Z.AI: GLM 4.5
Nothing here. The model returned empty. We stared at it for a while.
Z.AI: GLM 4.5 vs GPT-5
Compare Z.AI: GLM 4.5 by Zhipu AI against GPT-5 by OpenAI, in 19 community votes, gpt-5 wins 82% of head-to-head duels, context windows of 128K vs 400K, tested across 43 shared challenges. Updated April 2026.
Which is better, Z.AI: GLM 4.5 or GPT-5?
GPT-5 is the better choice overall, winning 82% of 19 blind community votes on Rival. Z.AI: GLM 4.5 costs $0.6/M input tokens vs $1.25/M for GPT-5. Context windows: 128K vs 400K tokens. Compare their real outputs side by side below.
Key Differences Between Z.AI: GLM 4.5 and GPT-5
Z.AI: GLM 4.5 is made by zhipu while GPT-5 is from openai. Z.AI: GLM 4.5 has a 128K token context window compared to GPT-5's 400K. On pricing, Z.AI: GLM 4.5 costs $0.6/M input tokens vs $1.25/M for GPT-5. In community voting, In 19 community votes, GPT-5 wins 82% of head-to-head duels.
In 19 community votes, GPT-5 wins 82% of head-to-head duels. GPT-5 leads in Reasoning, Image Generation, Web Design. Based on blind community voting from the Rival open dataset of 19+ human preference judgments for this pair.
Reasoning: GPT-5 wins 89% of votes
Image Generation: GPT-5 wins 75% of votes
Web Design: GPT-5 wins 67% of votes
Our Verdict
GPT-5Winner
Z.AI: GLM 4.5Runner-up
Pick GPT-5. In 19 blind votes, GPT-5 wins 82% of the time. That's not luck.
GPT-5 particularly excels in Reasoning, Image Generation, Web Design. Z.AI: GLM 4.5 is 4.5x cheaper per token — worth considering if cost matters.
Clear winner
Writing DNA
Style Comparison
Similarity
97%
Z.AI: GLM 4.5 uses 13.1x more emoji
Z.AI: GLM 4.5
GPT-5
52%Vocabulary65%
14wSentence Length13w
0.49Hedging0.20
5.5Bold0.2
4.9Lists4.6
0.13Emoji0.00
0.68Headings0.16
0.20Transitions0.03
Based on 21 + 16 text responses
vsAsk them anything yourself
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
FAQ