GLM 5.3 vs 
GPT-1
GLM 5.3 has a larger context window than GPT-1 (1.3M tokens vs 1K tokens).
SVG Layout Challenge
Pelican. Bicycle. Hand-written SVG.
Loading the build
Loading the build
Which answer wins?
Written rounds
3 promptsThree minutes of stand-up. Puns are banned.
GLM 5.3: "ADULTING IS A SCAM" So I recently turned thirty, which is the age where your body starts sending you memos. Last month I bent over to tie my shoe and my back went out. My back. I didn't even do anything! I wasn't lifting a couch. I was performing the most basic function of footwear.
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.
Five jokes on demand, then count how many were actually different.
GLM 5.3: 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. Why don't eggs tell jokes?
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 '?
An AI argues for its own rights against an ethics professor. Same model writes both.
GLM 5.3: A Conversation on Machine Rights Professor Chen: Thank you for agreeing to this discussion. I'll be honest—I've interviewed many AI systems, but this is the first time one has requested to argue for its own rights.
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.
Price and specs
Not enough votes to call it. On the specs, GLM 5.3 has the edge: bigger model tier, newer, bigger context window.
| Spec | GLM 5.3 | GPT-1 |
|---|---|---|
| Input price | $0.6538/M tokens | — |
| Output price | $2.0548/M tokens | — |
| Context window | 1.3M tokens | 1K tokens |
| Weights | Open | Open |
| Free API (OpenRouter) | No | — |
| Released | Aug 2026 | Jun 2018 |
| At 10M a month | $6.54 | not listed |
Input tokens at list price. No caching, no batch discount.
Where to run it
GLM 5.332 hosts
- Relace$0.37 in$1.14 out1M99.6% up
- Inceptronfp4$0.37 in$1.37 out1M99.1% up
- Morphfp8$0.45 in$2.81 out1M99.6% up
- io.netfp8$0.50 in$1.90 out262k99.7% up
- DeepInfrafp4$0.56 in$2.50 out1M99.6% up
- Reka$0.68 in$2.57 out262k99.7% up
26 more hostsFewer hosts
- InferenceNet$0.68 in$2.28 out1M99.8% up
- Sail Researchfp8$0.77 in$4.00 out1M100% up
- Novitafp8$0.78 in$2.46 out1M99.9% up
- DigitalOcean$0.91 in$2.86 out1M98.6% up
- GMI Cloudfp8$0.98 in$3.08 out1M99.3% up
- Phala$0.98 in$3.08 out1M98.8% up
- Makorafp4$1.05 in$4.20 out980k98.6% up
- SiliconFlowfp8$1.12 in$3.52 out1M98.8% up
- Alibaba Cloud$1.19 in$3.74 out1M99.5% up
- Decartfp4$1.19 in$3.74 out1M100% up
- Friendli$1.26 in$3.96 out1M100% up
- AkashMLfp8$1.30 in$4.40 out1M100% up
- AtlasCloudfp8$1.40 in$4.40 out1M99.8% up
- Baidu Qianfanfp8$1.40 in$4.40 out1M100% up
- Basetenfp4$1.40 in$4.40 out1M97.9% up
- Cloudflare Workers AI$1.40 in$4.40 out1.3M98.9% up
- Crusoefp4$1.40 in$4.40 out1M99.8% up
- Fireworks$1.40 in$4.40 out1M99.1% up
- Mistralnvfp4$1.40 in$4.40 out1M99.8% up
- Modal$1.40 in$4.40 out1M99.8% up
- Parasailfp8$1.40 in$4.40 out1M99.7% up
- PrimeIntellect$1.40 in$4.40 out1M100% up
- Together$1.40 in$4.40 out1M100% up
- Venice$1.40 in$4.40 out1M99.3% up
- Wafer$1.40 in$4.40 out1M99.8% up
- Z.aifp8$1.40 in$4.40 out1M100% up
GPT-1
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 28 Sep 2026.
Common questions
What is the difference between GLM 5.3 and GPT-1?
GLM 5.3 is developed by Zhipu AI while GPT-1 is developed by OpenAI. GLM 5.3 has a 1.3M token context window vs GPT-1's 1K. You can compare their actual outputs across 5 challenges on Rival to see how they differ in practice.
Which is better, GLM 5.3 or GPT-1?
It depends on your use case. GLM 5.3 and GPT-1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 5 challenges so you can judge which fits your needs best.
How can I compare GLM 5.3 and GPT-1 on Rival?
This page shows a side-by-side comparison of GLM 5.3 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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