Claude Opus 4.1 vs Gemini 3 Pro Preview

Compare Claude Opus 4.1 by Anthropic against Gemini 3 Pro Preview by Google AI, in 1 community votes, claude opus 4.1 wins 100% of head-to-head duels, tested across 27 shared challenges. Updated April 2026.

Which is better, Claude Opus 4.1 or Gemini 3 Pro Preview?

Claude Opus 4.1 is the better choice overall, winning 100% of 1 blind community votes on Rival. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4.1 and Gemini 3 Pro Preview

Claude Opus 4.1 is made by anthropic while Gemini 3 Pro Preview is from google. In community voting, In 1 community votes, Claude Opus 4.1 wins 100% of head-to-head duels.

In 1 community votes, Claude Opus 4.1 wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 1+ human preference judgments for this pair.

Our Verdict
Claude Opus 4.1
Claude Opus 4.1Winner
Gemini 3 Pro Preview
Gemini 3 Pro PreviewRunner-up

Pick Claude Opus 4.1. In 1 blind votes, Claude Opus 4.1 wins 100% of the time. That's not luck.

Clear winner
Writing DNA

Style Comparison

Similarity
96%

Claude Opus 4.1 uses 38.4x more emoji

Claude Opus 4.1
Gemini 3 Pro Preview
61%Vocabulary58%
87wSentence Length17w
0.54Hedging0.37
5.1Bold7.7
6.7Lists4.8
0.38Emoji0.00
1.68Headings0.90
0.13Transitions0.25
Based on 17 + 23 text responses
vs

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Claude Opus 4.1Gemini 3 Pro Preview

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
Free preview13 of 58 slides
FAQ

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