About The GPT Guy

I’m The GPT Guy (A.K.A. Dean J. Hartmann)—and I build AI that actually does something.

• Not demos.
• Not hype.
• Not “look what ChatGPT can do.”

I create practical, purpose-built GPTs that help creators, entrepreneurs, and businesses work faster, think clearer, and turn ideas into real, usable assets.

What I do is simple:

I take powerful AI models and turn them into focused tools—for writing, marketing, operations, planning, education, and growth—without requiring code, technical headaches, or AI guesswork.

Every GPT I build is designed with one goal in mind: leverage.

• Leverage your time.
• Leverage your expertise.
• Leverage your ideas.

Whether it’s a single GPT or a full marketplace, my work is about turning prompts into systems, systems into products, and products into repeatable results.

If you’re tired of AI feeling overwhelming—or underwhelming—you’re in the right place.

This isn’t about using AI. It’s about using it well.