Comparison
Glm 5.1 vs Glm 4.5
Side-by-side comparison of xAI Glm 5.1 and xAI Glm 4.5. Pricing, quality benchmarks, and context windows.
Quality Benchmarks
LiveBench / 0-100
Glm 5.1
72.1Frontier
Glm 4.5
72.0Frontier
Glm 5.1
Glm 4.5
Input Price (per 1M)
$1.05
$0.6000
Output Price (per 1M)
$3.50
$2.20
Context Window
202.8K
131.1K
Max Output
65.5K
98.3K
Pricing per 1M Tokens
$1.05
Input
Input
$0.6000
43% cheaper
Input
$3.50
Output
Output
$2.20
37% cheaper
Output
Token Limits
Context
202.8K
Context
Context
131.1K
Max Output
65.5K
Max Output
Max Output
98.3K
Tools
Tools
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