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  1. Home/
  2. Compare/
  3. DeepSeek Prover V2 vs Qwen3.5 Plus 2026-02-15
Updated Feb 2026

DeepSeek Prover V2 vs Qwen3.5 Plus 2026-02-15

DeepSeek Prover V2 is cheaper than Qwen3.5 Plus 2026-02-15 at $0/M vs $0.4/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
Qwen3.5 Plus 2026-02-15

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.

    Qwen3.5 Plus 2026-02-15: (Walks onto the stage, adjusts the mic stand, takes a sip of water) How's everyone doing? Good? You look good. You look like people who have their lives together. Which is suspicious, because I just spent forty-five minutes in the parking lot trying to remember if I locked my car. I don't mean I forgot how to lock it.

    Every model's answer to this prompt

Price and specs

DeepSeek Prover V2 and Qwen3.5 Plus 2026-02-15 compared across 6 shared prompts
SpecDeepSeek Prover V2Qwen3.5 Plus 2026-02-15
Input priceFree$0.4/M tokens
Output priceFree$2.4/M tokens
Context window164K tokens1.0M tokens
Parameters671BNot disclosed
WeightsOpenClosed
Free API (OpenRouter)NoNo
ReleasedApr 2025Feb 2026
At 10M a month$0$0$4.00$4.00
1M10M100M1B10M tokens

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

Where to run it1 host
DeepSeek Prover V2

No hosts listed on OpenRouter.

Qwen3.5 Plus 2026-02-151 host
HostInOutContextUptime
  • Alibaba Cloud$0.26 in·$1.56 out·1M·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.

Common questions

What is the difference between DeepSeek Prover V2 and Qwen3.5 Plus 2026-02-15?

DeepSeek Prover V2 is developed by DeepSeek while Qwen3.5 Plus 2026-02-15 is developed by Qwen. DeepSeek Prover V2 has a 164K token context window vs Qwen3.5 Plus 2026-02-15'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 Qwen3.5 Plus 2026-02-15?

It depends on your use case. DeepSeek Prover V2 and Qwen3.5 Plus 2026-02-15 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 Qwen3.5 Plus 2026-02-15?

DeepSeek Prover V2 costs $0/M input tokens and Qwen3.5 Plus 2026-02-15 costs $0.4/M input tokens. DeepSeek Prover V2 is $0.40/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 Qwen3.5 Plus 2026-02-15 on Rival?

This page shows a side-by-side comparison of DeepSeek Prover V2 and Qwen3.5 Plus 2026-02-15 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

Against the newest arrivals

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  • Qwen3.5 Plus 2026-02-15 vs Claude Haiku 5.5Landed Oct 2026
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  • Qwen3.5 Plus 2026-02-15 vs Mistral Large 4Landed Oct 2026
  • DeepSeek Prover V2 vs GPT-6.1 SolLanded Sep 2026
  • Qwen3.5 Plus 2026-02-15 vs Claude Sonnet 5.5Landed Sep 2026
  • DeepSeek Prover V2 vs Solar Mini 4Landed Sep 2026
  • Qwen3.5 Plus 2026-02-15 vs Qwen3.8 Max PrimeLanded Sep 2026

Same lab, same size, long tail

  • DeepSeek Prover V2 vs DeepSeek V4 Flash Vision ExpSame lab
  • DeepSeek Prover V2 vs DeepSeek V4.1 FlashSame lab
  • Qwen3.5 Plus 2026-02-15 vs Qwen3.5 397B A17BVersion compare
  • Qwen3.5 Plus 2026-02-15 vs Qwen3.8 Omni FlashSame lab
  • DeepSeek Prover V2 vs GLM 5 TurboNew provider
  • DeepSeek Prover V2 vs GLM 5.1New provider
  • DeepSeek Prover V2 vs GLM 5.2Same size
  • DeepSeek Prover V2 vs GLM 5.3New provider

Model pages

  • DeepSeek Prover V26 outputs, specs and price
  • Qwen3.5 Plus 2026-02-1553 outputs, specs and price
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