physical ai

For the past decade, artificial intelligence mostly lived on a screen. It answered questions, finished sentences, sorted images, and recommended the next thing to watch. That era is ending. The next wave of AI has hands, wheels, rotors, and sensors — and it’s being asked to operate reliably in warehouses, hospitals, farms, and city streets.

Two model classes get conflated in robotics conversations: vision-language models and vision-language-action models. They sound similar, both ingest images and text, and both come from the same lineage of multimodal pretraining. But for anyone trying to deploy an AI system that moves — not just describes — the distinction is decisive. VLM vs VLA is