Z.ai

weights

open(MIT)

data

closed

code

open(inference)

license

MIT(OSI)

MIT weights on the current release, data closed, no training pipeline, so 3. Z.ai moved to MIT partway through the family: GLM-4 and GLM-4-9B carried the GLM-4 License, which requires commercial-use registration and a 'Built with GLM' attribution and scored 2, while GLM-4.6, GLM-5.1 and GLM-5.2 are plain MIT. GLM-5.2 governs as the current release. Capability 5 comes from the GLM-5 line; the GLM-4 line scored 2.

• https://huggingface.co/zai-org/GLM-5.2/blob/main/LICENSE recorded 2026-08-13

  "MIT License / Copyright (c) 2026 Zhipu AI / Permission is hereby granted, free of charge ... without restriction" - the unmodified MIT text.

• https://huggingface.co/api/models/zai-org/GLM-5.2 recorded 2026-08-13

  card license `mit`, `gated: false`, `private: false`, 2,662,328 downloads and 4,944 likes; no corpus declared on the card.

• https://api.github.com/repos/zai-org/GLM-5 recorded 2026-08-13

  `private: false`, `archived: false`, license `Apache-2.0`, 6,943 stars, description "GLM-5: From Vibe Coding to Agentic Engineering". Inference and deployment code, published.