google/langextract
Langextract
Langextract is a framework designed to transform unstructured text into structured, machine-readable data using language model orchestration. It provides a high-performance pipeline that processes large volumes of narrative text by utilizing parallel execution and sequential extraction passes. The library is built to handle complex data extraction tasks, including specialized support for clinical information and medical entity relationship recognition.
The project distinguishes itself through a plugin-based architecture that supports both local hardware execution and cloud-hosted model endpoints. By providing a unified abstraction layer, it allows users to switch between different inference providers without modifying core application logic. The framework enforces output consistency through schema-guided generation and prompt-driven templates, ensuring that extracted entities adhere to predefined formats.
Beyond its core extraction capabilities, the library includes administrative utilities for managing model authentication, custom provider registration, and system integration testing. It supports scalable workflows through batch processing and chunked document analysis, while offering interactive visualization tools to verify extracted results against original source text. Data can be exported in standard formats to facilitate integration with external analysis environments.