[Tencent Hunyuan Open Sources the First Post-Training Framework for Reinforcement Learning in World Models: WorldCompass] According to 1M AI News, Tencent Hunyuan's 3D team has open-sourced the first post-training framework for reinforcement learning in world models, named WorldCompass. WorldCompass is a reinforcement learning (RL) post-training framework specifically designed for long-sequence, interactive world models. If world models are the engine, then WorldCompass is the precise 'compass,' introducing reinforcement learning mechanisms to directly 'guide' the model on how to more accurately follow user instructions to explore the world while maintaining long-sequence visual consistency.