If you’ve used ChatGPT or Claude, you’ve probably noticed the same thing everyone does: you spend the first few minutes of every chat explaining your business. Who your customers are, how you talk, what you charge, what you never say. Then you start over the next day.
A custom assistant fixes that. It’s the same AI tool, set up once with your information and instructions, so it already knows the basics when you open it.
What it actually is
In ChatGPT it’s called a Custom GPT. In Claude it’s a Project. Different names, same idea: a saved workspace where you store three things.
- Instructions: how it should write, what tone to use, what to avoid, and how to format answers.
- Your background files: a services list, your price sheet, past emails you liked, your policies, a few examples of your best work.
- A few ready-made tasks: the prompts you use again and again, saved so nobody has to retype them.
It isn’t a robot employee and it doesn’t run your business. It’s a well-briefed helper that drafts, sorts and answers questions, while you stay in charge.
What it’s good at
- Drafting replies, quotes and follow-ups in your voice
- Answering the same customer questions the same way every time
- Helping a new team member find the answer without interrupting you
- Turning rough notes into a clean summary or checklist
When it’s worth setting up
A custom assistant pays off when you do the same kinds of writing or answering often and you want it to sound consistent. If you send a dozen similar emails a week, or your team keeps asking you where things are, it’s a good fit.
It’s less useful if you only use AI once in a while, or if your tasks are all different every time. In that case, a plain chat and a good prompt will do.
A simple example
Say you run a cleaning company. Every week you answer the same questions: what’s included, how you price a home, what happens if someone needs to reschedule. Without a custom assistant, you type out a new explanation each time, or hunt down an old email to copy from.
With one, you’ve given it your service list, your pricing rules, your cancellation policy and a few replies you were proud of. Now a customer asks about pricing for a three-bedroom house and you get a draft that uses your wording, your policy and your tone. You read it, adjust one line and send it. The first draft took seconds, and the answer matches what you told the last customer.
The same idea works for a salon, a contractor, an accountant or a shop. The details change, but the pattern is the same: the questions repeat, and the answers should be consistent.
What to put in it first
Start small. These five things cover most of the value:
- A short description of your business and who you serve
- Your services and how you price them
- Your policies, such as scheduling, cancellations and refunds
- Three or four real emails or messages you’re happy with
- A list of phrases to use and phrases to avoid
You can add more later. It’s easier to grow a clean assistant than to untangle a messy one.
How to tell it’s working
Test it before anyone relies on it. Ask it five questions you know the answers to, including a tricky one your customers really ask. If it gets any of them wrong, fix the instructions or the file it pulled from, and test again. Do this again whenever something in your business changes, such as a new price or a new service.
What goes wrong
The most common problem is stuffing it with everything. A pile of old documents makes it slower to follow and easier to confuse. A short, current set of files works better than a big messy one.
The second is forgetting to keep it up to date. If your prices change and the assistant still has the old sheet, it will quote the old price with total confidence. Whoever owns the assistant should own the update, too.
And as with any AI tool, a person reviews anything a customer will read. Our 5 safety rules cover what to keep out of it.
Who should use it
Decide up front who has access. Some owners keep an assistant to themselves. Others share it with the whole team so everyone answers the same way. Either is fine, but make it a choice. If the assistant holds anything private, such as internal pricing or notes about customers, share it only with people who should see that information, and use a business plan if you’re putting real customer details in it.
Keeping it useful over time
A custom assistant isn’t something you set up once and forget. Pick one person to own it, and give them a short routine: update the files when prices or policies change, add a new example when a great reply comes along, and note anything the assistant gets wrong so the instructions can be fixed. A few minutes now and then keeps it accurate, and it’s the difference between an assistant your team trusts and one they quietly stop using.
How I set one up
It’s part of AI Setup + Training. We start with the tasks that eat your week, I write the instructions in plain language, load in your information, test it with real examples from your business, and then train you and your team to use it. The account is in your name, so it’s yours to keep.
If you’re not sure a custom assistant is worth it for you, the AI Check-up answers that first.
Not sure if it fits? Book a free 20-minute call and tell me what you do over and over.
Sources: OpenAI: creating a GPT · Claude: what are Projects. Features and plan limits change, so check each page for what your plan includes.
