Anonymous AI Model "Ox Alpha" Appears on OpenRouter, Draws Collison Endorsement and Press Scrutiny

An anonymous reasoning model called Ox Alpha appeared on OpenRouter on August 20, 2026, offered free with no named developer. OpenRouter describes it as a "stealth model." Within three days, Stripe CEO Patrick Collison called it "very impressive" on X, and Bloomberg reported on the speculation. The model's creator remains unidentified.