Blog
deep-research · 9 min read · APRIL 6, 2026
Deep Research API: Moving Beyond Web Search to Internal Data
Deep research APIs let AI agents iteratively search, reason, and synthesize across internal documents — going beyond basic RAG. Learn how they work, how they differ from web deep research, and when you need one.
Robert Chung
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announcement · 2 min read · FEBRUARY 15, 2026
Introducing Charcoal
We raised $2.5M led by Mischief to build the retrieval API purpose-built for AI agents.
Charcoal Team
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