Claude 3 OpusvsGemini 2.5 Flash Preview (thinking)
Gemini 2.5 Flash Preview (thinking) is cheaper than Claude 3 Opus at $0.175/M vs $15/M input tokens.
| Spec | Claude 3 Opus | Gemini 2.5 Flash Preview (thinking) |
|---|---|---|
| Input price | $15/M tokens | $0.175/M tokens |
| Output price | $75/M tokens | $3.5/M tokens |
| Context window | 200K tokens | 1.0M tokens |
| Free API (OpenRouter) | No | No |
| Released | Mar 2024 | Apr 2025 |
Our Verdict
Claude 3 Opus
Gemini 2.5 Flash Preview (thinking)
Not enough votes to call it. On the specs, nothing separates them.
Gemini 2.5 Flash Preview (thinking) costs 21x less per token.
Too close to call
API pricing
Cost per 1M tokens
Claude 3 Opus
Input
$15.00
Output
$75.00
Gemini 2.5 Flash Preview (thinking)
Input
$0.17
86× cheaper
Output
$3.50
21× cheaper
Gemini 2.5 Flash Preview (thinking) is cheaper on both: 86× input, 21× output.
Writing DNA
Style Comparison
Similarity
84%
Gemini 2.5 Flash Preview (thinking) uses 443.3x more bold
Claude 3 Opus
Gemini 2.5 Flash Preview (thinking)
54%Vocabulary53%
14wSentence Length14w
0.48Hedging0.38
0.0Bold4.4
3.0Lists4.1
0.00Emoji0.00
0.00Headings0.00
0.06Transitions0.24
Based on 3 + 7 text responses
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