Z.AI: GLM 4.5 Air vs GPT-5

Compare Z.AI: GLM 4.5 Air by Zhipu AI against GPT-5 by OpenAI, in 22 community votes, z.ai: glm 4.5 air wins 69% of head-to-head duels, context windows of 128K vs 400K, tested across 26 shared challenges. Updated April 2026.

Which is better, Z.AI: GLM 4.5 Air or GPT-5?

Z.AI: GLM 4.5 Air is the better choice overall, winning 69% of 22 blind community votes on Rival. Z.AI: GLM 4.5 Air costs $0.2/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 Air and GPT-5

Z.AI: GLM 4.5 Air is made by zhipu while GPT-5 is from openai. Z.AI: GLM 4.5 Air has a 128K token context window compared to GPT-5's 400K. On pricing, Z.AI: GLM 4.5 Air costs $0.2/M input tokens vs $1.25/M for GPT-5. In community voting, In 22 community votes, Z.AI: GLM 4.5 Air wins 69% of head-to-head duels.

In 22 community votes, Z.AI: GLM 4.5 Air wins 69% of head-to-head duels. Z.AI: GLM 4.5 Air leads in Image Generation, Web Design, Reasoning. Based on blind community voting from the Rival open dataset of 22+ human preference judgments for this pair.

Image Generation: Z.AI: GLM 4.5 Air wins 80% of votes
Web Design: Z.AI: GLM 4.5 Air wins 60% of votes
Reasoning: Z.AI: GLM 4.5 Air wins 67% of votes
Conversation: Z.AI: GLM 4.5 Air and GPT-5 are tied
Our Verdict
Z.AI: GLM 4.5 Air
Z.AI: GLM 4.5 AirWinner
GPT-5
GPT-5Runner-up

Pick Z.AI: GLM 4.5 Air. In 22 blind votes, Z.AI: GLM 4.5 Air wins 69% of the time. That's not luck.

Z.AI: GLM 4.5 Air particularly excels in Image Generation, Reasoning, Web Design. Z.AI: GLM 4.5 Air is 9.1x cheaper per token — worth considering if cost matters.

Clear winner
Writing DNA

Style Comparison

Similarity
100%

Z.AI: GLM 4.5 Air uses 9.9x more emoji

Z.AI: GLM 4.5 Air
GPT-5
48%Vocabulary65%
16wSentence Length13w
0.40Hedging0.20
5.4Bold0.2
4.8Lists4.6
0.10Emoji0.00
0.75Headings0.16
0.12Transitions0.03
Based on 15 + 16 text responses
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Z.AI: GLM 4.5 AirGPT-5

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