Unidentified 'Ox Alpha' AI model on OpenRouter sparks guessing game over its maker
A free, high-performing AI model called Ox Alpha appeared on OpenRouter this week, listed only as a 'stealth model' built by an anonymous third party for coding and agentic tasks. Stripe CEO Patrick Collison praised it publicly, fueling widespread speculation across X and Reddit about its origin, with theories ranging from China's Z.ai GLM models to an unreleased Microsoft MAI build.