Z.ai released GLM-5.2 under the MIT License, which is on the Open Source Initiative’s approved list; the GLM-5.3 weights use the GLM-5.3 License, which is not.
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If the Licensee or any of its affiliates operates a Model as a Service business, and the aggregate revenue of the Licensee and its affiliates exceeds 10 billion US dollars (or the equivalent in other currencies) in total over any consecutive 12 months, the Licensee must pass Z.AI's security review before using the Software or its derivative works for any commercial purpose. The scope and method of the security review shall be reasonably determined by Z.AI.
On open weightsGLM-5.3 is the most cyber-capable open-weight model released to date.
CAISI estimates a roughly four-month lag against the U.S. frontier in an aggregate measure of performance on its cyber benchmarks. The comparison is time-specific and is not a claim about all capabilities. The page describes its item-response-theory method and uncertainty intervals.
The August 14 launch post deferred weights for two weeks for safety evaluation and hardening. The August 28 release post confirms availability. The weight license requires a Z.AI security review when a licensee or affiliate operates a Model as a Service business and aggregate revenue exceeds $10 billion over any consecutive 12 months. Z.AI determines the review scope and method. The previous license shown is the MIT License on GLM-5.2, which remains under MIT.
If the Licensee or any of its affiliates operates a Model as a Service business, and the aggregate revenue of the Licensee and its affiliates exceeds 10 billion US dollars (or the equivalent in other currencies) in total over any consecutive 12 months, the Licensee must pass Z.AI's security review before using the Software or its derivative works for any commercial purpose. The scope and method of the security review shall be reasonably determined by Z.AI.
Every entry cites one primary source, quotes the document’s own words about open weights, and is checked against that source before it publishes. Corrections keep the old wording visible. Methodology · Corrections · Suggest an entry or a correction
