GLM 4.5 AirvsMuse Spark 1.3
GLM 4.5 Air is cheaper than Muse Spark 1.3 at $0.2/M vs $1.25/M input tokens.
| Spec | GLM 4.5 Air | Muse Spark 1.3 |
|---|---|---|
| Input price | $0.2/M tokens | $1.25/M tokens |
| Output price | $1.1/M tokens | $4.25/M tokens |
| Context window | 128K tokens | 1.0M tokens |
| Released | Jul 2025 | Sep 2026 |
Our Verdict
Muse Spark 1.3
GLM 4.5 AirRunner-up
Not enough votes to call it. On the specs, Muse Spark 1.3 has the edge: newer, bigger context window.
GLM 4.5 Air costs 3.9x less per token.
Too close to call
API pricing
Cost per 1M tokens
GLM 4.5 Air
Input
$0.20
6.3× cheaper
Output
$1.10
3.9× cheaper
Muse Spark 1.3
Input
$1.25
Output
$4.25
GLM 4.5 Air is cheaper on both — 6.3× input, 3.9× output
Writing DNA
Style Comparison
Similarity
45%
GLM 4.5 Air uses 31.7x more emoji
GLM 4.5 Air
Muse Spark 1.3
50%Vocabulary59%
18wSentence Length14w
0.40Hedging0.28
5.1Bold2.6
4.3Lists2.3
0.32Emoji0.00
0.66Headings0.48
0.09Transitions0.02
Based on 27 + 27 text responses
Research
What we learned reading every model
FAQ
Common questions
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