GLM 5.1

GLM 5.1

Developer	Z.ai
Release date	April 7, 2026
Family	GLM
Generation	GLM 5.1
Level
Context window	205K tokens
Max output	131K tokens
Input	Text
Output	Text
Weights	Open weights
Predecessor	GLM 5
Successor	GLM 5.2
Website	z.ai
Links	Model card Hugging Face

Part of a series on

input: $1.40
cached: $0.26
output: $4.40
Context: 205Ktokens
Released: 7mo ago
Size: 754Bparameters

Specifications

Model

Developer: Z.ai
Family: GLM GLM 5.1
Type: Language model
Released: April 7, 2026
Model ID: z-ai/glm-5.1

Capabilities

Input → output: Text → Text
Max output: 131K tokens
Tokenizer: Other

Weights

Openness: Open weights
Size: 754B
Hugging Face: zai-org/GLM-5.1

Sources:models.devOpenRouter

Metadata synced Nov 5, 2026, 8:01 AM UTC

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