Z.ai: GLM 5.2 vs Inception: Mercury 2
Compare Z.ai: GLM 5.2 by Zhipu AI against Inception: Mercury 2 by Inception, context windows of 1.0M vs 128K, tested across 53 shared challenges.
Our Verdict
Z.ai: GLM 5.2
Inception: Mercury 2Runner-up
No community votes yet. On paper, Z.ai: GLM 5.2 has the edge — bigger model tier, newer, bigger context window, major provider backing.
Inception: Mercury 2 is 5.9x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
Z.ai: GLM 5.2
Input
$1.40
Output
$4.40
Inception: Mercury 2
Input
$0.25
5.6× cheaper
Output
$0.75
5.9× cheaper
Inception: Mercury 2 is cheaper on both — 5.6× input, 5.9× output
Writing DNA
Style Comparison
Similarity
34%
Inception: Mercury 2 uses 8.2x more emoji
Z.ai: GLM 5.2
Inception: Mercury 2
56%Vocabulary53%
18wSentence Length22w
0.27Hedging0.40
3.7Bold6.6
2.8Lists2.6
0.00Emoji0.08
0.56Headings0.87
0.24Transitions0.14
Based on 27 + 23 text responses
Research
What we learned reading every model
FAQ
