Z.AI: GLM 4.7 vs GPT-4

Compare Z.AI: GLM 4.7 by OpenRouter against GPT-4 by OpenAI, tested across 21 shared challenges. Updated April 2026.

Which is better, Z.AI: GLM 4.7 or GPT-4?

Z.AI: GLM 4.7 and GPT-4 are both competitive models. Compare their real outputs side by side below.

Key Differences Between Z.AI: GLM 4.7 and GPT-4

Z.AI: GLM 4.7 is made by openrouter while GPT-4 is from openai.

Our Verdict
GPT-4
GPT-4
Z.AI: GLM 4.7
Z.AI: GLM 4.7Runner-up

No community votes yet. On paper, GPT-4 has the edge — bigger model tier, bigger context window, major provider backing.

Too close to call
Writing DNA

Style Comparison

Similarity
100%

Z.AI: GLM 4.7 uses 12.2x more emoji

Z.AI: GLM 4.7
GPT-4
53%Vocabulary59%
16wSentence Length18w
0.28Hedging1.10
5.7Bold0.8
4.2Lists2.5
0.12Emoji0.00
0.52Headings0.00
0.08Transitions0.45
Based on 21 + 15 text responses
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Ask them anything yourself

Z.AI: GLM 4.7GPT-4

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
Free preview13 of 58 slides
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