Z.ai: GLM 5.1 vs Llama 4 Scout

Compare Z.ai: GLM 5.1 by Z-ai against Llama 4 Scout by Meta AI, context windows of 203K vs 10.0M, tested across 53 shared challenges. Updated April 2026.

Which is better, Z.ai: GLM 5.1 or Llama 4 Scout?

Z.ai: GLM 5.1 and Llama 4 Scout are both competitive models. Z.ai: GLM 5.1 costs $1.4/M input tokens vs $0.25/M for Llama 4 Scout. Context windows: 203K vs 10000K tokens. Compare their real outputs side by side below.

Key Differences Between Z.ai: GLM 5.1 and Llama 4 Scout

Z.ai: GLM 5.1 is made by z-ai while Llama 4 Scout is from meta. Z.ai: GLM 5.1 has a 203K token context window compared to Llama 4 Scout's 10000K. On pricing, Z.ai: GLM 5.1 costs $1.4/M input tokens vs $0.25/M for Llama 4 Scout.

Our Verdict
Z.ai: GLM 5.1
Z.ai: GLM 5.1
Llama 4 Scout
Llama 4 Scout

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Llama 4 Scout is 8.8x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
98%

Llama 4 Scout uses 2.8x more lists

Z.ai: GLM 5.1
Llama 4 Scout
54%Vocabulary43%
18wSentence Length42w
0.31Hedging0.81
3.6Bold4.1
2.6Lists7.3
0.00Emoji0.00
0.43Headings0.30
0.11Transitions0.04
Based on 27 + 10 text responses
vs

Ask them anything yourself

Z.ai: GLM 5.1Llama 4 Scout

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
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