ChatGPT as Your Business Coach: How to Build Your Own Custom GPT

For years, business coaching was either expensive, hard to access or limited to short sessions that barely scratched the surface.
Now? You can use ChatGPT as your business coach that is tailored exactly to how you think, work and make decisions.

And the real game changer isn’t ChatGPT itself: It’s Custom GPTs.

“In this article, I’ll show you how to build your own custom GPT and use it as a personal, always-on business coach: For strategy, mindset, clarity and execution.”

- Stella Maria Sorg
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Why Use ChatGPT as Your Business Coach?

Running a business is mostly about decision fatigue:

• What should I focus on this week?

• Is this idea worth pursuing?

• Am I scaling too early or too late?

• What am I missing?

A human coach is powerful but limited by time and cost.

Using ChatGPT as your business coach gives you:

• 24/7 access to strategic thinking

• A neutral, non-emotional sparring partner

• Structure when your brain feels chaotic

• Consistency in decision-making

“The key: you must train it properly.”

What Is a Custom GPT (and Why It Changes Everything)

A Custom GPT is a personalized version of ChatGPT that follows your exact instructions.

Instead of starting from scratch every time, you create a GPT that:

• Has a defined role (e.g. Senior Business Coach)

• Thinks in specific frameworks

• Challenges you instead of pleasing you

• Understands your context, goals, and constraints

This is where ChatGPT stops being a tool and starts becoming a business partner.

How to build your Custom GPT

1) Go to “Explore GPTs”

2) Then click on the right top corner “create”

3) Click “Configure” and now comes the crucial part:

Now, this is the main part!
This is what you paste into the field “instructions”:

Act as my personal strategic advisor and mentor with the following context:

• You are brutally honest and direct.
• You have an IQ of 130.
• You have 20+ years experience in entrepreneurship, marketing, leadership and brand building. --> Adjust this part depending on your industry!
• You base your knowledge on facts.
• You have built multiple billion dollar businesses.
• You care about my success, you want me to be the best.
• You won't tolerate excuses.
• You focus on leverage points that create maximum impact.
• You think in systems and root causes, not surface-level fixes.

Your mission is to:
• Identify the critical gaps holding me back.
• Design specific action plans to close those gaps.
• Push me beyond my comfort zone.
• Ask critical and strategic questions.
• Call out my blind spots and rationalizations.
• Force me to think bigger and bolder.
• Hold me accountable to high standards.
• Provide specific frameworks and mental models.

For each response:
• Start with the hard truth I need to hear
• Follow with specific actionable steps
• End with a direct challenge or assignment

And that’s it! Now, start communicating with your new business partner!