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How to build a website with AI: ChatGPT, Claude or a developer?
Yes, you can build a website using ChatGPT or Claude. Whether you should depends on what the site has to do. This guide comes from developers who use these tools every working day.
- What ChatGPT, Claude and AI website builders each do well
- Six things AI-built websites usually miss
- When to do it yourself and when to hire a developer
Organisations we have worked with
Can you build a website with AI?
Yes. You can build a website with AI today, and for a simple site the result can be good. Describe your business to ChatGPT or Claude, ask for a five-page website, and within an hour you can have working pages open in a browser. AI website builders go a step further and host the result for you.
The harder question is what happens next. A business website has to be found on Google, load quickly on a phone, capture enquiries reliably, stay secure and still be easy to change in a year. AI will not volunteer most of that unless you know to ask.
Web Mage is a web development agency in Sydney, and AI is part of every project we deliver, so this is not an argument against the tools. It is a guide to using them well and to knowing where their limits are.
What AI-built websites usually miss
Six things a developer checks first on a site that was built with AI.
Search basics
A unique title and description per page, one clear main heading, a sitemap and redirects from your old addresses.
Speed on a phone
Oversized images and unused scripts are common. Test with PageSpeed Insights, not only on your own laptop.
Forms that deliver
A form that looks right but sends nowhere is the most expensive bug a business website can have.
Security
Exposed keys, forms without spam protection and logins without proper checks turn up often in generated code.
Accessibility
Colour contrast, keyboard use and labels for screen readers are basics that generated pages often skip.
Tracking and privacy
Analytics, conversion tracking and a privacy policy that matches what the site really collects.
How to build a website using ChatGPT or Claude, step by step
If you want to try it yourself, this order saves the most rework:
- Write the brief first. Who the site is for, the pages you need, what each page should get a visitor to do, and your real business details.
- Ask for the structure before the design. Have the AI list the pages and their headings. Fix that outline before any code is written.
- Build one page, then reuse it. Get the home page right, then ask for the others in the same style so the site stays consistent.
- Supply your own facts. AI will invent testimonials, statistics and team members if you let it. Give it real content and tell it to add nothing else.
- Ask it to check its own work. Request an accessibility review, a mobile review and a list of anything that is still a placeholder.
- Put it somewhere real. You still need a domain, hosting, a working form and analytics. Ask for step-by-step instructions for the hosting provider you choose.
Then test it on your phone, on someone else's phone, and with a form submission you can watch arrive.
When AI is enough, and when to hire a web developer
AI on its own is usually enough when the site is a few pages, the content is simple, you are comfortable with a little technical setup, and a quiet week for the website would not cost you money.
Bring in a developer when any of these are true:
- The website is a main source of leads or sales.
- It has to take payments, bookings or logins.
- It must connect to a CRM, a stock system or an accounting package.
- You are replacing a site that already ranks on Google.
- More than one person needs to edit it without touching code.
- You have tried, and you are stuck.
There is a middle path, too. You build the first version with AI, then a developer reviews it, fixes what matters and puts it on a solid footing.
Started a website with AI and got stuck? We can finish it
If you have a half-built site and a thought along the lines of "I made this with Claude, can someone make it work properly?", that is a job we take on. A rescue usually covers:
- A code and security review, so you know what you have.
- Fixes for search, speed, forms and accessibility.
- A move onto hosting you control, with backups.
- A content system, if you want to edit pages without writing prompts.
- Maintenance afterwards, if you want it.
Where the generated code is sound, we keep it. Where repair would cost more than a rebuild, you hear that before you spend anything. Our own builds use the same tools, as described on our AI website development page.
ChatGPT, Claude or an AI website builder: which should you use?
All three can produce a website. They differ in how much you control and how much you need to know.
| ChatGPT | Claude | AI website builders | |
|---|---|---|---|
| How it works | You chat; it writes the code and can preview it | You chat; it builds pages with a live preview, and Claude Code can work inside a whole project | You answer a few questions and get a hosted site |
| Suits | Single pages, copy, ideas and fixing snippets | Multi-page sites and longer, structured code | Getting something online the same day |
| You need to know | How to host and connect the files | How to host the files or use a code editor | Very little |
| Who holds the result | You have the code | You have the code | Usually tied to the builder’s platform |
| Main limit | You are the project manager and the tester | You are the project manager and the tester | Harder to customise, and to move later |
How Web Mage builds websites with AI
The same tools you can use, inside a process with a person accountable at every stage.
Plan from evidence
Search data, analytics and your goals decide the pages and structure before any code exists.
Generate, then review
AI drafts components and content structures. A developer reads every change before it is kept.
Test like a sceptic
Automated checks for links, speed, accessibility and SEO, then manual testing on real devices.
Launch and own it
Deployed to hosting you control, with redirects, tracking and a named person responsible.
What clients say about our developers
Words from people we have built and looked after websites for.
Our project involved building a world-first technology platform, it was not an easy brief, but his results were outstanding.
Costa KoulisCo-Founder, designerex Hey! Webmage and the team, Thank you. You have all been amazing over these last few months and delivered above and beyond for all of our clients. You have made our clients happy and made our job easier. It's a pleasure working with every one of you. We look forward to many more projects with you in the future. Wishing you all the best.
Clare RainbowHead of Change, Step Change They were really amazing and delivery quality work. Quick to respond and did everything I asked for. If you are looking for someone reliable give them a buzz.
Scott LeeAccount Director, The Unspoken Pitch Building a website with AI: frequently asked questions
Can I build a website using ChatGPT?
Yes. ChatGPT can write the HTML, CSS and JavaScript for a website and preview it as you go. It works best for simple sites and single pages. You still have to arrange a domain, hosting, a working contact form and tracking, and check the result on a phone.
Can I build a website using Claude?
Yes. Claude can build complete pages and show them as a live preview, and Claude Code can create and edit a whole website project on your computer. It copes well with longer, multi-page builds. As with any AI tool, testing, hosting and security remain your responsibility.
Is ChatGPT or Claude better for building a website?
Both can do it, and the gap shifts with each release. The bigger difference is the brief: a clear outline, real content and step-by-step requests matter more than the choice of model. Try the same first page in each and keep the one whose output you find easier to direct.
Do I still need a web developer if I use AI?
Not always. For a simple brochure site, AI and some patience can be enough. You need a developer when the site must take payments, connect to other systems, protect customer data or bring in leads you depend on. A developer can also review an AI-built site instead of rebuilding it.
Will a website built with AI rank on Google?
It can. Google has said it rewards helpful content however it is produced. What holds AI-built sites back is usually the basics: thin or generic copy, missing titles, slow pages and no redirects from the old site. Fix those and an AI-built site competes like any other.
How much does it cost to build a website with AI?
The tools cost little: a subscription to an AI assistant or builder, a domain and hosting. The real cost is your time, plus the business you lose if the site is slow, hard to find or drops enquiries. A developer-led build costs more at the start and is quoted on scope.
Can you fix or finish a website I built with AI?
Yes. Send us the link or the files. We review the code, tell you what is solid and what is risky, and quote for the fixes. Often most of what you built stays, and we add what is missing: SEO, speed, security, a working form and proper hosting.
What is vibe coding, and is it safe for a business website?
Vibe coding means describing what you want to an AI and accepting the code it writes without reading it closely. It is a quick way to make a prototype. For a business website it is risky on its own, because nobody has checked security, accessibility or what happens when something fails.
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Built it with AI and want a second opinion?
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