A mysterious free AI model is impressing developers. And nobody knows who made it.

The model appeared on OpenRouter, a platform that hosts AI models, as a 'stealth model' from an anonymous third-party provider. According to the report, Ox Alpha has a million-token context window. The identity of the model's developer has not been made public. The article does not provide further details about the model's specific capabilities.

The report states that OpenCode, which appears to be involved in the model's distribution, said Ox Alpha would be free for a week with near unlimited usage. OpenCode said the model's provider had capacity for 100 trillion tokens per day. Stripe CEO Patrick Collison is quoted as saying the model is 'very impressive.' The article does not name the provider or explain why the model was released without attribution. The excerpt does not clarify OpenCode's relationship to the provider.

The model's mix of free access, a large context window, and strong performance have raised interest among developers. The article also indicates that the model is available through OpenRouter, where it appeared as a stealth model. No additional details about the provider or the model's future availability were included in the excerpt. The article frames Ox Alpha's anonymity as a central point of interest.