Question 1

What is GPT Researcher?

Accepted Answer

GPT Researcher is an open-source autonomous AI research agent that gathers and validates information from multiple web sources in parallel, then writes a long-form research report with inline citations. It supports any LLM (OpenAI, Anthropic, Google, Mistral, DeepSeek, local via Ollama) and any retriever (Tavily, Bing, Google, DuckDuckGo, SearXNG).

Question 2

How do I use GPT Researcher with Claude or ChatGPT?

Accepted Answer

Use the official gptr-mcp Model Context Protocol server (github.com/assafelovic/gptr-mcp). It registers as an MCP server in Claude Desktop, Cursor, ChatGPT custom GPTs, n8n, and any MCP-compatible client, and exposes tools like deep_research, quick_search, and write_report.

Question 3

Is GPT Researcher free?

Accepted Answer

Yes. GPT Researcher is MIT-licensed and free to use. The only operating cost is whatever you pay your underlying LLM and search-API providers.

Question 4

How does GPT Researcher compare to Perplexity or OpenAI Deep Research?

Accepted Answer

GPT Researcher ranked #1 on Carnegie Mellon University's DeepResearchGym benchmark (May 2025), ahead of Perplexity Deep Research and OpenAI Deep Research. Unlike those products, GPT Researcher is open source: you control the LLM, the retriever, and the deployment.

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