Claude Haiku 5.5 vs 
DeepSeek Prover V2
DeepSeek Prover V2 is cheaper than Claude Haiku 5.5 at $0/M vs $0.1/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.
Claude Haiku 5.5: "My Smart Fridge Judges Me" So I got a smart fridge. Everybody told me I needed one. "It'll tell you when you're out of milk!" Great. I didn't know I needed a fridge with a notification system. I just wanted cold food.
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.
Price and specs
| Spec | Claude Haiku 5.5 | DeepSeek Prover V2 |
|---|---|---|
| Input price | $0.1/M tokens | Free |
| Output price | $0.5/M tokens | Free |
| Context window | 1.0M tokens | 164K tokens |
| Weights | Closed | Open |
| Free API (OpenRouter) | No | No |
| Released | Oct 2026 | Apr 2025 |
| At 10M a month | $1.00 | $0 |
Input tokens at list price. No caching, no batch discount.
Where to run it
DeepSeek Prover V2
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between Claude Haiku 5.5 and DeepSeek Prover V2?
Claude Haiku 5.5 is developed by Anthropic while DeepSeek Prover V2 is developed by DeepSeek. Claude Haiku 5.5 has a 1.0M token context window vs DeepSeek Prover V2's 164K. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.
Which is better, Claude Haiku 5.5 or DeepSeek Prover V2?
It depends on your use case. Claude Haiku 5.5 and DeepSeek Prover V2 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 Claude Haiku 5.5 cost compared to DeepSeek Prover V2?
Claude Haiku 5.5 costs $0.1/M input tokens and DeepSeek Prover V2 costs $0/M input tokens. DeepSeek Prover V2 is $0.10/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 Claude Haiku 5.5 and DeepSeek Prover V2 on Rival?
This page shows a side-by-side comparison of Claude Haiku 5.5 and DeepSeek Prover V2 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.
More comparisons
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Same lab, same size, long tail
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