I built a custom GPT to help brainstorm startup ideas (no pitch decks, no growth hacks)

Most startup tools kick in after you already have a plan—pitch deck templates, fundraising guides, growth frameworks.
But what about the fragile stage before all that, when ideas are still sparks?

I built I, Origin as an experiment. It’s a custom GPT (ChatGPT Plus) that acts like a gentle companion:

Helps you explore your motivations

Asks open-ended questions

Summarizes into a “Seed Idea”

Even sketches diagrams or user journeys

It’s not diagnostic.
It’s not a pitch deck generator.
👉 Just a thinking partner for founders and dreamers.

Early feedback (from a Bay Area product leader) was positive: “It encouraged me to think freely, but I wanted it to eventually ask harder questions.”

That feedback inspired the follow-up: I, Founder (a GPT that stress-tests ideas like a VC would).

💬 Curious: How do you personally validate your startup ideas when they’re still fragile?

👉 Try the beta here: https://chatgpt.com/g/g-68a4e0ef47788191be449008c7f2254f-i-origin