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Z.AIFebruary 1, 2026

GLM-5

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Z.ai Launches GLM-5.2: A 753B Open-Source MoE with a True 1M Context Window

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Z.ai Launches GLM-5.2: A 753B Open-Source MoE with a True 1M Context Window

Z.ai has open-sourced GLM-5.2, a flagship 753B parameter MoE model boasting a 1M-token context window, variable thinking-effort levels, and an MIT license.

### TL;DR

GLM-5 is Z.AI's latest flagship foundation model, designed for complex system engineering and long-range agentic tasks. It features a parameter scale of 744 billion, an expanded pre-training dataset of 28.5 trillion tokens, and integrates DeepSeek Sparse Attention for efficient long-context processing.

Key Insights & Metrics

Pricing
Pricing details are not specified in the provided sources.
Cost structure
Version
5
Current release version
Hardware
Specific hardware requirements are not detailed in the provided sources.
Compute requirements
Category
Open Source
Licensing model
Region
China
Primary region

Key Features

  • 744 billion parameters
  • 28.5 trillion tokens pre-training data
  • DeepSeek Sparse Attention for efficient long-context processing

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