Introduction to Deep Research (launch demo from Tokyo)
Watch the team that built it run real queries so you see what a good brief looks like.
Watch on YouTube youtube.com →
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How do founders run 'deep research' to get report-quality answers?
Deep research modes in ChatGPT, Gemini, Perplexity and Claude are agents: you give a detailed brief, approve the research plan, and 5 to 30 minutes later get a long cited report built from dozens or hundreds of sources. The quality depends almost entirely on your brief, so specify scope, geography, timeframe, output structure and what sources to prefer. Treat the report as a strong first draft from a junior analyst and spot-check the claims that matter.
Go deeper
19 resources.
OpenAI's Deep Research Agent in 8 Minutes
The fastest way to grasp the plan-browse-synthesize loop before you spend a query.
Watch on YouTube youtube.com →
No Priors Ep. 112: OpenAI Deep Research with Isa Fulford
The researcher who built deep research explains how it thinks, which makes you a better prompter.
Watch on YouTube youtube.com →
Deep Research Battle: Gemini beats ChatGPT, Perplexity & Grok
A same-prompt shootout so you can judge output quality differences yourself.
Watch on YouTube youtube.com →OpenAI's Deep Research on Training AI Agents End-to-End (Training Data)
Isa Fulford and Josh Tobin on what the agent is actually good and bad at, from the source.
Open sequoiacap.com →Introducing deep research
The primary source that defined the deep research category, with benchmark data and honest limitations.
Open openai.com →Deep research in ChatGPT (Help Center)
The official how-to including query limits per plan, so you spend your monthly runs wisely.
Open help.openai.com →Introducing Perplexity Deep Research
The free-tier option: near report quality in under 3 minutes, ideal for bootstrapped founders.
Open perplexity.ai →Try Deep Research and our new experimental model in Gemini
Google's launch post explaining the plan-approve-refine flow Gemini pioneered.
Open blog.google →How to use Google's Deep Research: official tips
Short official playbook on editing the research plan and asking for report revisions.
Open blog.google →Gemini Deep Research overview
One page on capabilities and supported inputs, useful before committing to a tool.
Open gemini.google →How I'm using Deep Research (prompting walkthrough)
A widely shared operator thread: use a strong model to write your deep research prompt first.
Open x.com →My Ultimate DeepResearch Prompt Builder Template
A fill-in-the-blanks system that reliably turns vague questions into report-grade briefs.
Open ahmadosman.com →ChatGPT vs Perplexity Deep Research: business ideas test
A startup operator runs the same $5M ARR brief through both tools and shows the raw outputs.
Open gregisenberg.com →Deep Research: ChatGPT vs. Gemini. Who wins?
A prompting-focused comparison that shows how brief quality changes the winner.
Open newsletter.learnprompting.org →ChatGPT Deep Research: How It Works and When to Use It
A clear practitioner explainer of the five-step pipeline behind the reports.
Open gend.co →We tested two Deep Research tools. One was unusable.
A blunt business-lens review that saves you from trusting the wrong tool for client-facing work.
Open sectionai.com →Introduction to deep research in the OpenAI API (Cookbook)
For technical founders: wire deep research into your own product or internal tools.
Open developers.openai.com →awesome-deep-research-prompts (GitHub)
A living library of proven deep research prompts across OpenAI, Gemini and Qwen.
Open github.com →More in Search & Research
- Why use AI (ChatGPT, Perplexity, Claude, deep research modes) instead of Google? 18 →
- How do I fact-check AI answers and avoid hallucinations? 19 →
- Which AI research tool should I actually use: ChatGPT, Claude, Gemini, Perplexity, or Grok? 18 →
- How do I write research prompts that get consistently better answers? 18 →
- How do founders use AI for market research and market sizing (TAM/SAM/SOM)? 18 →
- How do I use AI for competitor research and ongoing competitor monitoring? 18 →
- How can AI help me understand my customers: interview analysis, synthesis, and user research? 18 →
- How do I get my startup recommended and cited in AI answers (AEO/GEO)? 17 →
- How do I use NotebookLM to research my own documents, notes, and transcripts? 19 →
- What can AI agents and agentic browsers (ChatGPT agent, Comet, Operator) do for my research, and are they worth it? 19 →
- Google clicks are collapsing because of AI answers. What does that mean for my startup's traffic and distribution? 19 →
- Is it safe to paste confidential company data into AI tools while researching? 19 →
Also in Starting Up
The same ground, over in Understand your customers, our Starting Up track.
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