Robbyant, an embodied AI company within Ant Group, announced the open-source release of LingBot-World 2.0 (Infinity) on July 9, 2026. This interactive world model supports hour-long continuous generation, 720p/60fps high-definition real-time output, and richer interactive actions, integrating a native agent mechanism that evolves generated worlds to be "sustainably interactive and dynamically evolving". The model uses a Causal Pretraining Paradigm with a proprietary MoBA (Mask of Bidirectional Attention) mechanism to eliminate compounding errors in long-horizon generation. In rigorous hour-long stress tests, the model maintains visual fidelity with zero quality drift. Alongside the open-source release, Robbyant distilled a dedicated fast inference version and optimized the generation pipeline, available on the Reactor platform for simultaneous generation, transmission, and display. The model supports diverse character actions including attacking, shooting arrows, casting spells, jumping, and gliding, as well as global events like day-night cycles, weather changes, and entity injection via text commands. A dual-agent mechanism features a Pilot Agent for character behaviors and a Director Agent for introducing new events. The model supports multiple users within a single persistent world for collaborative exploration.