Open Deep Research

An AI-powered research assistant that performs iterative, deep research on any topic by combining search engines, web scraping, and large language models.

The goal of this repo is to provide the simplest implementation of a deep research agent - e.g. an agent that can refine its research direction overtime and deep dive into a topic. Goal is to keep the repo size at <500 LoC so it is easy to understand and build on top of.

If you like this project, please consider starring it and giving me a follow on X/Twitter. This project is sponsored by Aomni.

How It Works

flowchart TB
    subgraph Input
        Q[User Query]
        B[Breadth Parameter]
        D[Depth Parameter]
    end

    DR[Deep Research] -->
    SQ[SERP Queries] -->
    PR[Process Results]

    subgraph Results[Results]
        direction TB
        NL((Learnings))
        ND((Directions))
    end

    PR --> NL
    PR --> ND

    DP{depth > 0?}

    RD["Next Direction:
    - Prior Goals
    - New Questions
    - Learnings"]

    MR[Markdown Report]

    %% Main Flow
    Q & B & D --> DR

    %% Results to Decision
    NL & ND --> DP

    %% Circular Flow
    DP -->|Yes| RD
    RD -->|New Context| DR

    %% Final Output
    DP -->|No| MR

    %% Styling
    classDef input fill:#7bed9f,stroke:#2ed573,color:black
    classDef process fill:#70a1ff,stroke:#1e90ff,color:black
    classDef recursive fill:#ffa502,stroke:#ff7f50,color:black
    classDef output fill:#ff4757,stroke:#ff6b81,color:black
    classDef results fill:#a8e6cf,stroke:#3b7a57,color:black

    class Q,B,D input
    class DR,SQ,PR process
    class DP,RD recursive
    class MR output
    class NL,ND results

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Features

• Iterative Research: Performs deep research by iteratively generating search queries, processing results, and diving deeper based on findings
• Intelligent Query Generation: Uses LLMs to generate targeted search queries based on research goals and previous findings
• Depth & Breadth Control: Configurable parameters to control how wide (breadth) and deep (depth) the research goes
• Smart Follow-up: Generates follow-up questions to better understand research needs
• Comprehensive Reports: Produces detailed markdown reports with findings and sources
• Concurrent Processing: Handles multiple searches and result processing in parallel for efficiency

Requirements

• Node.js environment
• API keys for:
  • Firecrawl API (for web search and content extraction)
  • OpenAI API (for o3 mini model)

Setup

Node.js

1. Clone the repository
2. Install dependencies:

npm install

3. Set up environment variables in a .env.local file:

FIRECRAWL_KEY="your_firecrawl_key"
# If you want to use your self-hosted Firecrawl, add the following below:
# FIRECRAWL_BASE_URL="http://localhost:3002"

OPENAI_KEY="your_openai_key"

Docker

1. Clone the repository

2. Rename .env.example to .env.local and set your API keys

3. Run the Docker image:

docker compose run --rm deep-research

Usage

Run the research assistant:

npm start

You'll be prompted to:

1. Enter your research query
2. Specify research breadth (recommended: 3-10, default: 6)
3. Specify research depth (recommended: 1-5, default: 3)
4. Answer follow-up questions to refine the research direction

The system will then:

1. Generate and execute search queries
2. Process and analyze search results
3. Recursively explore deeper based on findings
4. Generate a comprehensive markdown report

The final report will be saved as output.md in your working directory.

Concurrency

If you have a paid version of Firecrawl or a local version, feel free to increase the ConcurrencyLimit in deep-research.ts so it runs a lot faster.

If you have a free version, you may sometime run into rate limit errors, you can reduce the limit (but it will run a lot slower).

Custom endpoints and models

There are 2 other optional env vars that lets you tweak the endpoint (for other OpenAI compatible APIs like OpenRouter or Gemini) as well as the model string.

OPENAI_ENDPOINT="custom_endpoint"
OPENAI_MODEL="custom_model"

How It Works

1. Initial Setup

   • Takes user query and research parameters (breadth & depth)
   • Generates follow-up questions to understand research needs better

2. Deep Research Process

   • Generates multiple SERP queries based on research goals
   • Processes search results to extract key learnings
   • Generates follow-up research directions

3. Recursive Exploration

   • If depth > 0, takes new research directions and continues exploration
   • Each iteration builds on previous learnings
   • Maintains context of research goals and findings

4. Report Generation

   • Compiles all findings into a comprehensive markdown report
   • Includes all sources and references
   • Organizes information in a clear, readable format

License

MIT License - feel free to use and modify as needed.