Build your own Q&A KnowledgeBot using GPT-Index & LangChain - Document to Chatbot

Опубликовано: 14 Май 2026
на канале: 1littlecoder

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In this Applied NLP LLM Tutorial, We will build our Custom KnowledgeBot using GPT-Index and LangChain. LangChain for accessing OpenAI and GPT-Index for Vector Index Building and Index Querying - Information Retrieval.

Timestamps:

00:00 Introduction to Q&A KnowledgeBot
02:58 OpenAI Q&A Bot Demo
04:11 Full Code Explanation
05:27 OpenAI API Key Secret Token
07:21 Input Document Text File for the ChatBot
08:15 Constructing GPT Vector Index
14:00 Constructing Ask Bot Python unction
16:40 Running KnowledgeBot Q&A
18:21 Summary and Closure

https://github.com/jerryjliu/gpt_index

https://github.com/hwchase17/langchain

https://github.com/amrrs/QABot-LangCh...

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