Extend is a platform designed to support the development and deployment of document processing systems powered by artificial intelligence. It enables users to build, test, and manage automated solutions for tasks such as document classification, information extraction, and document splitting. The platform is structured around several core components: Processors: AI models built within Extend to perform specific tasks. For example, Extractors are a type of processor that identifies and retrieves targeted information from documents. Workflows: These define the sequence and logic by which processors are applied to documents, allowing users to create automated processes tailored to their document handling requirements. Evaluation Sets: Collections of sample documents paired with expected outputs, used to assess and improve the performance of processors. Extend is intended for teams seeking a structured environment to iterate on document automation solutions with built-in tools for orchestration and evaluation.