Related question which might fit here so I'm going to try:

What is the absolute cheapest way to get started on AI coding a simple website? I have a couple ideas I want to test out and get out of my head and onto the web but have resisted for years because my webdev knowledge is stuck in 2004 and I've had no desire to change that. These are not complicated things (all static, I think) but... I hate webdev.

I am not really willing to pay to do any initial explorations, but if I like where things are going then, sure, I'll pay up. I have a decently powerful machine that can run things locally, but it is Windows (because I'm an EE, sadly), which does matter.

Google Gemini has a generous free tier.

You could start by experimenting in AI Studio - https://aistudio.google.com/ - then have a go at coding agents using their Gemini CLI or Antigravity tools.

For what you're describing the free tiers of the Claude and ChatGPT web apps would probably work fine too.

Cloudflare has a ~zero cost hosting service if all you need is static web page.