From 16 Followers to $10M ARR in Three Years

Half Baked Newsletter May 29th.jpg

The Idea: In early 2023, Yasser Elsaid was a computer science student at York University in Toronto. He completed an internship at Meta, but the return offer never came, a blow that, in hindsight, he'd call the best thing that ever happened to him. Watching indie hackers like Pieter Levels start building on OpenAI's API, Yasser saw something most people hadn't clocked yet: you could feed your own data into these new GPT models and make them answer questions about it. He built the simplest possible version, "ChatGPT for your PDFs", over about two months. You upload a document, you chat with its contents. He stopped doing anything university-related and eventually failed two classes chasing it, a trade he'd say was 100% worth it. This was the beginning of Chatbase.

The Execution

February 2023: Yasser tweeted his "chatbot from any PDF" demo to 16 followers; it went viral and he abandoned his coursework to chase the traction full-time.
Mid 2023: Chatbase crossed 2,000,000 visitors within months and reached 2,200 paying customers, hitting $1M ARR in just 117 days from launch as a solo founder.
2023: Built in roughly 60 days, kept ~90% gross margins and profitable from early on, with zero outside funding.
February 2024: On its one-year anniversary, Yasser posted that Chatbase had broken $3M ARR, captioned simply "Intensity wins."
August 2024: Hit $4M ARR in under two years, driven by organic content, influencer marketing, paid ads and SEO.
December 1, 2025: Chatbase crossed $8M ARR, still 100% bootstrapped, with over 10,000 customers, and announced its pivot from chatbots to a full customer-facing AI agent platform.
Today: Chatbase has crossed $10M ARR, bootstrapped, in under three years, serving more than 10,000 businesses.

The lesson? Yasser shipped "ChatGPT for your PDFs" to just 16 followers, with no pricing page and no validation, while failing two university classes to do it. Most founders spend that window researching the market. He spent it building for one. The edge in a brand-new category isn't being right about where it's going. It's being live before anyone else has decided it's real.