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Gemini 2.5 Pro Preview 06-05 vs Claude Opus 4

Compare Gemini 2.5 Pro Preview 06-05 by Google AI against Claude Opus 4 by Anthropic, in 93 community votes, gemini 2.5 pro preview 06-05 wins 53% of head-to-head duels, context windows of 1.0M vs 200K, tested across 29 shared challenges. Updated April 2026.

Which is better, Gemini 2.5 Pro Preview 06-05 or Claude Opus 4?

Gemini 2.5 Pro Preview 06-05 is the better choice overall, winning 53% of 93 blind community votes on Rival. Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens vs $15/M for Claude Opus 4. Context windows: 1049K vs 200K tokens. Compare their real outputs side by side below.

Key Differences Between Gemini 2.5 Pro Preview 06-05 and Claude Opus 4

Gemini 2.5 Pro Preview 06-05 is made by google while Claude Opus 4 is from anthropic. Gemini 2.5 Pro Preview 06-05 has a 1049K token context window compared to Claude Opus 4's 200K. On pricing, Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens vs $15/M for Claude Opus 4. In community voting, In 93 community votes, Gemini 2.5 Pro Preview 06-05 wins 53% of head-to-head duels.

In 93 community votes, Gemini 2.5 Pro Preview 06-05 wins 53% of head-to-head duels. Gemini 2.5 Pro Preview 06-05 leads in Image Generation, Analysis, Conversation, while Claude Opus 4 leads in Web Design. Based on blind community voting from the Rival open dataset of 93+ human preference judgments for this pair.

Web Design: Claude Opus 4 wins 59% of votes
Image Generation: Gemini 2.5 Pro Preview 06-05 wins 57% of votes
Analysis: Gemini 2.5 Pro Preview 06-05 wins 75% of votes
Conversation: Gemini 2.5 Pro Preview 06-05 wins 100% of votes
Reasoning: Gemini 2.5 Pro Preview 06-05 wins 100% of votes
Our Verdict
Gemini 2.5 Pro Preview 06-05
Gemini 2.5 Pro Preview 06-05Winner
Claude Opus 4
Claude Opus 4Runner-up

Gemini 2.5 Pro Preview 06-05 has the edge overall. In 93 blind votes, Gemini 2.5 Pro Preview 06-05 wins 53% of the time.

Pick Gemini 2.5 Pro Preview 06-05 for Conversation, Reasoning, Analysis. Pick Claude Opus 4 for Web Design. Gemini 2.5 Pro Preview 06-05 is 7.5x cheaper per token — worth considering if cost matters.

Slight edge
Writing DNA

Style Comparison

Similarity
91%

Claude Opus 4 uses 11.2x more emoji

Gemini 2.5 Pro Preview 06-05
Claude Opus 4
51%Vocabulary64%
15wSentence Length62w
0.31Hedging0.52
4.8Bold4.4
4.1Lists9.1
0.00Emoji0.11
0.98Headings1.87
0.05Transitions0.27
Based on 20 + 16 text responses
vs

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Gemini 2.5 Pro Preview 06-05Claude Opus 4

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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