
Claude Opus 4.1Winner
Gemini 2.5 Pro Experimental
Gemini 2.5 Pro ExperimentalRunner-up

Claude Opus 4.1 has the edge overall. In 17 blind votes, Claude Opus 4.1 wins 56% of the time.

Pick Claude Opus 4.1 for Web Design, Conversation. Pick Gemini 2.5 Pro Experimental for Image Generation. Gemini 2.5 Pro Experimental is 38x cheaper per token — worth considering if cost matters.

Slight edge
Writing DNA

Style Comparison

Similarity
88%

Claude Opus 4.1 uses 38.4x more emoji

Claude Opus 4.1
Gemini 2.5 Pro Experimental
61%Vocabulary54%
87wSentence Length15w
0.54Hedging0.35
5.1Bold5.6
6.7Lists3.9
0.38Emoji0.00
1.68Headings0.39
0.13Transitions0.17
Based on 17 + 18 text responses
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Claude Opus 4.1Gemini 2.5 Pro Experimental

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