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google / langextract

A Python library for extracting structured information from unstructured text using LLMs with precise source grounding and interactive visualization.

Why this job: works in the areas we cover, but does not say which job it does

LangExtract end to end: unstructured text is chunked, extracted in parallel by an LLM, and every extracted value is grounded back to its exact character span in the source

What it does

LangExtract is a Python library that uses LLMs to extract structured information from unstructured text documents based on user-defined instructions. It processes materials such as clinical notes or reports, identifying and organizing key details while ensuring the extracted data corresponds to the source text.

Get started

No single install command. Read the steps in the README (opens in new tab)

Maintenance
Active
Last commit 2 days ago
Stars
39,304
+43 this week
Licence
Apache-2.0
Allows business use
Downloads for
None listed
No release files
Latest version
v1.7.2
Released 5 days ago
Built with
Python
100% of the code

Is it looked after?

Contributors
Not stated
Last 90 days
Issues
67% closed
74 still open
Pull requests
155 merged
42 waiting
Releases
21
11 in the last year

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More: languages, topics and project record

Languages

  • Python 100%
  • Shell <1%
  • Dockerfile <1%

Topics

  • llm
  • nlp
  • python
  • gemini-ai
  • information-extration
  • large-language-models
  • structured-data
  • gemini
  • gemini-api
  • gemini-flash
  • gemini-pro

Project record

  • JobOther AI tools
  • StatusListed
  • Commits209
  • Forks2,753
  • Watching167
  • Stars in 28 days+396
  • CreatedJul 8, 2025
  • First seen by usNov 7, 2026
  • CheckedNov 10, 2026

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