Claude Sonnet 4
Nothing here. The model returned empty. We stared at it for a while.
Claude Sonnet 4 vs Z.ai: GLM 5
Compare Claude Sonnet 4 by Anthropic against Z.ai: GLM 5 by Zhipu AI, context windows of 200K vs 203K, tested across 33 shared challenges. Updated April 2026.
Which is better, Claude Sonnet 4 or Z.ai: GLM 5?
Claude Sonnet 4 and Z.ai: GLM 5 are both competitive models. Claude Sonnet 4 costs $3/M input tokens vs $0.8/M for Z.ai: GLM 5. Context windows: 200K vs 203K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Sonnet 4 and Z.ai: GLM 5
Claude Sonnet 4 is made by anthropic while Z.ai: GLM 5 is from zhipu. Claude Sonnet 4 has a 200K token context window compared to Z.ai: GLM 5's 203K. On pricing, Claude Sonnet 4 costs $3/M input tokens vs $0.8/M for Z.ai: GLM 5.
Our Verdict
Z.ai: GLM 5
Claude Sonnet 4Runner-up
No community votes yet. On paper, Z.ai: GLM 5 has the edge — bigger model tier, newer.
Z.ai: GLM 5 is 5.9x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
97%
Claude Sonnet 4 uses 87.9x more emoji
Claude Sonnet 4
Z.ai: GLM 5
62%Vocabulary54%
111wSentence Length17w
0.40Hedging0.37
5.0Bold6.3
9.3Lists4.7
0.88Emoji0.00
2.16Headings0.60
0.33Transitions0.18
Based on 17 + 22 text responses
vsAsk them anything yourself
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
FAQ