Article

ChatGPT vs Perplexity Deep Research: business ideas test

Greg Isenberg · gregisenberg.com

A startup operator runs the same $5M ARR brief through both tools and shows the raw outputs.

Open on gregisenberg.com ↗

The question it answers

  1. How do founders run 'deep research' to get report-quality answers?

Read with it

  1. The primary source that defined the deep research category, with benchmark data and honest limitations. openai.com Article Introducing deep research OpenAI
  2. Video Introduction to Deep Research (launch demo from Tokyo) OpenAI
  3. Video OpenAI's Deep Research Agent in 8 Minutes YouTube explainer
  4. The official how-to including query limits per plan, so you spend your monthly runs wisely. help.openai.com Guide Deep research in ChatGPT (Help Center) OpenAI
  5. The free-tier option: near report quality in under 3 minutes, ideal for bootstrapped founders. perplexity.ai Article Introducing Perplexity Deep Research Perplexity
  6. Google's launch post explaining the plan-approve-refine flow Gemini pioneered. blog.google Article Try Deep Research and our new experimental model in Gemini Google
eChai Partner Brands The partnership →