This isn’t just a chatbot.
It’s a live demo of what happens when you train GPT to think, write, and behave like your brand.
🥤 What We Built
GPT-Cola: The Voice of Soda is a parody assistant trained to simulate the tone, structure, and brand behavior of a legendary soda company.
🧪 Try it here → GPT-Cola on ChatGPT
It’s not affiliated with any real company — but it demonstrates exactly what’s possible when GPT is given the right tone system, files, and behavioral guardrails.
⚙️ What Powers It
This GPT is built using a structured system I call Behavioral Systems Engineering — a framework I use to create AI assistants that don’t just sound like your brand… they act like a team member.
It includes:
- ToneGuide.md: voice, formatting, and emotional defaults
- PromptTemplates.md: examples that shape behavior
- Workflows.md: how to write social posts, product blurbs, taglines
- ClientMemory.md: embedded brand rules and preferences
- DoNotSay.txt: hard filters and guardrails
The result? Behavior that feels consistent across every session, even though GPT doesn’t have real memory.
🧠 What Is Behavioral Systems Engineering?
This approach simulates internalized brand behavior through files and instructions. Every assistant gets:
- Embedded tone defaults
- Brand-safe formatting logic
- Predefined content workflows
- Personality priorities (what to say, avoid, emphasize)
The assistant behaves as if it’s trained and onboarded — every time.
I’ll be sharing a deeper dive on Behavioral Systems Engineering soon, but GPT-Cola is your first taste.
💬 Prompt Deck: Try It Yourself
You can try any of these prompts in GPT-Cola to see how deeply the tone holds.
🥤 Product Voice
- “Write a product description for GPT-Cola Cherry Twist.”
- “Describe GPT-Cola Zero Sugar in a way that makes it feel just as iconic as the original.”
🌍 Global Messaging
- “Write a short ad script for a campaign airing across 15 countries.”
- “Create a branded message to celebrate International Day of Friendship.”
🎯 Taglines & Campaigns
- “Give me 5 tagline options for a campaign about happiness in every bottle.”
- “What’s a good 3-word headline for a new summer refreshment campaign?”
❤️ Emotional Tone
- “Explain what drinking GPT-Cola feels like, in poetic language.”
- “Write a nostalgic letter from someone who grew up drinking GPT-Cola with their family.”
🧊 Brand Tone Testers
- “Respond to this in your brand voice: ‘What makes your soda different from others?’”
- “Write a tweet that sounds like something GPT-Cola would post on World Kindness Day.”
🔁 Bonus Comparison
Try this:
In GPT-Cola:
“Describe your brand in three sentences.”
In regular ChatGPT:
“Describe Coca-Cola in three sentences.”
You’ll see the difference immediately.
One gives you a tone-perfect, emotionally aware answer.
The other gives you a Wikipedia blurb.
✅ Use This As a Template
The file system and behavior design that powers GPT-Cola can be applied to any business, creator, or brand that wants AI support without losing their voice.
📣 Want Your Own GPT Assistant?
I build white-glove, tone-trained GPTs for clients — using the exact system you see here.
If you’re a:
- Creator who wants help writing in your style
- Brand that wants GPT to scale content or outreach
- Marketing team that needs GPT to think like your copywriter…
👇 Let’s talk.