OM1 is a modular AI runtime by OpenMind for building and deploying multimodal AI agents across digital environments and physical robots. Written in Python, OM1 ingests diverse sensor and web inputs, integrates multiple LLMs and VLMs, provides TTS/ASR endpoints, and connects to robot hardware via plugins (ROS2, Zenoh, CycloneDDS). It includes a web-based visual debugger (WebSim), example agents, documentation, and a technical paper, enabling developers to create configurable, upgradeable robot agents for humanoids, quadrupeds, mobile apps, and educational robots.