Gemini 2.5 Flash Preview 05-20 vs 
Kimi K3
Gemini 2.5 Flash Preview 05-20 is cheaper than Kimi K3 at $0.15/M vs $3/M input tokens.
Pokémon Battle UI Recreation
Pokémon battle screen you can actually click. One HTML file.
Loading the build
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Which answer wins?
Written rounds
2 promptsThree 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.
Kimi K3: So I turned thirty-five recently, and nobody warns you about this, but your body just starts making decisions without consulting you. I sneezed last week and threw out my back. A sneeze! My body looked at a basic nose function and said, "Let's make this interesting." I was on the floor for twenty minutes.
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.
Kimi K3: Here are 5 jokes: Why don't scientists trust atoms? Because they make up everything! Why did the scarecrow win an award? Because he was outstanding in his field! Why don't skeletons fight each other? They don't have the guts. What do you call a fish with no eyes? A fsh. Why did the math book look sad?
Price and specs
Not enough votes to call it. On the specs, Kimi K3 has the edge: bigger model tier, newer. Gemini 2.5 Flash Preview 05-20 costs 25x less per token.
| Spec | Gemini 2.5 Flash Preview 05-20 | Kimi K3 |
|---|---|---|
| Input price | $0.15/M tokens | $3/M tokens |
| Output price | $0.6/M tokens | $15/M tokens |
| Context window | 1.0M tokens | 1.0M tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | May 2025 | Jul 2026 |
| At 10M a month | $1.50 | $30.00 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Gemini 2.5 Flash Preview 05-20
No hosts listed on OpenRouter.
Kimi K320 hosts
- Wafer$0.60 in$15.00 out1M100% up
- InferenceNetfp4$0.80 in$13.50 out1M100% up
- Sail Researchfp4$0.84 in$13.50 out1M99.9% up
- AkashMLfp4$1.20 in$14.00 out1M97.6% up
- Morphfp8$1.30 in$14.00 out1M99.8% up
- Makorafp4$1.53 in$12.75 out1M99.6% up
14 more hostsFewer hosts
- Relacefp4$2.00 in$14.00 out1M100% up
- Decartmxfp4$2.55 in$12.75 out1M96.9% up
- Phala$2.55 in$12.75 out1M99.4% up
- DigitalOcean$2.55 in$12.95 out1M100% up
- Parasailfp4$2.60 in$13.00 out1M100% up
- Together$2.70 in$13.50 out1M98.1% up
- DeepInframxfp4$2.85 in$14.25 out1M100% up
- Amazon Bedrock$3.00 in$15.00 out1M98.3% up
- Basetenfp8$3.00 in$15.00 out1M100% up
- Chutesmxfp4$3.00 in$15.00 out1M90.9% up
- Fireworks$3.00 in$15.00 out1M100% up
- Modalmxfp4$3.00 in$15.00 out1M100% up
- Moonshot AImxfp4$3.00 in$15.00 out1M100% up
- Alibaba Cloud$3.45 in$17.25 out1M100% 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 Kimi K3?
Gemini 2.5 Flash Preview 05-20 is developed by Google AI while Kimi K3 is developed by Moonshot AI. Gemini 2.5 Flash Preview 05-20 has a 1.0M token context window vs Kimi K3'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 Kimi K3?
It depends on your use case. Gemini 2.5 Flash Preview 05-20 and Kimi K3 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 Kimi K3?
Gemini 2.5 Flash Preview 05-20 costs $0.15/M input tokens and Kimi K3 costs $3/M input tokens. Gemini 2.5 Flash Preview 05-20 is $2.85/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 and Kimi K3 on Rival?
This page shows a side-by-side comparison of Gemini 2.5 Flash Preview 05-20 and Kimi K3 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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