What Is Ox Alpha? Inside The Viral 1M-Context Stealth AI Model
Ox Alpha has quickly become one of the most discussed AI models among developers, despite arriving without a public developer name or traditional launch campaign. The model appeared on OpenRouter on August 20, 2026, through an unnamed third-party provider and is designed for coding, complex reasoning, sustained agentic tasks, and production workloads. Its biggest headline feature is a 1,048,576-token context window, along with support for up to 131,072 output tokens. It can process text, images, and video, while also supporting tool calling and structured JSON responses. The model's combination of capabilities and anonymous origins helped fuel its rapid popularity. OpenRouter currently lists prompt and completion tokens at zero cost, while OpenCode promoted free access for a limited period. OpenCode also reported significant usage, including 26 trillion Ox Alpha tokens processed in four days, highlighting the level of interest surrounding the model. However, the current free pric...