The stealth model that beat DeepSeek belongs to Zhipu
Z.AI made it. The Beijing company, also known as Zhipu, owns the free model that took the top of OpenRouter’s charts last weekend.
It confirmed on Wednesday that Ox Alpha is a new iteration of its GLM series, and said it would release the weights the same night.
Luz Ding got the confirmation for Bloomberg. We wrote about Ox Alpha on Saturday, when nobody knew whose servers it ran on.
It doubled DeepSeek’s usage while anonymous
Ox Alpha appeared on OpenRouter with no name attached to it, listed only as coming from a third-party provider. Bloomberg dates that to the weekend and CTGT to 20 August, which was the Thursday before.
It went to the top spot, more than doubling DeepSeek’s use. Bloomberg reports it as the biggest launch in the marketplace’s history.
Patrick Collison, whose company Stripe is acquiring OpenRouter, called the stealth release “very impressive”.
The code...
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