Z.ai
GLM-5.1Open
Z.ai open-weights reasoning model with strong agent tool use.
Intelligence
46.0 #385
Top 52% tier
Output Speed
74 t/s
ITL 13.5 ms/tok
Blended price (3:1)
$2.15 /1M
In $1.4/M · Out $4.4/M
Context
262K
≈ 655 A4 pages · max out 8,192
Quality Domain Radar
6-Axis Frontier Evaluation vs Category Average & Flagship
GLM-5.1
Claude Mythos Preview (#1)
Average (68)
Radar axes are approximated from category scores where direct benchmark measurements are missing — see Methodology.
API deployment
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Throughput, TTFT and cache pricing across Groq, Cerebras, Together, DeepInfra, Fireworks, Bedrock and Azure.
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Category Scores
Benchmark Results
Model Details
Release date
Mar 10, 2026
Parameters
Not disclosed
License
Open Weights
Context Window
262,000 tokens
Input Price
$1.4/M
Output Price
$4.4/M
Output Speed
74 t/s
Time to First Token
—
Estimated monthly bill
Estimated monthly spend
$0.00
Calculating savings vs GPT-4o...
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@misc{llmpodium2026glm51,
title = {Benchmark Analysis and Intelligence Evaluation of GLM-5.1},
author = {LLMPodium Research},
year = {2026},
url = {https://llmpodium.com/models/glm-5-1}
}Embed Score Badge
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