Compare Claude Opus 4.5 by Anthropic against Z.AI: GLM 4 32B by Zhipu AI, tested across 53 shared challenges. Updated April 2026.
Claude Opus 4.5 and Z.AI: GLM 4 32B are both competitive models. Compare their real outputs side by side below.
Claude Opus 4.5 is made by anthropic while Z.AI: GLM 4 32B is from zhipu.
No community votes yet. On paper, Claude Opus 4.5 has the edge — bigger model tier, newer.
Claude Opus 4.5 uses 15.2x more emoji
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 Claude Opus 4.5 by Anthropic against Z.AI: GLM 4 32B by Zhipu AI, tested across 53 shared challenges. Updated April 2026.
Claude Opus 4.5 and Z.AI: GLM 4 32B are both competitive models. Compare their real outputs side by side below.
Claude Opus 4.5 is made by anthropic while Z.AI: GLM 4 32B is from zhipu.
No community votes yet. On paper, Claude Opus 4.5 has the edge — bigger model tier, newer.
Claude Opus 4.5 uses 15.2x more emoji
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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48 fights queued
36+ 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