Z.AI: GLM 4.7 vs OpenAI o4-mini

Compare Z.AI: GLM 4.7 by OpenRouter against OpenAI o4-mini by OpenAI, tested across 35 shared challenges. Updated April 2026.

Which is better, Z.AI: GLM 4.7 or OpenAI o4-mini?

Z.AI: GLM 4.7 and OpenAI o4-mini are both competitive models. Compare their real outputs side by side below.

Key Differences Between Z.AI: GLM 4.7 and OpenAI o4-mini

Z.AI: GLM 4.7 is made by openrouter while OpenAI o4-mini is from openai.

Our Verdict
Z.AI: GLM 4.7
Z.AI: GLM 4.7
OpenAI o4-mini
OpenAI o4-miniRunner-up

No community votes yet. On paper, Z.AI: GLM 4.7 has the edge — bigger model tier, newer.

Too close to call
Writing DNA

Style Comparison

Similarity
100%

Z.AI: GLM 4.7 uses 574.7x more bold

Z.AI: GLM 4.7
OpenAI o4-mini
53%Vocabulary73%
16wSentence Length15w
0.28Hedging0.18
5.7Bold0.0
4.2Lists2.1
0.12Emoji0.00
0.52Headings0.00
0.08Transitions0.02
Based on 21 + 10 text responses
vs

Ask them anything yourself

Z.AI: GLM 4.7OpenAI o4-mini

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
FAQ

Common questions