Users Suspect Zhipu Is Quietly Testing a New GLM 5.3 Model on z.ai

gnukeith · x · 2026-09-17

A user noticed a model labeled GLM 5.3 on z.ai getting interrupted every two seconds and suspects Zhipu may be quietly A/B testing an unreleased new GLM model — frequent truncation being a classic sign of a hidden model under test. Unconfirmed, user-side observation only.

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