The New Stack · Frederic Lardinois ·

Z.ai releases GLM-5.3's weights under a new license requiring companies with $10B+ in revenue over 12 months to pass Z.ai's security review to host the model

Earlier in August, Z.ai, the Chinese AI lab behind the viral ox-alpha model that turned out to be GLM-5.3-Flash, launched its flagship GLM-5.3 model.

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Z.ai releases GLM-5.3's weights under a new license requiring companies with $10B+ in revenue over 12 months to pass Z.ai's security review to host the model

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The New Stack — Z.ai releases GLM-5.3's weights under a new license requiring companies with $10B+ in revenue over 12 months to pass Z.ai's security review to host the model ↗

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Aug 28Aug 30

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Z.ai: Z.ai releases GLM-5.3-Flash, the first natively multimodal GLM-5 series model, with 320B parameters, and says it served the model as Ox Alpha on Chinese chips

VentureBeat: Z.ai prices GLM-5.3 API access at $1.40/1M input tokens and $4.40/1M output tokens, unchanged from GLM-5.2; Kimi K3 costs $3/1M input and $15/1M output tokens

Reuters: Z.ai says GLM-5.3 scores 84.5% on CyberGym, vs. Mythos 5's 83.8%, and its most sensitive cybersecurity functions will only be available to verified users

Mistral AI Blog: Mistral says its platform will support third-party open models, starting with Z.ai's GLM-5.2, and run them on the same infrastructure as its own models

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