Z.ai: GLM 5
Nothing here. The model returned empty. We stared at it for a while.
Z.ai: GLM 5 vs xAI: Grok 4
Compare Z.ai: GLM 5 by Zhipu AI against xAI: Grok 4 by xAI, in 1 community votes, z.ai: glm 5 wins 100% of head-to-head duels, context windows of 203K vs 256K, tested across 38 shared challenges. Updated April 2026.
Which is better, Z.ai: GLM 5 or xAI: Grok 4?
Z.ai: GLM 5 is the better choice overall, winning 100% of 1 blind community votes on Rival. Z.ai: GLM 5 costs $0.8/M input tokens vs $3/M for xAI: Grok 4. Context windows: 203K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between Z.ai: GLM 5 and xAI: Grok 4
Z.ai: GLM 5 is made by zhipu while xAI: Grok 4 is from xai. Z.ai: GLM 5 has a 203K token context window compared to xAI: Grok 4's 256K. On pricing, Z.ai: GLM 5 costs $0.8/M input tokens vs $3/M for xAI: Grok 4. In community voting, In 1 community votes, Z.ai: GLM 5 wins 100% of head-to-head duels.
In 1 community votes, Z.ai: GLM 5 wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 1+ human preference judgments for this pair.
Our Verdict
Z.ai: GLM 5Winner
xAI: Grok 4Runner-up
Pick Z.ai: GLM 5. In 1 blind votes, Z.ai: GLM 5 wins 100% of the time. That's not luck.
Z.ai: GLM 5 is 5.9x cheaper per token — worth considering if cost matters.
Clear winner
Writing DNA
Style Comparison
Similarity
100%
xAI: Grok 4 uses 7.0x more emoji
Z.ai: GLM 5
xAI: Grok 4
54%Vocabulary53%
17wSentence Length18w
0.37Hedging0.67
6.3Bold2.7
4.7Lists2.7
0.00Emoji0.07
0.60Headings0.86
0.18Transitions0.04
Based on 22 + 21 text responses
vs
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279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
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