DeepSeek Prover V2 vs 
Mercury 2
DeepSeek Prover V2 is cheaper than Mercury 2 at $0/M vs $0.25/M input tokens.
Pokémon Battle UI Recreation
Pokémon battle screen you can actually click. One HTML file.
Loading the build
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Which answer wins?
Written rounds
1 promptThree minutes of stand-up. Puns are banned.
DeepSeek Prover V2: 3-Minute Stand-Up Comedy Routine Opening: Hey everyone! How's it going? You know, I've been thinking a lot about relationships lately. Not because I'm in one, but because I'm not. And that's the problem. I'm single, and I'm starting to think that my dating profile is the reason why.
Mercury 2: [Spotlight comes up. The comedian walks to the mic, glances at the audience, and smiles.] Comedian: Hey, everyone! Great to be here. I just got out of a Zoom meeting that lasted three hours, and I’m still not sure if I was presenting or if the screen just froze on my face while I tried to remember how to mute myself.
Price and specs
Not enough votes to call it. On the specs, DeepSeek Prover V2 has the edge: bigger model tier, major provider backing.
| Spec | DeepSeek Prover V2 | Mercury 2 |
|---|---|---|
| Input price | Free | $0.25/M tokens |
| Output price | Free | $0.75/M tokens |
| Context window | 164K tokens | 128K tokens |
| Weights | Open | — |
| Free API (OpenRouter) | No | No |
| Released | Apr 2025 | Mar 2026 |
| At 10M a month | $0 | $2.50 |
Input tokens at list price. No caching, no batch discount.
Where to run it
DeepSeek Prover V2
No hosts listed on OpenRouter.
Mercury 21 host
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between DeepSeek Prover V2 and Mercury 2?
DeepSeek Prover V2 is developed by DeepSeek while Mercury 2 is developed by Inception. DeepSeek Prover V2 has a 164K token context window vs Mercury 2's 128K. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.
Which is better, DeepSeek Prover V2 or Mercury 2?
It depends on your use case. DeepSeek Prover V2 and Mercury 2 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.
How much does DeepSeek Prover V2 cost compared to Mercury 2?
DeepSeek Prover V2 costs $0/M input tokens and Mercury 2 costs $0.25/M input tokens. DeepSeek Prover V2 is $0.25/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.
How can I compare DeepSeek Prover V2 and Mercury 2 on Rival?
This page shows a side-by-side comparison of DeepSeek Prover V2 and Mercury 2 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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