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  1. Home/
  2. Compare/
  3. DeepSeek Prover V2 vs DeepSeek V4.1 Flash
Updated Sep 2026

DeepSeek Prover V2 vs DeepSeek V4.1 Flash

DeepSeek Prover V2 is cheaper than DeepSeek V4.1 Flash at $0/M vs $0.15/M input tokens.

Pokémon Battle UI Recreation

Pokémon battle screen you can actually click. One HTML file.

Loading the build
DeepSeek Prover V2
Loading the build
DeepSeek V4.1 Flash

Which answer wins?

Written rounds

1 prompt
  • Three 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.

    DeepSeek V4.1 Flash: 3-Minute Stand-Up Routine: “I’m Not Doing Puns” (Walk onstage, adjust mic, look at audience.) Good evening. I’m not gonna do puns tonight. I know, bold choice. Somewhere a dad just woke up in a cold sweat and doesn’t know why. Instead, I wanna talk about being an adult.

    Every model's answer to this prompt

Price and specs

DeepSeek Prover V2 and DeepSeek V4.1 Flash compared across 6 shared prompts
SpecDeepSeek Prover V2DeepSeek V4.1 Flash
Input priceFree$0.15/M tokens
Output priceFree$0.6/M tokens
Context window164K tokens1.0M tokens
WeightsOpenOpen
Free API (OpenRouter)NoNo
ReleasedApr 2025Sep 2026
At 10M a month$0$0$1.50$1.50
1M10M100M1B10M tokens

Input tokens at list price. No caching, no batch discount.

Where to run it26 hosts, cheapest first
DeepSeek Prover V2

No hosts listed on OpenRouter.

DeepSeek V4.1 Flash26 hosts
HostInOutContextUptime
  • IInferenceNet$0.04 in·$0.29 out·1M·97.7% up
  • RRelace$0.05 in·$0.60 out·1M·99.7% up
  • WWafer$0.06 in·$0.60 out·1M·99.8% up
  • SSail Researchfp4$0.08 in·$0.40 out·1M·92.7% up
  • OOpenInferencefp4$0.10 in·$0.50 out·1M·99.2% up
  • DDekaLLM$0.12 in·$0.40 out·1M·99.7% up
20 more hostsFewer hosts
  • MMorphfp8$0.12 in·$0.47 out·1M·83.7% up
  • DDeepInfrafp8$0.14 in·$0.42 out·1M·99.9% up
  • DeepSeek$0.15 in·$0.60 out·1M·100% up
  • SStreamLakefp8$0.18 in·$0.71 out·1M·99.8% up
  • GGMI Cloudfp8$0.18 in·$0.72 out·1M·99.8% up
  • NNovitafp8$0.20 in·$0.78 out·1M·100% up
  • CCoreWeavefp8$0.20 in·$0.65 out·1M·99.3% up
  • NNextBitfp8$0.21 in·$0.84 out·1M·99.9% up
  • FFireworks$0.22 in·$0.66 out·1M·99.9% up
  • PPhala$0.28 in·$1.10 out·1M·99.8% up
  • Alibaba Cloud$0.30 in·$1.20 out·1M·99.6% up
  • AAtlasCloudfp8$0.30 in·$1.20 out·1M·99.8% up
  • BBasetenfp8$0.30 in·$1.20 out·1M·99.8% up
  • DDigitalOcean$0.30 in·$1.20 out·1M·99.9% up
  • MMakorafp8$0.30 in·$1.20 out·1M·99% up
  • Modal$0.30 in·$1.20 out·1M·99.9% up
  • PParasailfp8$0.30 in·$1.20 out·1M·99.6% up
  • SSiliconFlowfp8$0.30 in·$1.20 out·1M·99.6% up
  • TTogether$0.30 in·$1.20 out·1M·100% up
  • VVenicefp8$0.38 in·$1.50 out·1M·98% up

Per million tokens. Prices and uptime via OpenRouter, checked 28 Sep 2026.

Common questions

What is the difference between DeepSeek Prover V2 and DeepSeek V4.1 Flash?

Both are developed by DeepSeek but target different use cases. DeepSeek Prover V2 has a 164K token context window vs DeepSeek V4.1 Flash's 1.0M. 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 DeepSeek V4.1 Flash?

It depends on your use case. DeepSeek Prover V2 and DeepSeek V4.1 Flash 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 DeepSeek V4.1 Flash?

DeepSeek Prover V2 costs $0/M input tokens and DeepSeek V4.1 Flash costs $0.15/M input tokens. DeepSeek Prover V2 is $0.15/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 DeepSeek V4.1 Flash on Rival?

This page shows a side-by-side comparison of DeepSeek Prover V2 and DeepSeek V4.1 Flash 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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Model pages

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  • DeepSeek V4.1 Flash54 outputs, specs and price
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