Claude 3.7 Sonnet vs Z.ai: GLM 5.2
Compare Claude 3.7 Sonnet by Anthropic against Z.ai: GLM 5.2 by Zhipu AI, in 2 community votes, z.ai: glm 5.2 wins 100% of head-to-head duels, context windows of 200K vs 1.0M, tested across 54 shared challenges.
Our Verdict
Z.ai: GLM 5.2Winner
Claude 3.7 SonnetRunner-up
Pick Z.ai: GLM 5.2. In 2 blind votes, Z.ai: GLM 5.2 wins 100% of the time. That's not luck.
Z.ai: GLM 5.2 is 3.4x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
Claude 3.7 Sonnet
Input
$3.00
Output
$15.00
Z.ai: GLM 5.2
Input
$1.40
2.1× cheaper
Output
$4.40
3.4× cheaper
Z.ai: GLM 5.2 is cheaper on both — 2.1× input, 3.4× output
Writing DNA
Style Comparison
Similarity
52%
Claude 3.7 Sonnet uses 3.6x more hedging
Claude 3.7 Sonnet
Z.ai: GLM 5.2
62%Vocabulary56%
35wSentence Length18w
0.99Hedging0.27
1.2Bold3.7
4.3Lists2.8
0.00Emoji0.00
1.78Headings0.56
0.23Transitions0.24
Based on 13 + 27 text responses
Research
What we learned reading every model
FAQ
