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Claude Opus 4.6 vs Gemini 2.5 Pro Experimental

Compare Claude Opus 4.6 by Anthropic against Gemini 2.5 Pro Experimental by Google AI, in 20 community votes, claude opus 4.6 wins 88% of head-to-head duels, context windows of 1.0M vs 1.0M, tested across 42 shared challenges. Updated April 2026.

Which is better, Claude Opus 4.6 or Gemini 2.5 Pro Experimental?

Claude Opus 4.6 is the better choice overall, winning 88% of 20 blind community votes on Rival. Claude Opus 4.6 costs $5/M input tokens vs $1/M for Gemini 2.5 Pro Experimental. Context windows: 1000K vs 1000K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4.6 and Gemini 2.5 Pro Experimental

Claude Opus 4.6 is made by anthropic while Gemini 2.5 Pro Experimental is from google. Claude Opus 4.6 has a 1000K token context window compared to Gemini 2.5 Pro Experimental's 1000K. On pricing, Claude Opus 4.6 costs $5/M input tokens vs $1/M for Gemini 2.5 Pro Experimental. In community voting, In 20 community votes, Claude Opus 4.6 wins 88% of head-to-head duels.

In 20 community votes, Claude Opus 4.6 wins 88% of head-to-head duels. Claude Opus 4.6 leads in Web Design, Image Generation, Reasoning. Based on blind community voting from the Rival open dataset of 20+ human preference judgments for this pair.

Web Design: Claude Opus 4.6 wins 88% of votes
Image Generation: Claude Opus 4.6 wins 100% of votes
Reasoning: Claude Opus 4.6 wins 100% of votes
Conversation: Claude Opus 4.6 and Gemini 2.5 Pro Experimental are tied
Our Verdict
Claude Opus 4.6
Claude Opus 4.6Winner
Gemini 2.5 Pro Experimental
Gemini 2.5 Pro ExperimentalRunner-up

Pick Claude Opus 4.6. In 20 blind votes, Claude Opus 4.6 wins 88% of the time. That's not luck.

Claude Opus 4.6 particularly excels in Image Generation, Reasoning, Web Design. Gemini 2.5 Pro Experimental is 13x cheaper per token — worth considering if cost matters.

Clear winner
Writing DNA

Style Comparison

Similarity
88%

Claude Opus 4.6 uses 20.7x more emoji

Claude Opus 4.6
Gemini 2.5 Pro Experimental
53%Vocabulary54%
35wSentence Length15w
0.68Hedging0.35
5.2Bold5.6
2.9Lists3.9
0.21Emoji0.00
1.34Headings0.39
0.03Transitions0.17
Based on 23 + 18 text responses
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Claude Opus 4.6Gemini 2.5 Pro Experimental

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
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