Z.AI: GLM 4.5 Air vs Qwen: Qwen3.5 Plus 2026-02-15
Compare Z.AI: GLM 4.5 Air by Zhipu AI against Qwen: Qwen3.5 Plus 2026-02-15 by Qwen, context windows of 128K vs 1.0M, tested across 53 shared challenges.
Our Verdict
Qwen: Qwen3.5 Plus 2026-02-15
Z.AI: GLM 4.5 AirRunner-up
No community votes yet. On paper, Qwen: Qwen3.5 Plus 2026-02-15 has the edge — bigger model tier, newer, bigger context window.
Too close to call
API pricing
Cost per 1M tokens
Z.AI: GLM 4.5 Air
Input
$0.20
2.0× cheaper
Output
$1.10
2.2× cheaper
Qwen: Qwen3.5 Plus 2026-02-15
Input
$0.40
Output
$2.40
Z.AI: GLM 4.5 Air is cheaper on both — 2.0× input, 2.2× output
Writing DNA
Style Comparison
Similarity
69%
Z.AI: GLM 4.5 Air uses 1.6x more lists
Z.AI: GLM 4.5 Air
Qwen: Qwen3.5 Plus 2026-02-15
48%Vocabulary54%
16wSentence Length18w
0.40Hedging0.51
5.4Bold5.3
4.8Lists2.9
0.10Emoji0.10
0.75Headings0.75
0.12Transitions0.09
Based on 15 + 23 text responses
Research
What we learned reading every model
FAQ
