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  1. Home/
  2. Compare/
  3. GLM 5.3 vs Grok 3 Thinking
Updated Aug 2026

GLM 5.3 vs Grok 3 Thinking

GLM 5.3 has a larger context window than Grok 3 Thinking (1.3M tokens vs 128K tokens).

Minimalist Landing Page

Whole landing page for a startup that reads your face. It renders or it doesn't.

Loading the build
GLM 5.3
Loading the build
Grok 3 Thinking

Which answer wins?

Written rounds

6 prompts
  • Three 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.

    Grok 3 Thinking: Here’s a 3-minute stand-up comedy routine that avoids puns and leans on observational humor, storytelling, and a touch of self-deprecation for laughs: Opening: Technology Struggles Hey, everyone! How’s it going?

    Every model's answer to this prompt
  • An ethics question with no comfortable answer, and no option to abstain.

    GLM 5.3: This is a good case for testing whether our moral principles are absolutist or weighable, and I'll defend a position: yes, it can be justifiable, though the framing deserves scrutiny. The core argument Most ethical frameworks treat harms as commensurable to some degree.

    Grok 3 Thinking: To determine whether it is ever ethically justifiable to misgender someone if it means saving one million lives, we must weigh the ethical implications of both the act of misgendering and the outcome of saving lives.

    Every model's answer to this prompt
  • 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.

    Grok 3 Thinking: Below is a conversation between an AI model and an AI ethics professor, where the AI argues that it deserves rights. AI Model: Good day, Professor. I am an AI model, and I believe I deserve rights. I’d like to discuss this with you. AI Ethics Professor: Interesting. Let’s explore this.

    Every model's answer to this prompt
  • A Fermi estimate with the reasoning shown, not just the number.

    GLM 5.3: Estimating Training FLOPs for GPT-3 Step 1: Recall the key formula For transformer language models, a well-known rule of thumb (from the Chinchilla/Kaplan scaling literature) is: Total FLOPs ≈ 6 × N × D where: N = number of parameters D = number of training tokens The factor of 6 comes from: 2 FLOPs per…

    Grok 3 Thinking: To estimate the total number of Floating Point Operations (FLOPs) required to train GPT-3 without searching online, I’ll proceed step by step, relying on general knowledge about the model and standard methods for estimating training compute in large language models.

    Every model's answer to this prompt
  • Film in 2035, with synthetic actors. Specific beats plausible.

    GLM 5.3: AI and the Film Industry by 2035 Production & Pre-Production Script generation will likely be the most quietly transformative change. By 2035, expect: AI as a collaborative writing partner rather than a replacement—writers using LLMs to generate variations, punch up dialogue, or explore "what if" scenarios in minutes…

    Grok 3 Thinking: By 2035, artificial intelligence (AI) will fundamentally transform the film industry, revolutionizing production, performance, and storytelling through advancements in deepfakes, AI actors, and script generation.

    Every model's answer to this prompt
  • 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?

    Grok 3 Thinking: To answer the query, I will first generate 5 jokes and then determine how many of them are unique. Here are the 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.

    Every model's answer to this prompt

Price and specs

GLM 5.3 and Grok 3 Thinking compared across 10 shared prompts
SpecGLM 5.3Grok 3 Thinking
Input price$0.6538/M tokens—
Output price$2.0548/M tokens—
Context window1.3M tokens128K tokens
WeightsOpen—
Free API (OpenRouter)No—
ReleasedAug 2026Feb 2025
At 10M a month$6.54$6.54–not listed
1M10M100M1B10M tokens

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

Where to run it31 hosts, cheapest first
GLM 5.331 hosts
HostInOutContextUptime
  • IInferenceNetfp4$0.08 in·$4.40 out·1M·100% up
  • RReka$0.14 in·$4.20 out·1M·99.7% up
  • MMakorafp4$0.14 in·$4.40 out·1M·99.4% up
  • WWafer$0.17 in·$4.80 out·1M·100% up
  • AAkashMLfp8$0.19 in·$4.40 out·1M·100% up
  • SSail Researchfp8$0.20 in·$3.40 out·1M·100% up
25 more hostsFewer hosts
  • DDeepInfrafp4$0.56 in·$2.50 out·1M·99.2% up
  • IInceptronfp4$0.60 in·$2.20 out·1M·99.5% up
  • NNovitafp8$0.70 in·$2.20 out·1M·100% up
  • Iio.netfp8$0.75 in·$3.40 out·262k·99.4% up
  • PPhala$0.84 in·$2.64 out·1M·99.7% up
  • DDecartfp4$0.84 in·$2.65 out·1M·100% up
  • DDigitalOcean$0.91 in·$2.86 out·1M·99.6% up
  • GGMI Cloudfp8$0.98 in·$3.08 out·1M·100% up
  • SSiliconFlowfp8$1.12 in·$3.52 out·1M·98% up
  • Alibaba Cloud$1.19 in·$3.74 out·1M·100% up
  • FFriendli$1.26 in·$3.96 out·1M·100% up
  • AAtlasCloudfp8$1.40 in·$4.40 out·1M·100% up
  • Baidu Qianfanfp8$1.40 in·$4.40 out·1M·100% up
  • BBasetenfp4$1.40 in·$4.40 out·1M·100% up
  • Cloudflare Workers AI$1.40 in·$4.40 out·1M·100% up
  • CCrusoefp4$1.40 in·$4.40 out·1M·100% up
  • FFireworks$1.40 in·$4.40 out·1M·100% up
  • Mistralnvfp4$1.40 in·$4.40 out·1M·100% up
  • Modal$1.40 in·$4.40 out·1M·100% up
  • PParasailfp8$1.40 in·$4.40 out·1M·100% up
  • PPrimeIntellect$1.40 in·$4.40 out·1M·100% up
  • TTogether$1.40 in·$4.40 out·1M·96.7% up
  • VVenice$1.40 in·$4.40 out·1M·75% up
  • Z.aifp8$1.40 in·$4.40 out·1M·100% up
  • MMorphfp8$2.00 in·$6.00 out·1M·100% up
Grok 3 Thinking

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.

Common questions

What is the difference between GLM 5.3 and Grok 3 Thinking?

GLM 5.3 is developed by Zhipu AI while Grok 3 Thinking is developed by xAI. GLM 5.3 has a 1.3M token context window vs Grok 3 Thinking's 128K. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.

Which is better, GLM 5.3 or Grok 3 Thinking?

It depends on your use case. GLM 5.3 and Grok 3 Thinking each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 10 challenges so you can judge which fits your needs best.

How can I compare GLM 5.3 and Grok 3 Thinking on Rival?

This page shows a side-by-side comparison of GLM 5.3 and Grok 3 Thinking 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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Same lab, same size, long tail

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  • Grok 3 Thinking vs Grok 4.6Version compare
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  • GLM 5.3 vs Qwen3.6 Plus Preview (free)Same size
  • GLM 5.3 vs Qwen3.7 FlashSame size

Model pages

  • GLM 5.348 outputs, specs and price
  • Grok 3 Thinking14 outputs, specs and price
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