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It seems to be a paid version of https://github.com/mayooear/gpt4-pdf-chatbot-langchain https://github.com/mayooear/gpt4-pdf-chatbot-langchain It uses langchai

It seems to be a paid version of https://github.com/mayooear/gpt4-pdf-chatbot-langchain https://github.com/mayooear/gpt4-pdf-chatbot-langchain It uses langchain and pinecone to create a semantic index over the PDF content and search it based on question asked to sends the relevant information to openAI GPT api using embeddings.

sensibar 4y ago
No, it doesn't use langchain and yes it uses OpenAI.
- felipesabino 4y ago
  Care to elaborate? I mean, looking at the source code it clearly does use LangChain for PDF ingestion https://github.com/mayooear/gpt4-pdf-chatbot-langchain/blob/main/scripts/ingest-data.ts#L1 https://github.com/mayooear/gpt4-pdf-chatbot-langchain/blob/...
  - ffpip 4y ago
    He might mean the site chatpdf.com does not use langchain but uses the OpenAI API.
    - sensibar 4y ago
      Yes, that's what I meant.
nextworddev 4y ago
You absolutely don’t need Langchain for any of this.