By Matthew Gallagher built a huge company using AI and he did it in a very unusual way.
He started his company, Medvi, in just two months with only $20,000. From his home in Los Angeles, he used AI tools to do almost everything.
AI helped him:
- Write the code for his software
- Create website content
- Make images and ads
- Handle customer service
- Track business performance
For the things he couldn’t do, he hired outside help.
Fast Growth With Almost No Team
Medvi is a telehealth company that sells weight-loss medicines online.
The growth was incredibly fast:
- 300 customers in the first month
- 1,000 more in the second month
- $401 million in sales in the first year (2025)
After that, Matthew hired just one employee — his brother Elliot.
Now, the company is expected to reach $1.8 billion in sales, with basically just two people running it.
AI Is Changing How Companies Work
In the past, building a billion-dollar company needed large teams and huge budgets.
Now, AI is changing that.
Even OpenAI CEO Sam Altman has said that in the future, one person could build a $1 billion company using AI something that was impossible before.
Today, tools like ChatGPT, Midjourney, and others are helping entrepreneurs build and grow businesses much faster.
Big Companies Are Also Using AI
It’s not just small startups.
Big companies like Pinterest and Block are also using AI to improve efficiency. Some have even reduced their workforce because AI can do certain tasks faster and cheaper.
Matthew’s Journey
Matthew didn’t come from a rich background. He had a difficult childhood and taught himself coding at a young age.
He started small:
- Built websites as a teenager
- Sold products online
- Created a watch business (which didn’t succeed much)
Later, when AI tools like ChatGPT became available, he saw a big opportunity.
How He Built Medvi Using AI
Matthew used many AI tools, including:
- ChatGPT, Claude, and Grok for writing and coding
- Midjourney and Runway for images and videos
- AI voice tools for customer communication
He also used platforms that provided doctors and pharmacies, so he didn’t need to build everything from scratch.
This allowed him to focus on marketing and growth, which made a big difference.
Challenges Along the Way
Even with AI, things weren’t perfect.
- The chatbot sometimes gave wrong information
- Customers ended up calling him directly
- A small website mistake once stopped all orders for an hour
But he kept improving the system step by step.
Why He Keeps His Team Small
Matthew believes having fewer people helps him:
- Move faster
- Make quick decisions
- Keep costs low
He had tried a bigger team before in his old business, and it didn’t work well.
That’s why he only hired his brother and a few contractors.
Expanding the Business
After success with weight-loss drugs, Medvi started growing into other areas:
- Men’s health products
- Meal delivery plans
- Soon: women’s health, skincare, and more
The company already has hundreds of thousands of customers and strong profits.
Giving Back
Matthew is now earning millions and is no longer struggling financially.
He has:
- Donated money to charity
- Started a foundation
- Plans to help homeless youth
He says this success changed his life completely.
Human Touch Still Matters
Even with AI, he realized that people still want human connection.
So now, some customers are assigned real account managers who talk to them and build relationships.
These managers also use AI to handle many customers at once.
Final Thought
Matthew’s story shows how powerful AI can be.
With the right skills and tools, even a small team or just one person can build something huge.
But it also shows that AI is a tool, not magic. Success still needs smart decisions, effort, and creativity.