Extend - 2026 Pricing, Features, Reviews & Alternatives

Extend is a document processing infrastructure platform that enables AI agents and automated workflows to parse, extract, split, classify and edit complex documents with high accuracy. The solution serves as an API interface for organizations that convert unstructured documents into structured, machine-readable data for downstream processing. The primary audience includes AI development teams, financial services firms, healthcare organizations, real estate companies and logistics providers that handle high volumes of complex documents. The platform addresses environments requiring precise data extraction and automated document processing.

The platform offers five core endpoints to meet distinct document processing requirements. The parse endpoint converts unstructured documents into contextual markdown using advanced layout detection models that identify tables, checkboxes, images, handwriting and signatures. The extract endpoint transforms document content into structured data based on user-defined schemas. The split endpoint segments multi-document files into individual subdocuments for separate processing. The classify endpoint assigns documents to predefined categories and the edit endpoint detects form fields and enables programmatic completion. A hybrid computer vision and language model pipeline routes each document element to specialized models optimized for specific content types. This solution supports multiple performance modes configured for speed, cost or accuracy and handles twenty-five file types in more than one hundred languages with four distinct chunking strategies.

Operational features include confidence scoring that flags uncertain outputs before deployment. The Composer Agent automatically refines extraction schemas through iterative optimization. The platform provides workflow orchestration for multi-step processing pipelines with built-in versioning and durability. A studio interface offers evaluation capabilities that enable non-technical domain experts to iterate on schemas and validate results without command-line scripting.

Deployment options include both cloud-hosted and self-hosted environments to accommodate varying security and compliance requirements. The platform maintains SOC two, HIPAA and GDPR certifications with regular third-party penetration testing to support regulated industry needs. Self-hosted deployments run on user infrastructure while retaining equivalent functionality, performance characteristics and feature set with the cloud offering. Integration into existing development workflows is supported through Python, TypeScript and command-line interface implementations with comprehensive API documentation for technical teams.