Z.AI: GLM 4.5 vs OpenAI o4 Mini High
Compare Z.AI: GLM 4.5 by Zhipu AI against OpenAI o4 Mini High by OpenAI, in 4 community votes, z.ai: glm 4.5 wins 100% of head-to-head duels, context windows of 128K vs 200K, tested across 54 shared challenges. Updated April 2026.
Which is better, Z.AI: GLM 4.5 or OpenAI o4 Mini High?
Z.AI: GLM 4.5 is the better choice overall, winning 100% of 4 blind community votes on Rival. Z.AI: GLM 4.5 costs $0.6/M input tokens vs $1.1/M for OpenAI o4 Mini High. Context windows: 128K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between Z.AI: GLM 4.5 and OpenAI o4 Mini High
Z.AI: GLM 4.5 is made by zhipu while OpenAI o4 Mini High is from openai. Z.AI: GLM 4.5 has a 128K token context window compared to OpenAI o4 Mini High's 200K. On pricing, Z.AI: GLM 4.5 costs $0.6/M input tokens vs $1.1/M for OpenAI o4 Mini High. In community voting, In 4 community votes, Z.AI: GLM 4.5 wins 100% of head-to-head duels.
In 4 community votes, Z.AI: GLM 4.5 wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 4+ human preference judgments for this pair.
Pick Z.AI: GLM 4.5. In 4 blind votes, Z.AI: GLM 4.5 wins 100% of the time. That's not luck.
Style Comparison
Z.AI: GLM 4.5 uses 545.8x more bold
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.
