Z.ai open-sources ‘Ox Alpha’ model as GLM-5.3-Flash

SiliconANGLEAugust 27, 2026en

Z.ai Co. today released the code for GLM-5.3-Flash, a large language model that’s 10 times more cost-efficient than its predecessor. The algorithm made its original debut last week under the codename Ox Alpha. LLM marketplace operator OpenRouter Inc. launched a free hosted version of Ox Alpha and didn’t disclose its developer, which drew a significant […] The post Z.ai open-sources ‘Ox Alpha’ model as GLM-5.3-Flash appeared first on SiliconANGLE .

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