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Open-Weight Models

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Wednesday, 2 September 2026

The Sequence Learning Loop - Issue 925: Learn About Fable and Mythos 5.1, GLM-5.3-Flash, and Qwen 3.8

TheSequence 1 month ago 49

The Sequence Learning Loop newsletter highlighted three recent model releases: Anthropic’s Claude Fable 5.1 and Mythos 5.1, Zhipu’s GLM-5.3-Flash, and Alibaba’s Qwen 3.8 family. Zhipu’s GLM-5.3-Flash is a 320B model that activates 18B parameters and ran for a week serving anonymous traffic on Chinese chips. Together, the releases push toward cheaper long-hours self-running use by mixing different approaches to model size, activation, and deployment constraints.

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Large Language Models Open-Weight Models Model Releases AI Efficiency

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