SMRTR AIJul 21, 2026Daily.dev

How I Built a Deep Research Engine with Reasoning Models

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A developer built a deep research engine that goes beyond simple chatbots by running an iterative search-and-reason loop — searching the web, identifying knowledge gaps, and searching again before writing a cited report. Unlike basic AI chatbots that hallucinate facts, this pipeline uses reasoning models like OpenAI's o3-mini or DeepSeek-R1 to deliver accurate, sourced answers.

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