How I built a website with AI in one evening: a case study with numbers

The website you’re reading this article on didn’t exist yesterday. I built it in one evening together with Claude, the AI assistant from Anthropic. No developer, no website builder with a monthly subscription, and not a single line of code written by hand.

Here’s how it went, how much it cost and where I got stuck, so you can do the same.

Case study numbers: time, costs and result

What I wanted

The task was simple and typical for any expert:

a personal website with my services: mentoring, team training and marketing audits;
light and modern, so it looks good on a phone;
a blog that brings people in from search;
Ukrainian first, with the option to add Russian, English, Polish and Spanish later;
minimal costs and the ability to change everything without a developer.

How the work was split

What I did: signed up for accounts, clicked buttons where it had to be the owner, made decisions (structure, services, style), sent photos and screenshots.

What Claude did: wrote all the code, page copy and articles, generated covers and infographics, checked how the site looked on desktop and mobile, and published the changes itself.

Essentially, I worked as a client with a very fast contractor: I set the task, looked at the result and gave feedback.

Website launch stages

Timeline of the evening

First 45 minutes — the site is online. Accounts on GitHub and Cloudflare, a code repository, connecting GitHub to Claude. Then Claude put together the first version of the site, and after setting up publishing on Cloudflare it went live.

The next hour — a full website. A separate page for each service, a menu with a submenu, a mobile menu, About and Contact pages, a Telegram button, my photos, places for videos.

The last half hour — the blog. Six articles tied to my services, automatic branded covers for every article, infographics, links between articles and service pages, and extended FAQs.

The home page of the finished website

Where I got stuck

Honestly, there were a few moments where I’d have been lost without a hint.

1. Claude couldn’t see my repository. The GitHub connector was connected, but there was no access. The reason: the wrong GitHub account was logged in in the browser, and the app was installed in the wrong place. The fix: check which account you’re logged in as, reconnect and open a new chat.

2. I was installing the wrong thing. Searching for the Claude app on GitHub, I ended up in a marketplace with dozens of third-party tools with “Claude” in their name. I only needed the official app — a direct link solved the problem.

3. Cloudflare suggested a different publishing option. Instead of the expected Pages, the interface offered Workers. I sent a screenshot, and within a minute Claude added the right settings file to the project.

The main lesson: when something goes wrong, you don’t have to figure it out yourself. Take a screenshot and show it to the AI — in most cases the solution comes right away.

How much it cost

Hosting: $0 — Cloudflare and GitHub on free plans.
A .com domain: about $10 a year (for now the site runs on a free technical address).
Claude: my regular subscription.

For comparison: website builders usually charge every month, and having a freelancer or studio build a personal website with a blog costs from several hundred dollars and takes a few weeks.

The blog with automatic covers

What this means for marketers

The most interesting part isn’t even the website. It’s that a marketer who knows how to brief an AI can now do on their own what used to require a developer, a designer and a copywriter. A website, a promo landing page, a blog, infographics, social media content — these are now a matter of hours, not weeks.

But there’s a flip side: AI works fast, not necessarily correctly. Copy written in your name, prices, terms, promises to clients — all of this has to be checked by a person who understands marketing. That’s why the ability to set a task and evaluate the result is becoming a key skill.

Want to do the same? I’ve put the whole path into a free step-by-step guide with ready-made prompts: “A website with AI in one evening” (the PDF is in Ukrainian for now).

If you want to learn to use AI in marketing systematically, come to mentoring. And for teams I run corporate training, where AI tools can be included in the programme.