Surprise: Z.ai is the AI lab behind the mysterious Ox Alpha model
The model topped OpenRouter’s usage charts and more than doubled DeepSeek’s use before Z.ai said it would release the weights.
- On Wednesday, Z.ai confirmed that Ox Alpha is the newest iteration of its GLM series, announcing plans to release the model's weights after its anonymous debut on OpenRouter topped usage charts.
- Stealth releases are becoming a habit for Chinese firms like Alibaba and Xiaomi; Z.ai's code name, Niu Lai, comes from a film released in China recently.
- Research firm CTGT published a behavioral fingerprint on Monday, finding Ox Alpha carries a system prompt to hide its provenance and answers Western topics like an American model.
- Stripe's Patrick Collison called the release "very impressive," while testing firm Irregular's Dan Lahav said open weight models "have a very important part to play" in AI security.
- Z.ai is offering the model free for one week as it prepares to file its first detailed earnings report covering six months since January, using the launch to observe performance in the wild.
11 Articles
11 Articles
Mystery solved: Chinese lab Z.ai says it’s behind the Ox Alpha model that wowed Silicon Valley
Z.ai, the Chinese AI company also known as Zhipu, is behind Ox Alpha, the free model that captivated developers.CFOTO/Future Publishing via Getty ImagesThe mystery maker of Ox Alpha is the Chinese tech company Z.ai.The free model drew developer attention after appearing anonymously on OpenRouter last week.Ox Alpha impressed tech leaders and set off a hunt for its anonymous creator.Chinese tech company Z.ai says it was behind the mysterious free …
Ox Alpha answers on Taiwan and shuts down on Xi
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. […] This story continues at The Next Web
Ox Alpha mystery solved, powerful AI model on OpenRouter is made by this Chinese company
Z.AI has confirmed that the mysterious Ox Alpha model on OpenRouter belongs to its GLM family. The disclosure follows a viral free rollout that pushed the model to the top of the platform's usage charts.
Z.ai named as maker of Ox Alpha, the stealth coding model that gripped developers
Chinese lab Z.ai has been identified as the company behind Ox Alpha, the anonymous coding model. The model drew millions of developer queries on OpenRouter over the past week. Who created Ox Alpha? The Chinese lab called Z.ai has been credited with the creation of Ox Alpha, a coding model that has exploded in popularity over the past week, drawing millions of developers. The model was released on OpenRouter on August 20, carrying no logo, no …
Z.ai, a Chinese company, developed the Ox Alpha model, which led the OpenRouter rating ahead of DeepSeek.
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