Build a PDF Document Question Answering System with Apache Cassandra, Astra DB, LangChain & GPT-4 Explore how to build a Q&A system on PDF File's using AstraDB's Vector DB with Langchain and OpenAI API's Click to open the Notebook directly in Google Colab To view the video or click on the image below If you like my work, you can support me by buying me a coffee by clicking the link below 🛠 Languages & Tools Used: Follow Me Show your support by starring the repository 🙂