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GLM-5.1

by Alibaba Token Plan (China) · family glm · listed Apr 2026RTW

Strong GLM coding model for agentic engineering, terminals, and repository generation

Current rates USD per 1M tokens

Inputfree

Outputfree

Cache readfree

Cache writefree

Against the market

Input price vs. maker flagships ($/1M tokens)

Output price vs. maker flagships ($/1M tokens)

On the record

Model id: glm-5.1
Context window: 203K tokens
Max output: 128K tokens
Input modalities: text
Output modalities: text
Reasoning: yes
Tool calls: yes
Open weights: yes
Knowledge cutoff: —
Released: 2026-04-07
Last updated: 2026-04-07
Provider docs: www.alibabacloud.com/help/zh/model-studio/token-plan-overview

Back of the envelope

Input M tokensOutput M tokens

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