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We just shipped GLM 5.3 and GLM 5.3 Flash in Posit AI Pass! GLM 5.3 Flash is now the cheapest model available via the subscription (half the price of Gemma 4 26B A4B per-token!) and I've been so, so impressed with it. GLM 5.3 is Ox Alpha, the anonymous model that was popping off on OpenRouter.

Simon P. Couch

@simonpcouch.com

To use the model, open up Posit Assistant in RStudio or Positron and update when prompted. Then, find it in the model selector. :)

2/9/26, 7:03 pm0 reposts1 like

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