Anonymous Ox Alpha revealed as Zhipu's GLM-5.3-Flash after massive stealth test
TheTuringPost · x · 2026-08-28
The previously anonymous model "Ox Alpha" has been confirmed as Zhipu AI's GLM-5.3-Flash. Launched without branding, it gathered 8 million sessions and 24 trillion tokens of real-world testing in just 4 days. Developers stress-tested it with repositories, tools, and agent loops, even reverse-engineering the tokenizer. Zhipu confirmed this was a deliberate strategy to harvest feedback and stress-test the model at scale before the official release.
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