DeepSeek Prover V2vsMercury 2.5 Preview
DeepSeek Prover V2 is cheaper than Mercury 2.5 Preview at $0/M vs $0.04/M input tokens.
| Spec | DeepSeek Prover V2 | Mercury 2.5 Preview |
|---|---|---|
| Input price | Free | $0.04/M tokens |
| Output price | Free | $0.15/M tokens |
| Context window | 164K tokens | 260K tokens |
| Weights | Open | — |
| Free API (OpenRouter) | No | No |
| Released | Apr 2025 | Aug 2026 |
Our Verdict
DeepSeek Prover V2
Mercury 2.5 Preview
Not enough votes to call it. On the specs, nothing separates them.
Too close to call
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
DeepSeek Prover V2
Input
$0.000
Output
$0.000
Mercury 2.5 Preview
Input
$0.04
Output
$0.15
Where to run it
1 host
DeepSeek Prover V2
No hosts listed on OpenRouter.
Mercury 2.5 Preview1 host
Per million tokens. Prices and uptime via OpenRouter, checked 13 Sep 2026.
Writing DNA
Style Comparison
Similarity
41%
Mercury 2.5 Preview uses 43.8x more hedging
DeepSeek Prover V2
Mercury 2.5 Preview
47%Vocabulary65%
8wSentence Length14w
0.00Hedging0.44
3.1Bold4.9
0.0Lists3.3
0.00Emoji0.00
0.35Headings0.79
0.19Transitions0.20
Based on 1 + 26 text responses
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