Your builder keeps burning credits because every “fix it” message is a fresh guess made with the same missing facts, and you pay for the guess whether or not it lands. The AI did not see what you saw. It read your sentence about it, looked at the code, changed something plausible, and told you it was done. When you write “still broken,” it has nothing new to work with, so it makes another plausible change. Three rounds later the bug is still there and the credits are not.
You did not pick a bad builder, and the app is within your reach. The builder is missing information, and information is the one thing you can supply without reading a line of code.
What one fix attempt actually costs you
It helps to know what the meter is measuring, because it is not measuring “bugs fixed.”
On Lovable, a message in Plan mode costs one credit and changes no code. A message in Build mode costs an amount that depends on how complex the request is and how much work was completed. Lovable’s own docs say small, focused edits usually cost less than multi-step changes or requests that need more exploring, verifying or browser checks, and that a Build request you stop midway is still charged for the work done so far. A vague “fix the login” that sends the AI hunting across your whole project is the expensive kind.
On Base44, message credits are used whenever you ask the AI to add, refine, debug or fix something, and broader prompts that touch several pages cost more than short, focused ones. On the Free plan, the automatic error-fix messages and “Resolve with AI” use message credits too. On paid plans, Base44 says automatic AI fixes are free.
On Bolt, you spend tokens, and Bolt’s docs are blunt about where they go: most of your usage comes from Bolt reading, understanding and syncing your project files, so a larger project costs more per message. A one-line fix in a big app still pays for reading the big app.
Claude Code on a Pro or Max plan works differently. There is no per-message credit. Usage is shared between Claude and Claude Code and counts against limits that reset on a schedule. A fix loop there costs you time and your usage window rather than a balance, but it is the same loop. Codex has usage limits of its own. Numbers change, so check your builder’s pricing page for today’s, but the shape is constant: you pay per attempt, and vagueness makes attempts bigger.
Why the same bug keeps walking back in
There are three reasons, and they stack.
The AI never saw the bug. It saw your description. “The save button doesn’t work” could mean the click does nothing, or the page reloads and the data is gone, or an error flashes for half a second. Each of those has a different cause. Unless the builder ran a check in the browser itself, it worked from your words and the code, picked the most likely reading, and fixed that one.
It fixed a symptom. A blank page, a spinner that never stops, a form that goes quiet: those are what a failure looks like, not what caused it. If your app has no error handling, which is the plain-language name for a safety net that catches a failure and reports it, then when something fails there is no message for anyone to read. The failure is silent. You cannot describe it and the AI cannot find it, so it patches whatever looked wrong nearby. A silent app cannot be debugged by anyone, human or AI.
It does not remember the way you do. Whatever is not in front of it right now, it works without. The decision you made ten messages ago, the version that still worked on Tuesday, the thing you already told it not to touch: if those are not in the message or in a project memory file, they are not in the fix.
When to stop paying and step back
Some loops are telling you something bigger. Watch for three signs. The third attempt on the same bug. A fix that reliably breaks something else. An app that fails without any message at all.
The third sign means the next credit does not belong to the bug. Until the app has a safety net that reports what went wrong, every fix is a guess for you and for the AI alike. The missing piece is the error message.
The first two signs mean the last version that worked is worth more than another attempt. Most builders keep a history of versions, so find yours before you spend again. On your own computer the same thing is called Git, a tool that saves a snapshot of your whole project at every step. Going back costs nothing and turns “everything is broken” back into “one thing is broken.”
And sometimes what looks like a bug is the wall: the app needs something the builder was never meant to do, like a background job, a real database, or a login that actually protects data. If your fix attempts keep circling the same feature, that is worth an honest look.
What ends the loop
The loop ends when the builder gets evidence instead of a verdict, and shows you its reasoning before it spends your credits. Evidence means what you did, what you expected and what actually appeared, written down after you reproduced the bug once yourself, for no credits. Reasoning means a plan in plain words before any code changes. Every builder can give you one if you ask, and on Lovable that is what Plan mode is for. You can judge a plan without reading code, because one that is about to change the wrong thing reads wrong in plain English, and you can say so before you pay.
You can learn more, and get the full prompts and the decision tables, in our course: Lesson 1, How to Direct Your AI Builder. It is the free first lesson, no card.
In the next ten minutes, close the chat where the loop happened. Open your app, reproduce the bug once, and write down exactly what you did and exactly what you saw. Then check whether the failure came with a message. If it did not, the next credit belongs to the message, not the fix. If it did, you now hold the evidence the last three attempts never had.