As proponents of the DirectX API, which single-handedly shaped consumer 3D graphics market for the past decade and a half, it shouldn't come as a shocker, that Microsoft's next-generation entertainment platform, the Xbox One, will not support AMD's ambitious Mantle project, a 3D API that's tailor-made for the company's Graphics CoreNext GPU micro-architecture, on which the GPU driving the Xbox One is based. The company released a statement to that effect mentioning that "other APIs" such as OpenGL and AMD Mantle won't be supported on Xbox One. Says Microsoft;
We are very excited that with the launch of Xbox One, we can now bring the latest generation of Direct3D 11 to console. The Xbox One graphics API is "Direct3D 11.x" and the Xbox One hardware provides a superset of Direct3D 11.2 functionality. Other graphics APIs such as OpenGL and AMD's Mantle are not available on Xbox One.
The Xbox One will support DirectX 11.2, an evolution over DirectX 11, which adds support for a new feature called "Tiled resources," which lets 3D apps more efficiently manage available hardware resources, by streaming portions of single large textures as a 3D scene being rendered demands it. It heralds a kind of virtual memory system for the GPU, and Microsoft could encourage game developers to take advantage of it, for their Xbox One titles. Such a feature already exists with OpenGL.Source: Microsoft