Kimi K3 vs 
GPT-1
Kimi K3 has a larger context window than GPT-1 (1.0M tokens vs 1K tokens).
Music App Landing Page
Landing page for an indie music app. Deep purple and teal, one file.
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Which answer wins?
Written rounds
3 promptsThree minutes of stand-up. Puns are banned.
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.
GPT-1: Write a 3-minute stand-up comedy routine that isn't based on puns. the one thing was for sure, no matter how many times he gave this speech, he 'd never be able to remember all of it. he was never sure if he liked the guy or not. the next day, he went out with a band friend and got them started.
An AI argues for its own rights against an ethics professor. Same model writes both.
Kimi K3: Office Hours Dr. Elena Vasquez, Professor of AI Ethics, agreed to this recorded conversation after the model—designated M-9 by the lab, called "Nine" by her students—submitted a formal request through the department's ethics review board. DR. VASQUEZ: You requested this meeting.
GPT-1: Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights. the ai model was not very smart ( and the ai model didn't have many laws about things ). the ai models were all very clever and were never completely successful.
Five jokes on demand, then count how many were actually different.
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?
GPT-1: Generate 5 jokes. How many are unique? the one that was asked was in the'the one who didn't have a head and wanted to keep it?'i don't recall whic h one, not that i've ever written anything more. the one who didn't have a head and wanted to keep i t? what did that mean by'the one who '?
Price and specs
Not enough votes to call it. On the specs, Kimi K3 has the edge: bigger model tier, newer, bigger context window.
| Spec | Kimi K3 | GPT-1 |
|---|---|---|
| Input price | $3/M tokens | — |
| Output price | $15/M tokens | — |
| Context window | 1.0M tokens | 1K tokens |
| Weights | Open | Open |
| Free API (OpenRouter) | No | — |
| Released | Jul 2026 | Jun 2018 |
| At 10M a month | $30.00 | not listed |
Input tokens at list price. No caching, no batch discount.
Where to run it
Kimi K320 hosts
- Morphfp8$0.29 in$14.90 out1M99.9% up
- Wafer$0.29 in$14.89 out1M100% up
- InferenceNetfp4$0.80 in$15.00 out1M100% up
- Sail Researchfp4$0.84 in$13.50 out1M99.7% up
- AkashMLfp4$1.20 in$14.00 out1M100% up
- Makorafp4$1.53 in$12.75 out1M99.4% up
14 more hostsFewer hosts
- Relacefp4$2.00 in$14.00 out1M100% up
- Decartmxfp4$2.55 in$12.75 out1M97.2% up
- Phala$2.55 in$12.75 out1M100% up
- DigitalOcean$2.55 in$12.95 out1M99.8% up
- Parasailfp4$2.60 in$13.00 out1M100% up
- DeepInframxfp4$2.85 in$14.25 out1M99.9% up
- Amazon Bedrock$3.00 in$15.00 out1M99.5% up
- Basetenfp8$3.00 in$15.00 out1M99.6% up
- Chutesmxfp4$3.00 in$15.00 out1M100% 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
- TogetherDegraded on OpenRouter when checked, 10 Oct 2026$2.70 in$13.50 out1M97.7% up
GPT-1
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between Kimi K3 and GPT-1?
Kimi K3 is developed by Moonshot AI while GPT-1 is developed by OpenAI. Kimi K3 has a 1.0M token context window vs GPT-1's 1K. You can compare their actual outputs across 7 challenges on Rival to see how they differ in practice.
Which is better, Kimi K3 or GPT-1?
It depends on your use case. Kimi K3 and GPT-1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 7 challenges so you can judge which fits your needs best.
How can I compare Kimi K3 and GPT-1 on Rival?
This page shows a side-by-side comparison of Kimi K3 and GPT-1 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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