How to Build a Powerful Deep Research System
Last Updated on November 13, 2025 by Editorial Team
Author(s): Eivind Kjosbakken
Originally published on Towards AI.
Learn how to access vast amounts of information with your own deep research system
Deep research is a popular feature you can activate in apps such as ChatGPT and Google Gemini. It allows users to ask a query as usual, and the application spends a longer time properly researching the question and coming up with a better answer than normal LLM responses.
This article explores the concept of a deep research system, discussing its advantages over simpler methods like keyword searches and RAG systems. It emphasizes the importance of gathering and indexing information from various sources, creating effective tools for querying data, and integrating an orchestrator agent with subagents to provide comprehensive answers to user queries. Additionally, it provides guidance on building such a system to enhance the quality of responses in applications.
Read the full blog for free on Medium.
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