Why does AI coding have to start with a subscription?

I've noticed that a lot of people interested in AI coding hit the same wall:

They want to try an AI coding agent, but before they can even start, there's usually a subscription, an API key, or some usage-based billing involved.

That can be fine if you're using it every day. But for students, beginners, hobby developers, or people just experimenting with vibe coding, it's a pretty high barrier.

That's why I started building Clixad.

Clixad is a cloud-based AI coding agent for the terminal, similar to the workflow of Claude Code or Codex. It can inspect a project, edit files, run commands, test changes and fix errors.

The important part isn't that the AI itself is free. The inference still costs money.

The difference is how those costs are covered.

Users get free coding credits, and can earn additional credits through advertiser-funded offers, forms and surveys. So instead of requiring users to pull out a credit card or add an API key, they can spend some time earning credits and then use those credits for AI coding.

It's probably not the right model for someone running an agent all day. But for someone who wants to build a side project, learn AI coding, or occasionally vibe code, I think it's an interesting alternative to another monthly subscription.

I'm curious whether people would actually prefer this model over paying $20+ per month for an AI coding tool they only use occasionally.