GLM-5.3 vs GPT-6 Astra
Which is the better AI model in 2026? Here's how they compare.
Domain intelligence profile
Artificial Analysis Intelligence Index by domain (0–100). Missing dimensions show as 0.
Head to head
GLM-5.3
GPT-6 Astra
Intelligence
31.7
56.9
Engineering
37.6
61.8
Legal
35.8
55.6
Finance
42.1
57.4
Healthcare
39.3
53.7
Economics
37.3
57.2
Strategy & Ops
47.4
58
Context window
1,048,576
1,050,000
Output price
$4.4/1M
$50/1M
Input price
$1.4/1M
$10/1M
Speed (t/s)
73
47
Knowledge cutoff
—
2026-04-30
Open weights
Yes
No
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