Claude Opus 4vsGemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview is cheaper than Claude Opus 4 at $0.25/M vs $15/M input tokens.
| Spec | Claude Opus 4 | Gemini 3.1 Flash Lite Preview |
|---|---|---|
| Input price | $15/M tokens | $0.25/M tokens |
| Output price | $75/M tokens | $1.5/M tokens |
| Context window | 200K tokens | 1.0M tokens |
| Released | May 2025 | Mar 2026 |
| GPQA Diamond | 74.9% (w/o extended thinking) | 86.9% |
Our Verdict
Claude Opus 4
Gemini 3.1 Flash Lite Preview
Not enough votes to call it. On the specs, nothing separates them.
Gemini 3.1 Flash Lite Preview costs 50x less per token.
Too close to call
API pricing
Cost per 1M tokens
Claude Opus 4
Input
$15.00
Output
$75.00
Gemini 3.1 Flash Lite Preview
Input
$0.25
60× cheaper
Output
$1.50
50× cheaper
Gemini 3.1 Flash Lite Preview is cheaper on both — 60× input, 50× output
Writing DNA
Style Comparison
Similarity
34%
Claude Opus 4 uses 11.2x more emoji
Claude Opus 4
Gemini 3.1 Flash Lite Preview
64%Vocabulary56%
62wSentence Length18w
0.52Hedging0.28
4.4Bold5.4
9.1Lists3.9
0.11Emoji0.00
1.87Headings0.95
0.27Transitions0.07
Based on 16 + 23 text responses
Research
What we learned reading every model
FAQ
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