GLM

Overview

This is a model family overview. For version-specific details, see the individual model entries linked below.

GLM is Z.ai’s (formerly Zhipu AI’s) flagship model family and one of the core Chinese ecosystems for production language-model use. The lineup blends hosted frontier tiers with open-weight releases, giving teams flexibility across API-first and self-managed deployment strategies.

Current Latest

GLM-5.2 is the current GLM reference point. Released on June 16, 2026, it expands the family to a 1M-token context and introduces IndexShare sparse-attention infrastructure for long-horizon coding and agent work. The model is available through Z.ai’s hosted surfaces and as MIT-licensed public weights. GLM-5.1 remains an active older 203K-context route.

Strengths

• Strong Chinese and bilingual reasoning quality for enterprise and consumer assistants.
• Strong coding and tool-use behavior in multi-step workflows.
• Flexible mix of API and open-weight deployment paths.
• A 1M-token context option in the current GLM-5.2 generation.
• Permissive MIT licensing on recent open-weight releases.
• Rapid iteration cadence with clear upgrade paths.

When to Choose GLM

Choose GLM when Chinese-language performance is a top requirement and you want optionality between managed APIs and open deployment. It is especially useful for bilingual assistant products, coding copilots, and internal analysis systems where regional quality and cost both matter.

Access

• Z.ai API, Chat, Coding Plan, and hosted model platform
• Official open-weight releases on Hugging Face
• Third-party inference providers and cloud integrations