Z.AI: GLM 4.5
Nothing here. The model returned empty. We stared at it for a while.
Z.AI: GLM 4.5 vs xAI: Grok 4
Compare Z.AI: GLM 4.5 by Zhipu AI against xAI: Grok 4 by xAI, in 28 community votes, z.ai: glm 4.5 wins 64% of head-to-head duels, context windows of 128K vs 256K, tested across 34 shared challenges. Updated April 2026.
Which is better, Z.AI: GLM 4.5 or xAI: Grok 4?
Z.AI: GLM 4.5 is the better choice overall, winning 64% of 28 blind community votes on Rival. Z.AI: GLM 4.5 costs $0.6/M input tokens vs $3/M for xAI: Grok 4. Context windows: 128K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between Z.AI: GLM 4.5 and xAI: Grok 4
Z.AI: GLM 4.5 is made by zhipu while xAI: Grok 4 is from xai. Z.AI: GLM 4.5 has a 128K token context window compared to xAI: Grok 4's 256K. On pricing, Z.AI: GLM 4.5 costs $0.6/M input tokens vs $3/M for xAI: Grok 4. In community voting, In 28 community votes, Z.AI: GLM 4.5 wins 64% of head-to-head duels.
In 28 community votes, Z.AI: GLM 4.5 wins 64% of head-to-head duels. Z.AI: GLM 4.5 leads in Web Design, while xAI: Grok 4 leads in Reasoning. Based on blind community voting from the Rival open dataset of 28+ human preference judgments for this pair.
Web Design: Z.AI: GLM 4.5 wins 75% of votes
Reasoning: xAI: Grok 4 wins 60% of votes
Image Generation: Z.AI: GLM 4.5 and xAI: Grok 4 are tied
Conversation: Z.AI: GLM 4.5 and xAI: Grok 4 are tied
Our Verdict
Z.AI: GLM 4.5Winner
xAI: Grok 4Runner-up
Pick Z.AI: GLM 4.5. In 28 blind votes, Z.AI: GLM 4.5 wins 64% of the time. That's not luck.
Pick Z.AI: GLM 4.5 for Web Design. Pick xAI: Grok 4 for Reasoning. Z.AI: GLM 4.5 is 6.8x cheaper per token — worth considering if cost matters.
Clear winner
Writing DNA
Style Comparison
Similarity
91%
Z.AI: GLM 4.5 uses 4.6x more transitions
Z.AI: GLM 4.5
xAI: Grok 4
52%Vocabulary53%
14wSentence Length18w
0.49Hedging0.67
5.5Bold2.7
4.9Lists2.7
0.13Emoji0.07
0.68Headings0.86
0.20Transitions0.04
Based on 21 + 21 text responses
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