Lightmatter is a computer hardware company that uses integrated photonics to create processors. It combines electronics, photonics, and various algorithms to create a computing platform purpose-built for artificial intelligence. The company offers Passage, a wafer-scale, programmable photonic interconnect that enables arrays of heterogeneous chips to communicate; Idiom, interfaces with standard deep learning frameworks and model exchange formats; and Envise, a machine learning accelerator that combines photonics and transistor-based systems.