Scene Hook

Last Friday night, I was about to shut down my computer and casually clicked open my credit card bill—AI subscriptions added up to almost $500. ChatGPT Plus, Claude Pro, Midjourney, plus a few trials I forgot to cancel. I've made this mistake before: starting a subscription and forgetting it until the charge hits. For those of us running solo businesses, every cent needs to be spent wisely, but AI tool bills really do creep up on you.

What It Is + Who Is Using It

Uber's engineering team recently did something that made the industry gasp: they used Claude Code (an AI coding assistant that helps write code and fix bugs automatically, billing based on code generation volume) and burned through their entire 2026 annual AI budget in just four months. My friend Zhang Lei, who runs a SaaS in Hangzhou, was venting to me at Starbucks last month: their three-person team spent over $2,000 on Claude Code alone in one month—he had set it to "unlimited" mode, throwing tasks in one after another without monitoring usage at all. We can understand big companies burning cash, but for a small team, this kind of spiral directly eats up all your profit.

Replicate Cost Today

To avoid the same trap, the cost is:

  • Money: $0 (setting budget alerts costs nothing itself)
  • Time: 15 minutes
  • Technical barrier: Just need to know how to set a reminder on your phone
  • First step: Open the dashboard of the AI tool you're currently using, find the "Usage" or "Billing" page, and see how much you've spent this month

I also got stuck here: I had no idea you could set a spend limit on Claude Code, always assuming it was a fixed monthly fee like the Pro subscription. In reality, with pay-per-use tools, costs skyrocket if you use them a lot.

Advice By Stage

Just starting out: If you're only using one or two AI tools right now, first figure out the billing method for each—whether it's a fixed monthly fee or pay-per-use. This isn't something everyone has to do immediately; if your usage is low right now, it's fine not to set limits.

With 1-2 clients: I set a monthly spend limit in every AI tool. Most platforms have this option under "Settings > Billing". If you can't find it, just ask customer support how to set it up.

Scaling a team: If you have a team using AI tools, I suggest assigning one person to watch the total bill and check it once a week. Uber's lesson was that no one was watching, and they only found out after blowing the budget. If you're just starting with pay-per-use tools, I'd run it with the minimum limit for a week, check the actual spend, and then decide whether to increase it.