Cartesia offers real-time multimodal intelligent technology aimed at servicing various devices. Key products include two main functionalities: Sonic and On-Device. Sonic is a fast, hyper-realistic generative voice API driven by next-generation state space models. On-Device provides real-time models capable of rapid, private, offline inference on users' devices. Cartesia's product background is rooted in meeting users' demands for real-time intelligent services, particularly concerning privacy and speed. The products are positioned to provide efficient and secure technological solutions to support intelligent applications across devices.