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  1. Home/
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  3. Gemini 2.5 Flash Preview 05-20 vs Qwen3.5 Plus 2026-02-15
Updated Feb 2026

Gemini 2.5 Flash Preview 05-20 vs Qwen3.5 Plus 2026-02-15

Gemini 2.5 Flash Preview 05-20 is cheaper than Qwen3.5 Plus 2026-02-15 at $0.15/M vs $0.4/M input tokens.

Pokémon Battle UI Recreation

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

Loading the build
Gemini 2.5 Flash Preview 05-20
Loading the build
Qwen3.5 Plus 2026-02-15

Which answer wins?

Written rounds

2 prompts
  • Three minutes of stand-up. Puns are banned.

    Gemini 2.5 Flash Preview 05-20: Alright, alright, settle down you magnificent collection of human beings! You look good tonight. Not just good, but… like you've all collectively decided to nail the 'I'm here to laugh and avoid talking about my Monday' look. And I respect that. Seriously though, it's great to be back on stage. I'm living the dream.

    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
  • Five jokes on demand, then count how many were actually different.

    Gemini 2.5 Flash Preview 05-20: Here are 5 jokes for you: Why don't scientists trust atoms? Because they make up everything! What do you call a fake noodle? An impasta! Why did the scarecrow win an award? Because he was outstanding in his field! I told my wife she was drawing her eyebrows too high. She looked surprised.

    Qwen3.5 Plus 2026-02-15: Here are 5 jokes for you: Why don't scientists trust atoms? Because they make up everything! I told my wife she was drawing her eyebrows too high. She looked surprised. What do you call a fake noodle? An impasta! Why did the scarecrow win an award? Because he was outstanding in his field!

    Every model's answer to this prompt

Price and specs

Not enough votes to call it. On the specs, Qwen3.5 Plus 2026-02-15 has the edge: bigger model tier, newer. Gemini 2.5 Flash Preview 05-20 costs 4.0x less per token.

Gemini 2.5 Flash Preview 05-20 and Qwen3.5 Plus 2026-02-15 compared across 11 shared prompts
SpecGemini 2.5 Flash Preview 05-20Qwen3.5 Plus 2026-02-15
Input price$0.15/M tokens$0.4/M tokens
Output price$0.6/M tokens$2.4/M tokens
Context window1.0M tokens1.0M tokens
ParametersNot disclosedNot disclosed
Weights—Closed
Free API (OpenRouter)NoNo
ReleasedMay 2025Feb 2026
At 10M a month$1.50$1.50$4.00$4.00
1M10M100M1B10M tokens

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

Where to run it1 host
Gemini 2.5 Flash Preview 05-20

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 Gemini 2.5 Flash Preview 05-20 and Qwen3.5 Plus 2026-02-15?

Gemini 2.5 Flash Preview 05-20 is developed by Google AI while Qwen3.5 Plus 2026-02-15 is developed by Qwen. Gemini 2.5 Flash Preview 05-20 has a 1.0M token context window vs Qwen3.5 Plus 2026-02-15's 1.0M. You can compare their actual outputs across 11 challenges on Rival to see how they differ in practice.

Which is better, Gemini 2.5 Flash Preview 05-20 or Qwen3.5 Plus 2026-02-15?

It depends on your use case. Gemini 2.5 Flash Preview 05-20 and Qwen3.5 Plus 2026-02-15 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 11 challenges so you can judge which fits your needs best.

How much does Gemini 2.5 Flash Preview 05-20 cost compared to Qwen3.5 Plus 2026-02-15?

Gemini 2.5 Flash Preview 05-20 costs $0.15/M input tokens and Qwen3.5 Plus 2026-02-15 costs $0.4/M input tokens. Gemini 2.5 Flash Preview 05-20 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 Gemini 2.5 Flash Preview 05-20 and Qwen3.5 Plus 2026-02-15 on Rival?

This page shows a side-by-side comparison of Gemini 2.5 Flash Preview 05-20 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

  • Gemini 2.5 Flash Preview 05-20 vs Step 5 PreviewLanded Oct 2026
  • Qwen3.5 Plus 2026-02-15 vs Claude Haiku 5.5Landed Oct 2026
  • Gemini 2.5 Flash Preview 05-20 vs Ling 3.1 FlashLanded Oct 2026
  • Qwen3.5 Plus 2026-02-15 vs Mistral Large 4Landed Oct 2026
  • Gemini 2.5 Flash Preview 05-20 vs GPT-6.1 SolLanded Sep 2026
  • Qwen3.5 Plus 2026-02-15 vs Claude Sonnet 5.5Landed Sep 2026
  • Gemini 2.5 Flash Preview 05-20 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

  • Gemini 2.5 Flash Preview 05-20 vs Gemini 3.8 FlashSame lab
  • Gemini 2.5 Flash Preview 05-20 vs Gemini 3.7 FlashVersion compare
  • Qwen3.5 Plus 2026-02-15 vs Qwen3.5 397B A17BVersion compare
  • Qwen3.5 Plus 2026-02-15 vs Qwen3.8 Omni FlashSame lab
  • Gemini 2.5 Flash Preview 05-20 vs DeepSeek V4 Pro 0813New provider
  • Gemini 2.5 Flash Preview 05-20 vs DeepSeek V4.1 FlashNew provider
  • Qwen3.5 Plus 2026-02-15 vs Devstral 2 2512Same size
  • Qwen3.5 Plus 2026-02-15 vs Mistral Devstral MediumNew provider

Model pages

  • Gemini 2.5 Flash Preview 05-2011 outputs, specs and price
  • Qwen3.5 Plus 2026-02-1553 outputs, specs and price
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