How Pay-As-You-Go AI Pricing Works: Credits in Plain Dollars
By Biilda Team · · 4 min read
Pricing for AI tools can be confusing. Some charge a monthly subscription whether you use them or not. Others bill in units that mean nothing to a normal person. Pay-as-you-go with credits in plain dollars is a simpler model, and it is worth understanding how it works before you try one.
What is pay-as-you-go AI pricing?
You put money into a balance, and the tool spends from that balance as it does work. If you do a lot, you spend more. If you do little, you spend little. There is no monthly fee for sitting idle.
The main alternative is a subscription, where you pay a fixed amount each month for a bundle of access. Subscriptions are predictable, but you pay the same whether you used the tool heavily or barely at all. Pay-as-you-go ties the cost to the work.
What is a credit?
A credit is a unit of balance. In Biilda, 1 credit equals $0.01, so there is no conversion puzzle. When you see a balance of 2,000 credits, that is $20.
The point of the plain-dollar design is that you never have to learn the technical units AI services use internally. You see what you have, and you see what a task used.
How much do credit packs cost?
Biilda is free to download, and you buy credits in packs:
| Pack | Price | Credits |
|---|---|---|
| Starter | $20 | 2,000 |
| Popular | $50 | 5,000 |
| Pro | $100 | 10,000 |
| Team | $250 | 25,000 |
The minimum top-up is $20, and auto-recharge is optional. There are no subscriptions.
What makes one task cost more than another?
Bigger jobs use more. The pricing page gives a rough feel rather than exact numbers, and is clear that costs are illustrative.
- Drafting and sending a batch of personalized emails: a few credits.
- Researching a topic and summarizing it into a report: a handful of credits.
- Building a new custom tab or workflow: more while it builds, then cheap to run.
- Installing a ready-made department: more up front, then cheap to run day to day.
- Having an employee read through a folder of documents: a few credits per document.
Two things drive the difference: how much work the task involves, and the quality level you choose. That leads to the next question.
What are quality levels?
You pick a level for the AI's work: Economy, Balanced or Best. You do not choose models or providers, and there are no API keys to manage. Biilda picks the right one behind the scenes.
A sensible approach is to match the level to the job. Routine, well-defined tasks are good candidates for Economy. Work where nuance matters, like a careful draft or a tricky analysis, may be worth a higher level. In Biilda you can set the level per task, so each job gets what it needs.
How do you avoid surprise bills?
This is the part people worry about most, and it is where a good pricing model earns trust. Look for three things:
- A hard spend cap. You should never be able to spend more than you have added. Biilda stops before exceeding your balance, and a monthly spend cap (Settings, under Spending) can hold it lower. It starts at $100 a month and you can change it.
- Live cost visibility. You should see cost as work happens, not only on a statement. In Biilda you can watch the cost add up turn by turn in chat, plus your running balance at all times.
- Safe pausing. If you run low mid-task, the task should pause rather than fail or lose work. In Biilda it resumes the moment you top up.
For a deeper look at that last point, see how to keep AI costs under control.
What about refunds?
Unused credits from any purchase are refundable within 60 days of that purchase, and purchased credits never expire. The pricing page links to the full refund policy. That combination removes most of the risk of trying a pack.
Is pay-as-you-go cheaper than a subscription?
It depends on how you use the tool, and nobody can honestly promise a number without knowing your work. A few rules of thumb:
- If your usage is light or uneven, paying for work done usually fits better than a flat fee.
- If your usage is heavy and steady, a flat fee could be more predictable. Compare against what you would actually spend.
- If you want a hard ceiling, look for a real spend cap rather than a soft warning.
The best test is to run your real tasks for a couple of weeks and watch what they cost.
How do you start without overspending?
A cautious way to begin:
- Buy the smallest pack.
- Check your monthly spend cap, $100 by default, and change it if you want (Settings, then Spending).
- Run two or three real tasks and watch the live cost.
- Adjust the quality level per task based on results.
- Top up only when you know your usage pattern.
A good first session is mapped out in getting started with Biilda: your first 30 minutes.
Where can you see the full details?
The pricing page lists the packs, examples and FAQ. It is the source of truth for how billing works.
The short version
Pay-as-you-go means you fund a balance and spend it only when the AI does work. Credits are plain dollars, a hard cap keeps you from spending more than you added, and you can watch costs live. If that model appeals to you, you can download Biilda for free and start with the smallest pack.