Claude Opus 4vsGemini 3 Flash Preview
Gemini 3 Flash Preview is cheaper than Claude Opus 4 at $0.5/M vs $15/M input tokens.
| Spec | Claude Opus 4 | Gemini 3 Flash Preview |
|---|---|---|
| Input price | $15/M tokens | $0.5/M tokens |
| Output price | $75/M tokens | $3/M tokens |
| Context window | 200K tokens | 1.0M tokens |
| Released | May 2025 | Dec 2025 |
| SWE-bench Verified | 72.5% | 78.0% |
Our Verdict
Claude Opus 4
Gemini 3 Flash Preview
Not enough votes to call it. On the specs, nothing separates them.
Gemini 3 Flash Preview costs 25x less per token.
Too close to call
API pricing
Cost per 1M tokens
Claude Opus 4
Input
$15.00
Output
$75.00
Gemini 3 Flash Preview
Input
$0.50
30× cheaper
Output
$3.00
25× cheaper
Gemini 3 Flash Preview is cheaper on both — 30× input, 25× output
Writing DNA
Style Comparison
Similarity
38%
Claude Opus 4 uses 118.4x more emoji
Claude Opus 4
Gemini 3 Flash Preview
65%Vocabulary57%
57wSentence Length18w
0.67Hedging0.41
3.8Bold7.4
6.8Lists4.2
1.18Emoji0.00
1.42Headings0.77
0.22Transitions0.08
Based on 27 + 28 text responses
Research
What we learned reading every model
FAQ
Common questions
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