Claude 3 Sonnet vs Gemini 2.5 Pro Preview 06-05

Compare Claude 3 Sonnet by Anthropic against Gemini 2.5 Pro Preview 06-05 by Google AI, tested across 7 shared challenges. Updated April 2026.

Which is better, Claude 3 Sonnet or Gemini 2.5 Pro Preview 06-05?

Claude 3 Sonnet and Gemini 2.5 Pro Preview 06-05 are both competitive models. Claude 3 Sonnet costs $3/M input tokens vs $1.25/M for Gemini 2.5 Pro Preview 06-05. Compare their real outputs side by side below.

Key Differences Between Claude 3 Sonnet and Gemini 2.5 Pro Preview 06-05

Claude 3 Sonnet is made by anthropic while Gemini 2.5 Pro Preview 06-05 is from google. On pricing, Claude 3 Sonnet costs $3/M input tokens vs $1.25/M for Gemini 2.5 Pro Preview 06-05.

Our Verdict
Gemini 2.5 Pro Preview 06-05
Gemini 2.5 Pro Preview 06-05
Claude 3 Sonnet
Claude 3 SonnetRunner-up

No community votes yet. On paper, Gemini 2.5 Pro Preview 06-05 has the edge — bigger model tier, newer, bigger context window.

Too close to call
Writing DNA

Style Comparison

Similarity
99%

Gemini 2.5 Pro Preview 06-05 uses 482.5x more bold

Claude 3 Sonnet
Gemini 2.5 Pro Preview 06-05
48%Vocabulary51%
14wSentence Length15w
0.32Hedging0.31
0.0Bold4.8
3.6Lists4.1
0.00Emoji0.00
0.00Headings0.98
0.38Transitions0.05
Based on 4 + 20 text responses
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Claude 3 SonnetGemini 2.5 Pro Preview 06-05

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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