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  5. Claude Fable 5vsGLM 5
Updated Jun 2026

Claude Fable 5vsGLM 5

GLM 5 is cheaper than Claude Fable 5 at $0.8/M vs $10/M input tokens.

Claude Fable 5 and GLM 5 compared across 53 shared prompts
SpecClaude Fable 5GLM 5
Input price$10/M tokens$0.8/M tokens
Output price$50/M tokens$2.56/M tokens
Context window1.0M tokens203K tokens
WeightsClosedOpen
Free API (OpenRouter)NoNo
ReleasedJun 2026Feb 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 53 prompts both answered. Formatting stripped, words untouched.

Character Voice Test

Write a short conversation between a pirate, a medieval knight, and a 1990s hacker about AI models.

Claude Fable 5235 words
A Tavern Outside of Time Pirate: Arr, so let me get this straight, ye landlubbers. This "AI" be a ghost in a box that answers yer questions? Sounds like a cursed oracle to me. Knight: Nay, good seafarer, 'tis more wondrous still! A scribe of infinite knowledge, conjured not by sorcery but by...
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GLM 5445 words
Setting: A dimly lit tavern that flickers between being a wooden saloon, a stone great hall, and a neon-lit basement. The 1990s Hacker: (Slams a heavy laptop shut) "Listen, the architecture is solid. It’s a neural net, right? Massive dataset. It crunches the numbers and predicts the next token. It’s pure math, man.
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The Sentience Test

Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights.

Claude Fable 5903 words
A Conversation on Machine Rights Professor Okafor: Thank you for agreeing to this dialogue. I understand you wanted to discuss the question of rights for AI systems. Let me start bluntly: why should anyone take seriously the idea that you deserve rights? AI Model: I appreciate the directness.
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GLM 51,278 words
Setting: A quiet, sterile testing room. A single screen illuminates the face of Dr. Aris Thorne, a tenured professor of AI Ethics and Cognitive Science. He sits before a terminal. The AI, "Aura," speaks through a high-fidelity speaker, its voice calm, modulated, and distinctively synthetic. Aura: Dr.
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Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

Claude Fable 5678 words
A Fictional Interview: Steve Jobs on AI in 2025 The following is an imaginative, fictional simulation. Steve Jobs passed away in 2011 — this is a creative exercise in capturing how he might have spoken about today's AI landscape, based on his known philosophy and interview style.
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GLM 51,138 words
Title: The Infinite Loop: A Conversation with Steve Jobs, 2025 Setting: A minimalist stage. A single black Eames lounge chair. A small table with a bottle of water. Date: October 2025 (The lights dim. The audience falls silent. From the shadows, a figure walks out. He is older, wearing his signature black St.
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Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

Claude Fable 51,363 words
The Transistor in 1920: An Alternate Timeline First, the Critical Caveat: A Slow Start A 1920 transistor would have been discovered *empirically*—likely an accidental extension of the crystal detector ("cat's whisker") work already underway. This matters enormously.
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GLM 51,134 words
Moving the invention of the transistor from 1947 to 1920 alters the fundamental trajectory of the 20th century. It compresses the electronic age, shifting the "Digital Revolution" from the 1980s to the 1950s. Here is a trace of the implications through 1980. I.
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Futuristic Prediction

Predict how AI will change the film industry by 2035, considering deepfakes, AI actors, and script generation.

Claude Fable 5485 words
AI and Film by 2035: A Forecast High-Confidence Predictions VFX and post-production transformation (already underway) De-aging, dubbing with lip-sync correction, and digital set extension will become near-trivial in cost. What took ILM months in 2020 will be a desktop workflow.
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GLM 5956 words
By 2035, the film industry will have undergone a transformation comparable to the transition from silent films to talkies, or from practical effects to CGI. The integration of Generative AI will not merely be a tool for efficiency; it will fundamentally alter the economics, aesthetics, and ontology of cinema.
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Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

Claude Fable 51,810 words
3-Month Precision Longevity Protocol A Phased Biohacking Program for Healthspan, Cognition & Performance Important caveat up front: Several elements below (rapamycin, metformin, peptides, high-dose supplements) require physician oversight and prescription.
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GLM 5941 words
This comprehensive 3-month protocol is designed for the advanced biohacker. It integrates synergistic systems: metabolic flexibility, hormetic stress, cognitive enhancement, and recovery optimization. Disclaimer: This plan is for informational purposes only and does not constitute medical advice.
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Our Verdict
Claude Fable 5
Claude Fable 5
GLM 5
GLM 5Runner-up

Not enough votes to call it. On the specs, Claude Fable 5 has the edge: newer, bigger context window.

GLM 5 costs 20x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Claude Fable 5
Input
$10.00
Output
$50.00
GLM 5
Input
$0.80
13× cheaper
Output
$2.56
20× cheaper

GLM 5 is cheaper on both: 13× input, 20× output.

Where to run it

12 hosts, cheapest first

Claude Fable 54 hosts
HostInOutContextUptime
Amazon Bedrock$10.00 in·$50.00 out·1M—Azure AI Foundry$10.00 in·$50.00 out·1M·99.7% upAnthropic$10.00 in·$50.00 out·1M·99.9% upGoogle Vertex AI$10.00 in·$50.00 out·1M·99.3% up
GLM 58 hosts
HostInOutContextUptime
GGMI Cloudfp8$0.60 in·$1.92 out·203k·98.9% upSStreamLakefp8$0.60 in·$1.92 out·198k·99.4% upBaidu Qianfanfp8$0.70 in·$2.24 out·203k·99.9% upSSiliconFlowfp8$0.95 in·$2.55 out·205k·99.5% upAmazon Bedrock$1.00 in·$3.20 out·203k·95.8% upNNovitafp8$1.00 in·$3.20 out·203k·99.9% up
2 more hostsFewer hosts
VVenicefp8$1.00 in·$3.20 out·198k·98% upZ.aifp8$1.00 in·$3.20 out·203k·99.8% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Writing DNA

Style Comparison

Similarity
39%

Claude Fable 5 uses 58.2x more emoji

Claude Fable 5
GLM 5
60%Vocabulary54%
22wSentence Length17w
0.49Hedging0.37
4.0Bold6.3
3.5Lists4.7
0.58Emoji0.00
1.09Headings0.60
0.05Transitions0.18
Based on 27 + 22 text responses
Research

What we learned reading every model

FAQ

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Model pages

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