Gemini 2.5 Flash Preview 05-20 (thinking) vs 
Mistral Small 4
Gemini 2.5 Flash Preview 05-20 (thinking) has a larger context window than Mistral Small 4 (1.0M tokens vs 262K tokens).
Pokémon Battle UI Recreation
Pokémon battle screen you can actually click. One HTML file.
Loading the build
Loading the build
Which answer wins?
Written rounds
2 promptsThree 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?
Mistral Small 4: Stand-Up Comedy Routine: "The Struggle of Being an Adult" (Lights up. Comedian walks on stage, mic in hand, casual vibe.) Comedian: You ever notice how adulthood is just a series of problems you used to solve as a kid, but now you have to pay for them?
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.
Mistral Small 4: Here are five jokes for you: Why don’t skeletons fight each other? They don’t have the guts. Why did the scarecrow win an award? Because he was outstanding in his field! What do you call fake spaghetti? An impasta! Why can’t you explain puns to kleptomaniacs? Because they always take things literally.
Price and specs
Not enough votes to call it. On the specs, Gemini 2.5 Flash Preview 05-20 (thinking) has the edge: bigger model tier, bigger context window, major provider backing. Mistral Small 4 costs 5.8x less per token.
| Spec | Gemini 2.5 Flash Preview 05-20 (thinking) | Mistral Small 4 |
|---|---|---|
| Input price | $0.15/M tokens | $0.15/M tokens |
| Output price | $3.5/M tokens | $0.6/M tokens |
| Context window | 1.0M tokens | 262K tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | May 2025 | Mar 2026 |
| At 10M a month | $1.50 | $1.50 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Gemini 2.5 Flash Preview 05-20 (thinking)
No hosts listed on OpenRouter.
Mistral Small 41 host
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 (thinking) and Mistral Small 4?
Gemini 2.5 Flash Preview 05-20 (thinking) is developed by Google AI while Mistral Small 4 is developed by Mistral AI. Gemini 2.5 Flash Preview 05-20 (thinking) has a 1.0M token context window vs Mistral Small 4's 262K. 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 (thinking) or Mistral Small 4?
It depends on your use case. Gemini 2.5 Flash Preview 05-20 (thinking) and Mistral Small 4 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 (thinking) cost compared to Mistral Small 4?
Gemini 2.5 Flash Preview 05-20 (thinking) costs $0.15/M input tokens and Mistral Small 4 costs $0.15/M input tokens. Mistral Small 4 is $0.00/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 Mistral Small 4 on Rival?
This page shows a side-by-side comparison of Gemini 2.5 Flash Preview 05-20 (thinking) and Mistral Small 4 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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