Generate startup ideas & business plans with GPT-4.1, Perplexity Sonar & Claude Sonnet

This workflow contains community nodes that are only compatible with the self-hosted version of n8n.

🚀 Start-up Ideas Generator – From Idea to Executive Summary in Minutes Description: This AI-powered n8n workflow helps you brainstorm and validate start-up ideas, perform market research using Perplexity Sonar, and automatically generate a professional business plan — all within minutes.

It’s designed for entrepreneurs, accelerators, venture studios, and ideation teams looking to go from a single prompt to a detailed proposal ready to pitch or develop.

Watch step-by-step build video of n8n workflows like this: https://www.youtube.com/@Automatewithmarc

Setup Instructions Required Credentials:

OpenAI API Key – For GPT-4.1 Perplexity Sonar Access Token – For deep research Anthropic Claude API Key – For business plan writing

Google Service Account Credentials – To write to Docs How It Works: 💬 Chat Trigger  Start the process by typing a simple request like “Give me a few start-up ideas in AI tech.”

🧠 AI Research Agent (OpenAI + Perplexity Sonar)  The system defines the research scope, taps into Perplexity AI for deep market scans, and outputs high-potential business opportunities including: