Compare Z.AI: GLM 4.5 by Zhipu AI against GPT-5 Mini by OpenAI, in 3 community votes, gpt-5 mini wins 100% of head-to-head duels, tested across 55 shared challenges. Updated April 2026.
GPT-5 Mini is the better choice overall, winning 100% of 3 blind community votes on Rival. Z.AI: GLM 4.5 costs $0.6/M input tokens vs $0.25/M for GPT-5 Mini. Compare their real outputs side by side below.
Z.AI: GLM 4.5 is made by zhipu while GPT-5 Mini is from openai. On pricing, Z.AI: GLM 4.5 costs $0.6/M input tokens vs $0.25/M for GPT-5 Mini. In community voting, In 3 community votes, GPT-5 Mini wins 100% of head-to-head duels.
In 3 community votes, GPT-5 Mini wins 100% of head-to-head duels. GPT-5 Mini leads in Reasoning. Based on blind community voting from the Rival open dataset of 3+ human preference judgments for this pair.
Pick GPT-5 Mini. In 3 blind votes, GPT-5 Mini wins 100% of the time. That's not luck.
GPT-5 Mini particularly excels in Reasoning.
Z.AI: GLM 4.5 uses 545.8x more bold
Ask 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.

Compare Z.AI: GLM 4.5 by Zhipu AI against GPT-5 Mini by OpenAI, in 3 community votes, gpt-5 mini wins 100% of head-to-head duels, tested across 55 shared challenges. Updated April 2026.
GPT-5 Mini is the better choice overall, winning 100% of 3 blind community votes on Rival. Z.AI: GLM 4.5 costs $0.6/M input tokens vs $0.25/M for GPT-5 Mini. Compare their real outputs side by side below.
Z.AI: GLM 4.5 is made by zhipu while GPT-5 Mini is from openai. On pricing, Z.AI: GLM 4.5 costs $0.6/M input tokens vs $0.25/M for GPT-5 Mini. In community voting, In 3 community votes, GPT-5 Mini wins 100% of head-to-head duels.
In 3 community votes, GPT-5 Mini wins 100% of head-to-head duels. GPT-5 Mini leads in Reasoning. Based on blind community voting from the Rival open dataset of 3+ human preference judgments for this pair.
Pick GPT-5 Mini. In 3 blind votes, GPT-5 Mini wins 100% of the time. That's not luck.
GPT-5 Mini particularly excels in Reasoning.
Z.AI: GLM 4.5 uses 545.8x more bold
Ask 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.

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50 fights queued
38+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy