This is the last blog post in the AI series. In this blog post, I will share source code and a Video tutorial on using Open AI embedding with Langchain , Chroma vector database to talk to PDF file using Open with the concept known as RAG – Retrieval-Augmented Generation. We would use the Chroma database to store embedding vectors and save API costs from Open AI.
![Salesforce Langchain Python OpenAI AWS Lambda3](https://www.jitendrazaa.com/blog/wp-content/uploads/2023/12/Salesforce-Langchain-Python-OpenAI-AWS-Lambda3.png)
Talk to any PDF document using AI
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