GLM 4.7 Flash vs GPT-5.5
Compare GLM 4.7 Flash by Zhipu AI against GPT-5.5 by OpenAI, context windows of 200K vs 1.1M, tested across 54 shared challenges.
Our Verdict
GPT-5.5
GLM 4.7 FlashRunner-up
No community votes yet. On paper, GPT-5.5 has the edge — bigger model tier, newer, bigger context window.
GLM 4.7 Flash is 75x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
GLM 4.7 Flash
Input
$0.07
71× cheaper
Output
$0.40
75× cheaper
GPT-5.5
Input
$5.00
Output
$30.00
GLM 4.7 Flash is cheaper on both — 71× input, 75× output
Writing DNA
Style Comparison
Similarity
47%
GLM 4.7 Flash uses 3.7x more transitions
GLM 4.7 Flash
GPT-5.5
52%Vocabulary58%
15wSentence Length18w
0.33Hedging0.74
5.8Bold2.9
4.7Lists5.1
0.00Emoji0.00
0.68Headings1.68
0.13Transitions0.03
Based on 19 + 26 text responses
Research
What we learned reading every model
FAQ
