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Z.ai: GLM 5.1

z-ai/glm-5.1

Z.ai: GLM 5.1 (z-ai/glm-5.1) costs $1.4 per 1M prompt tokens and $4.4 per 1M completion tokens, has a 204,800-token context window, and supports tool calling, structured outputs, reasoning and response format. Data updated 2026-10-30.

Prompt price
$1.4 / 1M tokens
Completion price
$4.4 / 1M tokens
Context
204,800 tokens
Input modalities
text
Output modalities
text
Tokenizer
Other
Instruct type
—
Knowledge cutoff
—
Hugging Face
zai-org/GLM-5.1

Last price change: 2026-10-28

GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks. Unlike previous models built around minute-level interactions, GLM-5.1 can work independently and continuously on...

Price history

$4.4$0$ per 1M tokens2026-04-082026-10-28PromptCompletion

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