GLM-5.2
LegacyFrontier
GLM-5.2 is Z.ai's open-weight model for long-horizon reasoning, coding, and agent workflows. Official Z.ai and Hugging Face materials document a one-million-token context window, flexible reasoning effort, a mixture-of-experts architecture, and MIT-licensed weights.
Newer version: GLM-5.3
Provider
Z.ai
Model family
Z.ai GLM
Open-weight MoE LLM
Cost tier
Flagship
Status
Legacy
Release Jun 16, 2026
Why teams choose it
🧠
GLM-5.2 is a strong candidate when open-weight control and one-million-token context matter together.
📎
Compare hosted API use with self-hosting only after accounting for serving hardware
quantization, observability, and model-risk ownership.
Tradeoffs to know
- The full model is large and operationally demanding despite sparse expert activation.
- Published context capacity does not replace retrieval design or long-context evaluation.
Benchmarks
No independent or vendor benchmark scores in this catalog entry.
Technical specs
- Inputs
- text
- Outputs
- text
- License
- MIT
- Parameter Count
- 753B total parameters (official model card)
- Capabilities
- reasoning
- coding
- agents
- long context
- tool use
- open-weight deployment
Z.ai GLM family lineup
Related models
GLM-5.2 FAQ
What is GLM-5.2?
GLM-5.2 is Z.ai's open-weight model for long-horizon reasoning, coding, and agent workflows. Official materials document a one-million-token context window and MIT-licensed weights.
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