Mystery surrounds identity of new 'stealth' AI model Ox Alpha
A free new AI model called Ox Alpha appeared on OpenRouter on Thursday with its developer choosing to stay anonymous, sparking widespread online speculation about which company created it.
A mysterious new artificial intelligence model named Ox Alpha has sparked intense speculation across parts of the internet about who is actually behind it. The model was released for free on the OpenRouter platform on Thursday, where it was billed as a reasoning model built for coding tasks, sustained autonomous agentic work, and production-level workloads.
Stripe CEO Patrick Collison, whose company is in the process of acquiring OpenRouter, called Ox Alpha "very impressive" in a post on X.
Who built it?
The OpenRouter listing describes Ox Alpha as a stealth model, developed and operated by a third-party provider that has chosen to remain anonymous during this preview period. Much of the guesswork has centered on China. AI analyst Andrew Curran noted on Friday that early speculation pointed toward the GLM models made by Chinese firm Z.ai, though he said uncertainty had grown by the following morning.
Tech outlet Wccftech similarly first suggested evidence pointed toward GLM, before later updating its report to suggest Ox Alpha might instead be an unreleased version of Microsoft's MAI model. Meanwhile, opinions on Reddit remain split — some users insist the model cannot be Chinese-made, while others say they are highly confident that it is.
No official confirmation of the developer's identity has been provided, leaving the model's true origin unresolved for now.
