The Startup Ideas Podcast
The Startup Ideas Podcast
Greg Isenberg
OpenAI DevDay: Dots, Agents & $100B Opportunities
18 minutes Posted Sep 29, 2026 at 9:25 pm.
– Intro
– Dots, the Personal Agent Platform
– OpenAI Doubles Down on Plugins
– Decisions API
– Agents API With Computer Use
– Sign In With ChatGPT
– Where should you build?
– Idea: Real-World Work APIs
– Idea: Analytics for Agent Discovery
–Closing Thoughts
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Show notes
I watched almost 60 minutes of Sam Altman on stage at OpenAI Dev Day 2026. Out of 20-plus launches, I pick the three or four that I think can make people billions of dollars in aggregate. I break down Dots, OpenAI's personal agent platform, plus the Decisions API, the Agents API with computer use, and Sign in with ChatGPT. I also share my four-step framework for building in this world and two business ideas I hope someone takes. If you want to build a business and make money around AI, this episode is for you.
Timestamps
Key Points
Dots gives plugin builders a front door to 1.2 billion weekly active users.
OpenAI is doubling down on plugins to make ChatGPT the app ecosystem for AI.
Sign in with ChatGPT lets users bring their current plan, so a free core app with paid upsells now works.
Workflows too niche for OpenAI to build become viable businesses.
The strongest businesses in this world own the trigger, the action, and the feedback.
Two open opportunities: real-world work APIs and an analytics layer for agent discovery
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