What is ChatGPT and How Do Businesses Use It?
ChatGPT is OpenAI's general-purpose AI assistant. Businesses use it to draft emails, summarise documents, write content, and answer general questions. It's powerful, widely available, and free to start.
The problem: it doesn't know anything about your business. Ask it your opening hours, your pricing, or whether you offer a specific service — and it will either guess or tell you it doesn't know.
What is a Custom AI Chatbot?
A custom AI chatbot (particularly a RAG chatbot) is trained specifically on your business data — your website, product docs, FAQs, pricing, and policies. It lives on your website or in your tools and answers customer questions as if it were a senior employee who has memorised every document you've ever created.
Side-by-Side Comparison
| Criteria | ChatGPT | Custom AI Chatbot |
|---|---|---|
| Business knowledge | None | Fully trained on your data |
| Accuracy | Can hallucinate | Grounded in your content |
| Live on your website | No (separate tool) | Yes, embedded |
| Lead capture | No | Yes |
| Appointment booking | No | Yes (with integrations) |
| 24/7 availability | Requires user login | Always on, no login |
| Brand tone | Generic | Customised |
| Cost | From $20/month | One-time build + hosting |
Not sure which is right for you? Book a free 30-min call.
Book a Free Call →When ChatGPT is Enough
- You need an internal writing/thinking assistant for your team
- You don't want to invest in a custom build yet
- Your customer inquiries are complex and vary widely
- You're still figuring out your processes
When You Need a Custom AI Chatbot
- You receive repeated questions from customers (pricing, hours, FAQs)
- You want to capture leads 24/7, even outside business hours
- Your website needs to convert visitors, not just inform them
- You serve customers in multiple languages
- You want your chatbot embedded in your site, not a third-party tool
ROI Comparison: Real Numbers
Here's a realistic comparison for a business receiving 500 customer inquiries per month:
| Metric | ChatGPT | Custom AI Chatbot |
|---|---|---|
| Monthly cost | $20 (Plus) | ~$150/month hosting |
| Inquiries automated | 0% (not on website) | 70–85% |
| Support hours saved | 0 | 15–25 hrs/month |
| Lead capture | Manual | Automated |
| ROI breakeven | N/A | ~60–90 days |
Our Recommendation for SMBs
Start with ChatGPT for internal productivity. Once you're ready to automate customer-facing interactions and capture leads around the clock — that's when a custom RAG chatbot pays off.
Most of our clients see full ROI within 90 days. After that, it's pure profit: saved staff hours, captured leads, and happier customers.
Learn more: RAG Chatbot & AI Integration →