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Z.ai open-sources GLM-5.3-Flash, formerly Ox Alpha, with 10x cost efficiency

This story is from 2026-08-26. It is preserved in the archive; the latest stories are on the live feed.

Z.ai released GLM-5.3-Flash, an open-weight model previously codenamed Ox Alpha, claiming 10 times greater cost efficiency than its predecessor. Zhipu AI's shares rose as the model was revealed to have run on 100,000 domestic Chinese chips.

Read the full story at South China Morning Post Tech ↗

Timeline · 4 reports

  1. 2026-08-27 08:30 · South China Morning Post Tech
    Zhipu AI shares jump as viral Ox Alpha model revealed as GLM-5.3-Flash on Chinese chips
  2. 2026-08-27 00:26 · SiliconANGLE AI
    Z.ai open-sources ‘Ox Alpha’ model as GLM-5.3-Flash
  3. 2026-08-26 15:17 · r/LocalLLaMA
    [Megathread] GLM-5.3-Flash - former ox-alpha
  4. 2026-08-26 14:37 · r/singularity
    GLM 5.3 Flash (Ox Alpha) benchmark comparisons

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