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Cool Demos
Lots of people have built some pretty awesome stuff with LangChain. This is a collection of our favorites. If you see any other demos that you think we should highlight, be sure to let us know!
Open Source
YouTube Transcription Question Answering with Sources
An end-to-end example of doing question answering on YouTube transcripts, returning the timestamps as sources to legitimize the answer.
ThoughtSource
A central, open resource and community around data and tools related to chain-of-thought reasoning in large language models.
Notion Database Question-Answering Bot
Open source GitHub project shows how to use LangChain to create a chatbot that can answer questions about an arbitrary Notion database.
GPT Index
GPT Index is a project consisting of a set of data structures that are created using GPT-3 and can be traversed using GPT-3 in order to answer queries.
Grover's Algorithm
Leveraging Qiskit, OpenAI and LangChain to demonstrate Grover's algorithm
ReAct TextWorld
Leveraging the ReActTextWorldAgent to play TextWorld with an LLM!
Not Open Source
Daimon
A chat-based AI personal assistant with long-term memory about you.
Clerkie
Stack Tracing QA Bot to help debug complex stack tracing (especially the ones that go multi-function/file deep).
Sales Email Writer
By Raza Habib, this demo utilizes LangChain + SerpAPI + HumanLoop to write sales emails. Give it a company name and a person, this application will use Google Search (via SerpAPI) to get more information on the company and the person, and then write them a sales message.
Question-Answering on a Web Browser
By Zahid Khawaja, this demo utilizes question answering to answer questions about a given website. A followup added this for YouTube videos, and then another followup added it for Wikipedia.