Zai open-sources 320B GLM-5.3, claims full training on domestic chips

SumitGup · x · 2026-08-27

Zai has released GLM-5.3-Flash (previously Ox Alpha), a 320B-parameter MoE model (18B active) featuring native multimodality and a 1M-token context window under the MIT license. The company emphasizes that the model was trained and is served entirely on domestic Chinese AI chips, demonstrating significant infrastructure capabilities amidst hardware constraints. Weights, APIs, and implementation examples for coding and tool use are now available across official platforms.

Related event: Zhipu Open-Sources GLM-5.3-Flash with Frontier Performance at Low Cost(48 posts)→

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