Claude 3 OpusvsGemini 2.5 Pro Experimental
Gemini 2.5 Pro Experimental is cheaper than Claude 3 Opus at $1/M vs $15/M input tokens.
| Spec | Claude 3 Opus | Gemini 2.5 Pro Experimental |
|---|---|---|
| Input price | $15/M tokens | $1/M tokens |
| Output price | $75/M tokens | $2/M tokens |
| Context window | 200K tokens | 1.0M tokens |
| Parameters | Not disclosed | Not disclosed |
| Weights | — | Closed |
| Free API (OpenRouter) | No | No |
| Released | Mar 2024 | Mar 2025 |
| MMLU | 86.8% | 90.0% |
Our Verdict
Gemini 2.5 Pro Experimental
Claude 3 OpusRunner-up
Not enough votes to call it. On the specs, Gemini 2.5 Pro Experimental has the edge: newer, bigger context window.
Gemini 2.5 Pro Experimental costs 38x 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 Pro Experimental
Input
$1.00
15× cheaper
Output
$2.00
38× cheaper
Gemini 2.5 Pro Experimental is cheaper on both: 15× input, 38× output.
Where to run it
2 hosts, cheapest first
Claude 3 Opus
No hosts listed on OpenRouter.
Gemini 2.5 Pro Experimental2 hosts
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
45%
Gemini 2.5 Pro Experimental uses 557.3x more bold
Claude 3 Opus
Gemini 2.5 Pro Experimental
54%Vocabulary54%
14wSentence Length15w
0.48Hedging0.35
0.0Bold5.6
3.0Lists3.9
0.00Emoji0.00
0.00Headings0.39
0.06Transitions0.17
Based on 3 + 18 text responses
Research
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FAQ
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