Claude Opus 4.8 vs Gemini 3.1 Pro Preview
Compare Claude Opus 4.8 by Anthropic against Gemini 3.1 Pro Preview by Google AI, context windows of 1.0M vs 1.0M, tested across 53 shared challenges.
Our Verdict
Claude Opus 4.8
Gemini 3.1 Pro Preview
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
API pricing
Cost per 1M tokens
Claude Opus 4.8
Input
$5.00
Output
$25.00
Gemini 3.1 Pro Preview
Input
$2.00
2.5× cheaper
Output
$12.00
2.1× cheaper
Gemini 3.1 Pro Preview is cheaper on both — 2.5× input, 2.1× output
Writing DNA
Style Comparison
Similarity
40%
Claude Opus 4.8 uses 77.6x more emoji
Claude Opus 4.8
Gemini 3.1 Pro Preview
60%Vocabulary54%
19wSentence Length18w
0.46Hedging0.29
4.7Bold4.9
3.2Lists3.3
0.78Emoji0.00
1.15Headings0.72
0.04Transitions0.14
Based on 27 + 23 text responses
Research
What we learned reading every model
FAQ
