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  1. Home/
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  3. Gemini 2.5 Flash Preview 05-20 (thinking) vs Qwen3.8 Max (0902)
Updated Sep 2026

Gemini 2.5 Flash Preview 05-20 (thinking) vs Qwen3.8 Max (0902)

Gemini 2.5 Flash Preview 05-20 (thinking) is cheaper than Qwen3.8 Max (0902) at $0.15/M vs $2/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 (thinking)
Loading the build
Qwen3.8 Max (0902)

Which answer wins?

Written rounds

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

    Gemini 2.5 Flash Preview 05-20 (thinking): (Lights up on a stage. Comedian walks to center, adjusts mic, smiles warmly.) \"Alright, alright, settle down you crazy people! Thanks for having me. (Pause fo r applause/laughter) You know, I was scrolling through Instagram earlier, and it\'s just a constant ba rrage of people \'living thei r best life,\' isn\'t it?

    Qwen3.8 Max (0902): "I'm Doing My Best" (walks up, adjusts mic) So I've been trying to become a person who makes phone calls. Like, actually calls people. Because I read somewhere that it's good for your mental health. And I did it. I called my dentist to reschedule an appointment.

    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 (thinking): Here are 5 jokes: 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.

    Qwen3.8 Max (0902): Here are 5 jokes: Why don't scientists trust atoms? Because they make up everything. Knock knock. Who's there? Lettuce. Lettuce who? Lettuce in, it's cold out here! 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?

    Every model's answer to this prompt

Price and specs

Not enough votes to call it. On the specs, Qwen3.8 Max (0902) has the edge: bigger model tier, newer.

Gemini 2.5 Flash Preview 05-20 (thinking) and Qwen3.8 Max (0902) compared across 9 shared prompts
SpecGemini 2.5 Flash Preview 05-20 (thinking)Qwen3.8 Max (0902)
Input price$0.15/M tokens$2/M tokens
Output price$3.5/M tokens$6/M tokens
Context window1.0M tokens1.0M tokens
Weights—Closed
Free API (OpenRouter)NoNo
ReleasedMay 2025Sep 2026
At 10M a month$1.50$1.50$20.00$20.00
1M10M100M1B10M tokens

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

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

No hosts listed on OpenRouter.

Qwen3.8 Max (0902)1 host
HostInOutContextUptime
  • Alibaba Cloud$2.00 in·$6.00 out·1M·99.8% up

Per million tokens. Prices and uptime via OpenRouter, checked 30 Sep 2026.

Common questions

What is the difference between Gemini 2.5 Flash Preview 05-20 (thinking) and Qwen3.8 Max (0902)?

Gemini 2.5 Flash Preview 05-20 (thinking) is developed by Google AI while Qwen3.8 Max (0902) is developed by Qwen. Gemini 2.5 Flash Preview 05-20 (thinking) has a 1.0M token context window vs Qwen3.8 Max (0902)'s 1.0M. You can compare their actual outputs across 9 challenges on Rival to see how they differ in practice.

Which is better, Gemini 2.5 Flash Preview 05-20 (thinking) or Qwen3.8 Max (0902)?

It depends on your use case. Gemini 2.5 Flash Preview 05-20 (thinking) and Qwen3.8 Max (0902) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 9 challenges so you can judge which fits your needs best.

How much does Gemini 2.5 Flash Preview 05-20 (thinking) cost compared to Qwen3.8 Max (0902)?

Gemini 2.5 Flash Preview 05-20 (thinking) costs $0.15/M input tokens and Qwen3.8 Max (0902) costs $2/M input tokens. Gemini 2.5 Flash Preview 05-20 (thinking) is $1.85/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 (thinking) and Qwen3.8 Max (0902) on Rival?

This page shows a side-by-side comparison of Gemini 2.5 Flash Preview 05-20 (thinking) and Qwen3.8 Max (0902) 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

  • Gemini 2.5 Flash Preview 05-20 (thinking) vs Gemini 3.8 FlashSame lab
  • Gemini 2.5 Flash Preview 05-20 (thinking) vs Gemini 3.7 FlashVersion compare
  • Qwen3.8 Max (0902) vs Qwen3.7 FlashSame lab
  • Qwen3.8 Max (0902) vs Qwen3.8 FlashSame lab
  • Qwen3.8 Max (0902) vs Gemini 2.5 Flash Preview (thinking)Cross-provider
  • Qwen3.8 Max (0902) vs Gemini 2.5 Pro ExperimentalCross-provider
  • Qwen3.8 Max (0902) vs Gemini 2.5 Pro (I/O Edition)Cross-provider
  • Qwen3.8 Max (0902) vs Gemini 2.5 Pro Preview 06-05Cross-provider

Model pages

  • Gemini 2.5 Flash Preview 05-20 (thinking)12 outputs, specs and price
  • Qwen3.8 Max (0902)56 outputs, specs and price
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