Claude 3.7 Thinking SonnetvsGemini 2.5 Pro (I/O Edition)
Claude 3.7 Thinking Sonnet wins 90% of 33 blind community votes against Gemini 2.5 Pro (I/O Edition) on Rival.
| Spec | Claude 3.7 Thinking Sonnet | Gemini 2.5 Pro (I/O Edition) |
|---|---|---|
| Win rate | 90% | 11% |
| Input price | $6/M tokens | $1.25/M tokens |
| Output price | $30/M tokens | $10/M tokens |
| Context window | 200K tokens | — |
| Released | Feb 2025 | May 2025 |
Our Verdict
Claude 3.7 Thinking SonnetWinner
Gemini 2.5 Pro (I/O Edition)Runner-up
Pick Claude 3.7 Thinking Sonnet. In 33 blind votes, Claude 3.7 Thinking Sonnet wins 90% of the time. That's not luck.
Claude 3.7 Thinking Sonnet wins Web Design and Reasoning. Gemini 2.5 Pro (I/O Edition) costs 3.0x less per token.
Clear winner
API pricing
Cost per 1M tokens
Claude 3.7 Thinking Sonnet
Input
$6.00
Output
$30.00
Gemini 2.5 Pro (I/O Edition)
Input
$1.25
4.8× cheaper
Output
$10.00
3.0× cheaper
Gemini 2.5 Pro (I/O Edition) is cheaper on both — 4.8× input, 3.0× output
Writing DNA
Style Comparison
Similarity
39%
Claude 3.7 Thinking Sonnet uses 17.7x more transitions
Claude 3.7 Thinking Sonnet
Gemini 2.5 Pro (I/O Edition)
61%Vocabulary58%
49wSentence Length16w
0.64Hedging0.38
2.2Bold5.8
4.5Lists5.0
0.00Emoji0.00
1.81Headings0.63
0.21Transitions0.01
Based on 21 + 16 text responses
Research
What we learned reading every model
FAQ
Common questions
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