Z.AI: GLM 4.5 Air vs GPT-4
Compare Z.AI: GLM 4.5 Air by Zhipu AI against GPT-4 by OpenAI, context windows of 128K vs 8K, tested across 26 shared challenges. Updated April 2026.
Which is better, Z.AI: GLM 4.5 Air or GPT-4?
Z.AI: GLM 4.5 Air and GPT-4 are both competitive models. Z.AI: GLM 4.5 Air costs $0.2/M input tokens vs $30/M for GPT-4. Context windows: 128K vs 8K tokens. Compare their real outputs side by side below.
Key Differences Between Z.AI: GLM 4.5 Air and GPT-4
Z.AI: GLM 4.5 Air is made by zhipu while GPT-4 is from openai. Z.AI: GLM 4.5 Air has a 128K token context window compared to GPT-4's 8K. On pricing, Z.AI: GLM 4.5 Air costs $0.2/M input tokens vs $30/M for GPT-4.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Z.AI: GLM 4.5 Air is 55x cheaper per token — worth considering if cost matters.
Style Comparison
Z.AI: GLM 4.5 Air uses 9.9x more emoji
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
