China's Z.ai emerges as creator of mysterious Ox Alpha model

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 press release, and no company.

The Ox Alpha listing boasted a massive context window of over a million tokens (1,048,576) that could handle text, images, and video, and spit out up to 131,072 tokens. Most models can only handle 8,000 to 200,000 tokens.

Access to the model costs nothing. OpenCode, an open-source terminal agent, launched the model the same day and said it would stay free for a week, advertising provider capacity of 100 trillion tokens per day.

OpenRouter’s page says the mystery provider keeps prompts and completions but promises not to use them for training. Despite being completely anonymous for over a week, coding tools like Claude Code pushed billions of tokens of company code through it.

… Continue reading the full article at the original source below.