Introduction
For a while, Custom GPTs gave marketers a wonderfully simple little formula.
You had an idea. You built a GPT around it. You added instructions, maybe uploaded useful files, gave it a name, and shared the link with buyers, students, members, or leads.
Nice and tidy, right?
Then OpenAI changed the rules for creating new Custom GPTs on personal ChatGPT accounts. At almost the same time, ChatGPT Sites began rolling out as a way to build interactive websites and lightweight apps.
So now you may be looking at both tools and wondering, “Wait. Is Sites the new GPT builder? Am I supposed to turn everything into an app now? And what happens to all the GPT ideas I was planning to create?”
Good questions.
The short answer is that ChatGPT Sites do not replace Custom GPTs one-for-one. They solve a different problem. But for marketers who like building small, useful digital products, Sites may open a door that’s even more interesting than the old GPT-only approach.
Let’s look at what each tool does, where they overlap, and how you can decide what to build next.
What Are ChatGPT Sites?
Start with the new kid carrying the toolbox.
How Do ChatGPT Sites Work?
ChatGPT Sites lets eligible users create, preview, publish, and share interactive websites and lightweight apps. You describe what you want the Site to do, add any useful files, data, links, or limits, and ChatGPT helps build it.
You don’t have to begin with a blank coding window wondering which curly bracket just ruined your afternoon (which is a lovely way to keep your coffee hot).
For example, you could ask for an Etsy profit calculator. You could describe the fields you want, the math it should perform, the results it should show, and the warnings it should give when profit gets too thin.
Then you preview it, make changes, and publish when you’re happy.
What Can You Build With Them?
OpenAI gives examples such as dashboards, project trackers, launch calendars, prototypes, internal portals, and reports. That’s already useful (and that’s before a marketer gets hold of it), but you can take the idea much further.
Think calculators. Generators. Assessments. Planners. Interactive checklists. Niche scorers. Pricing helpers. Product selectors. Little tools that take something your buyer used to do by hand and make it faster.
That’s the exciting bit!
Who Has Access?
As of August 16, 2026, OpenAI says Sites is in public beta for ChatGPT workspaces, Plus, and Pro accounts. The rollout may not have reached every eligible account yet, and workspace admins can control access. Sites is not available on Free or Go plans at launch.
So if you don’t see Sites yet, don’t assume you’ve somehow offended the software gods. Your account may simply still be waiting for the rollout (annoying, but temporary for many eligible users).
What Are Custom GPTs?
Now let’s put the familiar tool beside it.
How Does a Custom GPT Work?
A Custom GPT is a specialized version of ChatGPT. You give it instructions, goals, boundaries, conversation starters, and sometimes knowledge files or extra capabilities.
The main experience is conversation (the useful kind, where the next answer depends on what you just said).
Your user asks something. The GPT answers. The user adds more information. The GPT adjusts. That back-and-forth can continue for as long as the task needs it.
What Makes a GPT Different?
A GPT can carry a large set of instructions about how it should think through a task. It can also use uploaded knowledge, selected ChatGPT capabilities, Apps, or Actions when those features are supported.
That makes GPTs especially useful when your value lives in the conversation itself.
An Etsy coach doesn’t just need four numbers. It may need to ask what you’re selling, how experienced you are, what went wrong last month, and what you can realistically do this week. That’s a conversation – and a GPT fits it nicely.
Who Can Create New GPTs Now?
This is the part that changed (and it matters if you sell GPT-based products).
OpenAI’s current GPT creation documentation says new GPT creation is not available on personal Free, Go, Plus, or Pro accounts. Existing GPTs remain usable and may still be editable when plan and permission rules allow it.
Business, Enterprise, and Edu workspaces can still create GPTs when their workspace settings allow it.
If your old plan was “I’ll keep Plus and make a fresh GPT bonus whenever I need one,” this change matters. That road now has a bright orange cone planted in the middle of it.
Do ChatGPT Sites Replace Custom GPTs?
No.
That’s the answer I want you to remember before we make this more complicated than a printer setup screen.
Where They Overlap
Both tools can turn your knowledge into something another person can use. Both can help you package a process. Both can support products, bonuses, training, internal business tools, or buyer resources (which is exactly where the confusion starts).
But the user experience is different.
Where They’re Different
A GPT is mainly built around conversation.
A Site is mainly built around an interactive web experience.
That’s not a small difference. It’s the difference between talking with a pricing coach and using a pricing calculator. Both may help you set a price, but they get you there in very different ways.
Why You May Still Want Both
You don’t need to join Team GPT or Team Site and order matching jackets (please don’t).
Use the tool that makes the job easiest for your buyer.
If she needs to explain a messy situation, ask questions, revise ideas, and think something through, conversation may be perfect. If she needs to enter six pieces of information and get a clean answer in 12 seconds, a small app may be far better.
When a Custom GPT Still Makes More Sense
Custom GPTs haven’t suddenly become useless. Far from it.
When Your Buyer Needs an AI Coach
Coaching, brainstorming, reviewing, critiquing, planning, and troubleshooting often need conversation. A fixed form can’t always predict what the person needs to say next (especially when answer number one changes question number two).
If the tool’s value comes from “talk this through with me,” a GPT-style experience is a natural fit.
When Long Conversations Matter
Writing a sales page can take several rounds. So can planning a product, fixing an offer, choosing a niche, or reviewing a marketing campaign. In those cases, chat isn’t getting in the way.
Chat is the workbench.
When Your Instructions Are the Secret Sauce
You may have a detailed method for asking questions, judging answers, spotting problems, and recommending next steps. A conversational assistant can carry those instructions through a long session.
That’s much harder to replace with a single form and a shiny button.
When a ChatGPT Site Makes More Sense
Now we get to the part that may have your product-idea brain reaching for coffee.
When Your Buyer Needs a Simple Tool
Calculators are obvious examples, but don’t stop there. Think scorecards, generators, planners, estimators, comparisons, assessments, trackers, and small decision tools (tiny tools can do very useful work).
One clear job can be enough.
When Buttons and Forms Beat Chat
Suppose someone wants to find out whether a $37 digital product can still be profitable after affiliate commission and processing fees. She already knows what numbers she has. Give her the boxes. Let her enter the numbers. Show the answer.
Making her hold a ten-message conversation first would be like asking her to take a taxi from the couch to the refrigerator.
When You Want the Value To Be Obvious
“Use this calculator to see your estimated Etsy profit” is instantly clear.
So is “Answer these eight questions to score your niche.”
That’s useful when you’re selling because the buyer can picture herself using the product before she’s even clicked the link.
Why ChatGPT Sites Could Be Especially Interesting for Quick Apps
This is where I think marketers should pay close attention.
You Can Build Around One Small Problem
You don’t need to create a giant software platform with 73 menus and a help desk staffed by three exhausted penguins (good news for your budget).
Start smaller.
“What should I charge?” “Which product should I work on first?” “How much profit is left?” “Which lead magnet idea scores highest?” Each question could become a focused tool.
Your User Doesn’t Need To Be Good at Prompting
This is a big business advantage!
Your buyer shouldn’t have to paste a 900-word prompt, edit five placeholders, remember four commands, and offer a small gift to the keyboard.
A good little app can hide much of that work. Your buyer focuses on what she knows and what she wants back.
The Result Can Feel More Like Software
A PDF can teach. A GPT can converse. A Site can feel like a tool someone returns to whenever she needs the job done.
That repeat-use feeling can increase the practical value of a bonus, membership resource, or paid product.
Can You Share a ChatGPT Site With Other People?
Yes – and this is one of the reasons Sites matters to marketers.
Public Sharing Is Built In
OpenAI says an eligible Site can be published so that “Anyone on the internet” can access it when public publishing is enabled for the account or workspace. After publishing, you can copy the Site URL and share it.
A public Site can be available without ChatGPT workspace access, although your Site can also include its own supported sign-in feature if you intentionally add one.
You May Be Able To Use Your Own Domain
Where custom domains are available, OpenAI says you can connect a domain or subdomain you already own by changing its DNS records. That is a very interesting difference for product sellers (and for anyone who cares what the front door looks like).
Instead of sending someone to a random-looking tool URL forever, you may be able to send her somewhere like calculator.yourdomain.com. That’s a much nicer front door.
Test the Visitor Experience
Don’t test only while you’re logged in as the creator.
Open the published link the way a visitor would. Check access, forms, links, results, sign-in behavior, and anything that accepts information from the user.
Your tool isn’t finished when it works for you. It’s finished when it works for the person you built it for.
Can You Use ChatGPT Sites for Paid Products?
Here’s another important development.
OpenAI Allows Selling Through a Site
OpenAI’s current Sites documentation says you can sell goods or services or collect payments through a ChatGPT Site using a third-party payment processor. You remain responsible for the payment setup, customer service, refunds, taxes, delivery, and the rest of the business side.
So yes, Sites can move beyond “cute demo I showed my friend.” That matters!
A Site Can Also Be Part of a Bigger Product
This may be an even easier place to start (and a safer way to test whether buyers actually use the tool).
You could sell a course and include a calculator. Sell a report and include an interactive planner. Sell PLR training and include a small tool that helps the buyer put the training to work.
The Site doesn’t have to carry the whole product on its back like a tiny digital pack mule.
Don’t Forget That Sites Is Still a Beta
OpenAI describes Sites as a public beta and says plan limits may change. Some capabilities, frameworks, hosting patterns, databases, or background services may not be supported.
That’s not a reason to avoid it.
It’s a reason to avoid promising your customers that one beta feature will behave exactly the same until the sun burns out.
What Happens to Your Existing Custom GPTs?
If you’ve already built GPTs, don’t start digging little graves for them (they’re not tiny digital houseplants).
Existing GPTs Remain Available
OpenAI says existing GPTs remain available to use. Existing GPTs may also still be edited when the relevant plan and permission requirements are met.
That’s very different from “all Custom GPTs are gone.”
Existing GPT Links May Still Matter
OpenAI still documents direct GPT links and “Anyone with the link” sharing when that sharing option is available. The choices shown can depend on the GPT, account, workspace, and permissions.
If you’ve put an important GPT inside a paid product, bonus, course, or membership, test the link from another account.
Five minutes now beats a buyer discovering the problem at 11:47 PM while you’re wearing slippers and trying to remember where you saved the original instructions.
How Should You Decide Between a GPT, a Site, and a Standalone App?
Use this little test before you build anything (before the shiny new button makes the choice for you).
Choose a GPT When Conversation Is the Product
If the user needs coaching, brainstorming, feedback, exploration, or several rounds of back-and-forth help, a GPT can make sense when you have an eligible creation path.
Choose a Site When Interaction Is the Product
If the user needs fields, choices, buttons, calculations, scores, structured inputs, or one focused result, a Site may be the cleaner choice.
Choose a Standalone App When Control Is the Priority
If you’re building something you expect to sell for years, your own web app deserves serious thought.
You can control the domain, hosting, customer experience, login system, payment flow, and more. You can still use OpenAI through the API when AI belongs inside the product.
The AI can power the engine without owning the whole car.
What ChatGPT Sites Could Mean for Digital Product Sellers
This is why I’m much more interested than worried (and why I’d keep a notebook handy for product ideas).
Small Software Products Become Easier To Imagine
For years, the phrase “software product” made many marketers picture a developer team, a giant budget, seven databases, and one person saying “deployment pipeline” before breakfast.
AI-assisted building keeps shrinking that gap.
You can start thinking about tiny utilities that solve one problem well.
Bonuses Can Become Interactive
Your next bonus doesn’t have to be another 42-page PDF sitting quietly beside 11 other PDFs.
It could be a calculator someone uses every month. A planner she returns to each launch. A scorecard she uses every time she considers a new niche.
Useful beats heavy.
Training Can Move From Knowing To Doing
A report can teach your buyer how pricing works.
A Site can help her calculate the price.
A course can explain how to choose a niche. A Site can help her compare three ideas while the lesson is still fresh.
That’s a lovely combination – training plus action!
Are ChatGPT Sites the Future of Quick AI Apps?
Maybe. But I wouldn’t tattoo that prediction on anything expensive (at least not yet).
Sites Won’t Replace Every GPT
If conversation is the value, a conversational tool still makes sense.
You don’t need a seven-field form when what your buyer really needs is someone to ask, “Okay, what happened next?”
GPTs Won’t Be the Best Choice for Every Product
Some things are simply better as tools.
Give the user a few choices. Let her enter useful information. Give her the result. Save her time.
Simple can be wonderful!
The Opportunity Is Bigger Than Either Tool
Don’t begin your next product by asking, “How can I make this a GPT?”
And don’t automatically ask, “How can I make this a Site?”
Ask something better:
“What does my buyer need to accomplish, and what is the easiest way I can help her do it?”
Sometimes the answer will be conversation. Sometimes it’ll be a calculator, planner, generator, or assessment. Sometimes you’ll want your own independent app.
The technology will keep moving. That’s not the bad news – that’s the fun part!
You don’t need to predict every platform change. You need to keep your knowledge safe, understand what your buyer needs, and choose the best delivery tool available today.
GPT, Site, standalone app… those are containers.
Your useful idea is still the valuable part.
Official OpenAI Resources To Bookmark
These features are changing quickly, so don’t rely on a six-month-old tutorial when money or customer delivery is involved. Check the current official pages before you build around a specific feature.
- Creating and Managing ChatGPT Sites: Current information about Sites creation, availability, publishing, public URLs, custom domains, access, and payments.
- Creating and Editing GPTs: Current rules for creating, configuring, editing, and managing Custom GPTs.
- GPTs in ChatGPT: A useful overview of GPT features, access, direct links, and account differences.
- Sharing and Publishing GPTs: Current details about GPT links, workspace sharing, public sharing, and GPT Store publishing.
Keep those nearby. Today’s perfect product plan can need a small rewrite tomorrow, and that’s okay.
Keep building useful things, keep testing the buyer experience, and keep control of the valuable knowledge underneath the tool.
That’s how you stay ready for whatever OpenAI changes next.
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