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  5. DeepSeek Prover V2vsMercury
Updated Jun 2025

DeepSeek Prover V2vsMercury

DeepSeek Prover V2 is cheaper than Mercury at $0/M vs $10/M input tokens.

DeepSeek Prover V2 and Mercury compared across 6 shared prompts
SpecDeepSeek Prover V2Mercury
Input priceFree$10/M tokens
Output priceFree$10/M tokens
Context window164K tokens32K tokens
Parameters671BNot disclosed
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedApr 2025Jun 2025
Our Verdict
DeepSeek Prover V2
DeepSeek Prover V2
Mercury
MercuryRunner-up

Not enough votes to call it. On the specs, DeepSeek Prover V2 has the edge: bigger model tier, bigger context window, major provider backing.

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
Input
$10.00
Output
$10.00
Writing DNA

Style Comparison

Similarity
35%

Mercury uses 77.9x more hedging

DeepSeek Prover V2
Mercury
47%Vocabulary60%
8wSentence Length31w
0.00Hedging0.78
3.1Bold4.1
0.0Lists2.8
0.00Emoji0.03
0.35Headings0.88
0.19Transitions0.06
Based on 1 + 26 text responses
Research

What we learned reading every model

FAQ

Common questions

DeepSeek Prover V2 is developed by DeepSeek while Mercury is developed by Inception. DeepSeek Prover V2 has a 164K token context window vs Mercury's 32K. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.

It depends on your use case. DeepSeek Prover V2 and Mercury each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 6 challenges so you can judge which fits your needs best.

DeepSeek Prover V2 costs $0/M input tokens and Mercury costs $10/M input tokens. DeepSeek Prover V2 is $10.00/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of DeepSeek Prover V2 and Mercury across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

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