Allen Institute for Artificial Intelligence Releases (AI2) DR-Tulu: “An Open, End-To-End Training Recipe For Long-Form Deep Research”

From an Allen Institute for Artificial Intelligence (AI2) Announcement:Deep research is about building agentic systems that can plan, search, and synthesize information from diverse sources to produce in-depth, well-attributed answers to complex questions. Done well, these capabilities could accelerate scientific discovery and allow students and professionals to explore unfamiliar domains with expert-level rigor, backed by transparent citations and reasoning traces.
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To address these chall