How to Build a Generative AI Tool for Information Extraction from Receipts

DALLE-2’s interpretation of “A futuristic industrial document scanning facility”

Use LangChain and OpenAI tools to extract structured information from images of receipts stored in Google Drive

This article details how we can use open source Python packages such as LangChain, pytesseract and PyPDF, along with gpt-4-vision and gpt-3.5-turbo, to identify and extract key information from images of receipts. The resulting dataset could be used for a “chat to receipts” application. Check out the full code here.

Paper receipts come …

information extraction langchain llm openai python