Originally published on rohitraj.tech
An open-source deep research agent now sits at #1 on DeepResearch Bench — ahead of OpenAI, Gemini, and Perplexity. So you no longer have to rent deep research from a frontier lab. This is the builder\'s read on the four worth self-hosting in 2026 — Onyx, DeerFlow 2.0, Perplexica/Vane, and Khoj — with live star counts, a runnable Docker self-host, an honest comparison table, when to skip self-hosting entirely, and the production wiring the READMEs leave out.
Read the full version with code samples, diagrams, and architecture details: Best Open-Source Deep Research Agent to Self-Host in 2026 (Onyx vs DeerFlow vs Perplexica)
More engineering notes: rohitraj.tech/en/notes
Top comments (0)