GLM 5 Turbo vs GPT-4.1
Compare GLM 5 Turbo by Z-ai against GPT-4.1 by OpenAI, context windows of 203K vs 1.0M, tested across 53 shared challenges.
Our Verdict
GPT-4.1
GLM 5 TurboRunner-up
No community votes yet. On paper, GPT-4.1 has the edge — bigger model tier, bigger context window, major provider backing.
Too close to call
API pricing
Cost per 1M tokens
GLM 5 Turbo
Input
$0.96
2.1× cheaper
Output
$3.20
2.5× cheaper
GPT-4.1
Input
$2.00
Output
$8.00
GLM 5 Turbo is cheaper on both — 2.1× input, 2.5× output
Writing DNA
Style Comparison
Similarity
26%
GPT-4.1 uses 23.7x more emoji
GLM 5 Turbo
GPT-4.1
54%Vocabulary58%
18wSentence Length19w
0.24Hedging0.38
4.0Bold9.0
3.0Lists6.1
0.00Emoji0.24
0.72Headings1.01
0.17Transitions0.07
Based on 23 + 25 text responses
Research
What we learned reading every model
FAQ
Common questions
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