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Deep Research Agents

Research agents that automatically search, read, cross-verify multiple sources, and generate cited reports.

Scoring method (open_source_ai_tools_v1): 40% GitHub activity (time-decay since last push) + 40% stars (log-normalized within category) + 20% license permissiveness, minus 5 points if archived. Last generated: 2026-09-13T07:03:13.193747+00:00

#1 9.75

GPT Researcher

Full open-source deep research agent

+ 29421 GitHub stars (top of category)
+ recently active
+ permissive license (Apache-2.0)
#2 8.76

SurfSense

Competitive intelligence, continuous monitoring, and research knowledge-base platform

+ 16132 GitHub stars (top of category)
+ recently active
#3 6.78

DeepSearcher

Private documents, vector database, and deep search

+ 8262 GitHub stars (top of category)
+ permissive license (Apache-2.0)
#4 4.19

Open Deep Research

Configurable deep research agent in the LangGraph ecosystem

+ 12677 GitHub stars (top of category)
+ recently active
+ permissive license (MIT)
- repository archived

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