How to Build Software With AI for Free

AI has made it possible to build a website, SaaS product, or small application without being an experienced developer.

You can describe what you want, let an AI coding agent write the code, test it, find errors, and keep iterating.

This is basically what people mean when they talk about vibe coding.

The problem is that AI coding can become expensive surprisingly quickly.

Why free vibe coding is difficult

The coding agent itself isn't necessarily expensive.

The expensive part is the AI inference behind it.

A typical setup looks like this:

Coding agent → API → AI model → tokens

Every request consumes tokens, and those tokens eventually cost money.

That's why many “free” AI coding tools either have limited usage or require you to bring your own API key.

What if you don't have an API key?

There are a few alternatives.

You can use a free tier, run a local model, or use an advertiser-funded AI coding agent.

I've been building Clixad around the last option.

Clixad is a free AI coding agent for the terminal.

Users receive free credits when they start. When they need more, they can earn credits by completing available advertiser offers or surveys.

The advertiser pays for the completed action, and that revenue helps fund the AI usage.

So instead of paying for every token yourself, you're essentially exchanging a small amount of time for more coding credits.

What can you build?

The idea is to make the agent useful for normal vibe-coding workflows.

You can use it to work on things like:

websites
SaaS applications
scripts
APIs
automation
prototypes
existing codebases

The agent can inspect the project, modify files, run commands, and test changes.

Is this actually free?

There's an important distinction.

It doesn't mean AI inference suddenly costs nothing.

It means the user doesn't have to pay directly for that inference.

There are different ways to pay for AI:

money
your own hardware
limited free tiers
or, in this case, your time

I'm interested in whether the last option makes sense for people who want to build with AI but don't want another monthly subscription.

That's the experiment behind Clixad.