Chinese internet hunts Ox Alpha origins via viral cow movie

A mysterious AI model appeared on the model-hosting platform OpenRouter last week, uploaded by an unnamed third party. It is temporarily free with near-unlimited usage, and early developer tests show it performs well on coding tasks and long-running AI agent jobs. The model is called Ox Alpha.

No company has claimed it. The Chinese internet has its own theory.

Over the weekend, users on Weibo noticed the word "Ox." That led them to nickname the model "Niu Lai" – the title of a low-budget Chinese animated film that became one of the country's biggest internet memes this summer. The film, released August 5, has a title that translates to "Here Comes the Ox." It was voiced and produced by a mother-son duo. The plot follows a timid newborn calf that follows a songbird into an abstract dream sequence. Fewer than 300 tickets were sold in its first 10 days, according to local media reports.

Then clips and jokes about its unpolished quality exploded online. Filmgoers flocked to cinemas out of curiosity. The cow memes – including an unintentionally hilarious moment where the calf bellows for its mother – flooded Chinese social media. By Monday, "Niu Lai" had grossed 45 million yuan, or about $6.7 million, at China's box office.

"There's a Chinese movie in theaters called 牛来 (Niu Lai) which roughly translates to 'bull is coming' or 'ox coming,'" one user wrote on X on Sunday. "I don't see why any American/EU lab would use codename Ox?"

Some Weibo users called the model "Bull Demon King," a reference to the Chinese literary classic "Journey to the West." Others floated Xiaomi or Z.ai as possible creators.

"The mysterious Ox King is shaking up Silicon Valley and kicking off a 'guess the father' competition," one tech blogger from Beijing wrote. "Whose 'masterless bull model king' is this? The answer may already be written in the code fingerprint."

Not everyone is convinced. On Reddit's r/singularity, commenters said Ox Alpha's willingness to discuss politically sensitive Chinese topics made a Chinese origin less likely. Chatbots developed for the Chinese market tend to give government-aligned answers on the 1989 Tiananmen Square crackdown and Taiwan's political status, while refusing criticism of Chinese politicians. Other researchers reported that the model sometimes gave official-line responses and identified technical similarities with Z.ai's GLM models.

Dozens of Google employees joined the speculation with tongue-in-cheek posts over the weekend. "What if the Ox Alpha was the friends we made along the way," wrote Evan Otero, a technical staffer at Google DeepMind.

No company has claimed Ox Alpha at press time. China's AI industry has grown rapidly in the last two years. Labs including Alibaba, DeepSeek, Moonshot AI, and Tencent have released increasingly powerful and often open-weight models. Chinese models have narrowed the gap with US rivals, with users citing their capabilities and lower costs compared with OpenAI and Anthropic models.