Quivr is an advanced open-source, chat-powered productivity tool often referred to as a 'second brain'. It utilizes sophisticated AI technologies such as Langchain, GPT 3.5/4 Turbo, Private, Anthropic, VertexAI, and Ollama to seamlessly interact with your documents (such as PDF, CSV, and databases) and applications. Quivr's core functionality is empowered by retrieval-augmented generation that ensures confidentiality and allows knowledge sharing. The tool allows you to build a unified search engine across all your documents, thereby improving search relevance and knowledge discovery. It comes with a flexible configuration that asks you to select your source type, pick the relevant AI model, and insert prompt instructions to optimize your AI-powered search results. Quivr is a beneficial tool for different fields including engineering, customer support, sales, people management, knowledge management, and development, due to its continuous learning approach and its capabilities to interact with your data.