Anthropic's Phase Two of Project Fetch has Claude Opus 4.7 completing a four-task robotic quadruped challenge nearly 19× faster than a human team with AI assistance and generating a tenth of the code — through no robotics-specific training. The robot still can't autonomously retrieve the beach ball. That combination of dramatic capability transfer and stubborn physical limits tells you something interesting about where general AI scaling is and isn't working.
Alibaba's Qwen-Robot Suite breaks the physical AI problem into three specialized models — navigation, manipulation, and world prediction — sharing a common foundation but targeting different action spaces. The interesting architectural decision is the canonical state-action representation that lets all three train on heterogeneous robot data without task-specific pipelines.
NVIDIA's Cosmos 3 bets on collapsing the physical AI model stack — VLM understanding, video world simulation, and robot action generation — into a single Mixture-of-Transformers architecture where reasoning and diffusion paths share joint attention. The key question is whether that coupling actually beats specialist models, or whether this is mainly a convenience story.
