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Physical Intelligence π0.7: The Generalist Robot Brain That Works | AI News | 2026 April 13-19

This week we surveyed the 4D Gaussian splatting frontier — video-to-3D reconstruction without classical photogrammetry pipelines — and dived deep into optical flow, feature tracking, and temporal world models. On the news side: Physical Intelligence (a Y Combinator robotics lab) released π0.7, a generalist transformer that controls humanoids, quadrupeds, and gripper arms across 150K real-world demonstrations with impressive generalization. Stanford's AI Index 2026 dropped with a headline finding: 53% of Fortune 500 companies now use AI in production (up from 35% in 2024). OpenAI acquired Hiro Finance, a derivatives-pricing platform, and is integrating it into ChatGPT's reasoning layer. NVIDIA's Ising quantum-AI framework hit production readiness for optimization workloads. Accenture committed $200M to General Robotics Corp to build enterprise deployment pipelines. And ICLR 2026 is kicking off next week — early agenda items signal robotics and world models as the dominant research themes. Our W16 4D Gaussian and video understanding series: - Trend — 4D Gaussian Frontier: https://artifocial.com/blog/4d-gaussian-frontier-2026-apr-17 - Basics — 4D Gaussian Splatting Explained: https://artifocial.com/blog/4d-gaussian-splatting-explained-2026-apr-17 - Basics — Video Understanding for 3D: https://artifocial.com/blog/video-understanding-for-3d-2026-apr-19 - NB 00 — 4D Gaussians from scratch: https://github.com/artifocial/tutorials/blob/main/2026-W16/00_4d_gaussians_from_scratch.ipynb - NB 01 — Video-to-3D toy example: https://github.com/artifocial/tutorials/blob/main/2026-W16/01_video_to_3d_toy.ipynb