Yasser Elsaid was born in Egypt, studied computer science at Cairo University, then moved to Canada for his undergrad at York University in Toronto. During his 3rd and 4th years, he landed internships at BlackBerry, Tesla, and Meta. The Meta internship didn't convert into a return offer. Then a new grad offer from his dream company was rescinded during the 2022-2023 tech layoffs. In hindsight, Yasser has said the Meta rejection "was the best thing that ever happened to him."
Inspired by indie hackers getting into AI (particularly Pieter Levels), Yasser started exploring the GPT-3 API two months before ChatGPT's API was publicly released. The concept was dead simple: upload a PDF and chat with its contents using AI. He built the MVP in roughly two weeks.
On February 4, 2023, Yasser launched Chatbase with a tweet to his 16 followers. It was literally his third tweet ever. No audience, no marketing budget, no launch strategy. Within 24 hours, thousands of people were trying it. His servers crashed twice. His inbox exploded. The timing was perfect: everyone was talking about ChatGPT but nobody had tools to use AI for their own data yet. Being first meant zero competition.
on feb 4th, 2023, I launched @chatbase_co to my 16 followers. I was in my final year of university with a full course load, and this was my third tweet ever. chatbase was the first chat with pdf saas tool, and all the hype around chatgpt at the time made it go viral.
He didn't even have a pricing page. Anyone could upload unlimited documents and send unlimited messages for free. As soon as he saw the traction, Yasser stopped doing anything university-related and focused 100% on Chatbase. He ended up failing two classes. He has publicly said it was "100% worth it."
By March 2023, one month in, Chatbase had $10K in revenue. By July, five months after launch, it hit $1M ARR. By August, $64K MRR. A college student with no audience had built a million-dollar business in half a year.
But competitors flooded in fast. ChatPDF, AskYourPDF, PDF.ai, and dozens of others appeared within months. The "chat with PDF" concept was trivially copyable. Yasser saw this coming and pivoted. Chatbase evolved from a simple PDF chatbot into a platform for building customer-facing AI agents. The agents could pull invoices from Stripe, book meetings via Calendly, update subscriptions, handle refunds. This had a much higher technical barrier to entry, which kept the copycats behind.
The growth strategy was almost entirely organic until $50K MRR. No ads, no sales team. Just tweets, Indie Hackers posts, and AI influencers sharing the tool. Only after $50K MRR did they start spending on Google Ads, and only because they had clear signals on what messaging worked.
Today, Chatbase has crossed $10M ARR with 18 people. 11 of those 18 are engineers. That's unusual at this revenue. Most companies shift resources toward sales and marketing. Yasser kept engineering disproportionately large because "the product is the moat." The tech stack is Next.js, React, Supabase, and OpenAI's API. 90% gross margins. 92% customer retention. Still bootstrapped. Zero VC. Built by a guy who got rejected from Meta and failed two college classes.
We just crossed $10M in ARR at @Chatbase! And today, we're launching Chatbase as the full harness for customer-facing AI agents. Similar to how Claude code is a harness for coding agents, Chatbase is the harness for customer experience agents.