I just watched a fascinating Marketing Against the Grain video featuring Greg Eisenberger, who shared some incredible insights about building million-dollar businesses with AI. As someone who’s been in the digital marketing space for years, I was blown away by how accessible these opportunities have become.
What struck me most was Greg’s practical approach. He didn’t just talk theory—he showed actual tools, prompts, and frameworks anyone can use right now. Let me share my thoughts on the three most promising paths he outlined.
Finding Untapped Niches with AI-Powered Research
The first approach uses AI to identify underserved markets with real pain points. Greg demonstrated a tool called IdeaBrowser that scrapes Reddit and Facebook groups to find problems people are actively discussing.
What makes this approach powerful is that it’s based on actual conversations happening online—not guesswork. For example, the tool uncovered a surprising opportunity in cemetery management software for small cemeteries still using paper records.
While this might sound grim, it’s exactly the kind of unsexy niche that can be wildly profitable because:
- There’s less competition from other entrepreneurs
- The problem is real and painful for users
- The market size is substantial ($320 million)
- The technology to solve it is now accessible to anyone
Greg emphasized something I’ve always believed: ideas DO matter. Finding the right niche idea based on a trend in a world where you can build almost anything with AI can completely change your trajectory.
Building Chat GPT Apps for the New Ecosystem
The second approach focuses on creating apps for Chat GPT’s ecosystem. With 800 million weekly active users and growing, this represents a massive opportunity.
What I found most interesting was Greg’s framework for coming up with Chat GPT app ideas. The goal is to build SDK-native apps that Chat GPT automatically surfaces when people ask for help with specific tasks—like getting a mortgage, planning a wedding, or launching a newsletter.
Think of it like SEO in the early days. If your app becomes the first thing Chat GPT suggests when someone asks for help with a high-value keyword, you could build a substantial business.
“If you want to create not a $1 million idea, but like a $10 million plus idea…try to own a high-value keyword, solve a specific high-intent request that Chat GPT can’t handle natively, and have a custom UI that’s visual.”
There’s also money to be made building these apps for companies. Greg mentioned that his design firm is creating GPT apps for Fortune 500 companies with “infinite demand.” Even if you don’t have those relationships, you could build apps for small businesses at a few thousand dollars each or $50-100 monthly subscriptions.
Creating AI Video Content to Build Audiences
The third approach leverages new AI video tools like Sora and V3 to create attention-grabbing content that builds audiences you can monetize.
Greg shared the example of PJ Ace, who’s generated 300 million views with his AI-created ads that look like Super Bowl commercials. The process involves:
- Writing scripts with Chat GPT and Claude
- Using tools like FreePick to create consistent images
- Storyboarding the frames in Figma
- Using video generators to create the final product
The power of this approach is in building attention. As Greg put it, “It’s an AI gold rush, but it’s also an attention gold rush.” Once you have that audience, you can either sell products to them or monetize the audience itself.
The Real Secret: Validate Before You Build
What resonated with me most was Greg’s emphasis on validation before building. Too many entrepreneurs waste time creating products nobody wants.
His advice? Use AI to research thoroughly (which now takes hours instead of weeks), validate your idea with potential customers, and only then start building. As he said, “Slow down, my friend. Spend time over here.”
This is something I’ve seen repeatedly in my years working with entrepreneurs. Your first idea is rarely your million-dollar business. Even Instagram started as a Foursquare competitor called Bourbon before pivoting to focus on photos.
The beauty of these AI-powered approaches is that they dramatically speed up the idea validation process, letting you find winning concepts faster than ever before.
Whether you choose to build a niche product, create a Chat GPT app, or build an audience with AI-generated videos, the opportunities are there for anyone willing to take action. The tools have never been more accessible—now it’s just a matter of putting them to work.
