Where should I set my AI spend alert?
Teams guarding against overruns use this to decide where to set an AI spend alert threshold. Because AI cost scales with usage, doubling users roughly doubles spend unless you change the model or the token budget — this page shows the curve so you can plan the levers.
Start here: AI Budget Planner
Results update automatically as you type.
- Chat / assistants(50%)
- $500.00
- RAG / search(30%)
- $300.00
- Other (agents, media)(20%)
- $200.00
Then: Monthly AI Bill Forecaster
Results update automatically as you type.
- Starting monthly spend
- $1,000.00
- Monthly growth
- 15.0%
- Spend in month 12
- $4,652.39
- Cumulative spend
- $29,001.67
| Month 1 | $1,000.00 | $1,000.00 |
| Month 3 | $1,322.50 | $3,472.50 |
| Month 6 | $2,011.36 | $8,753.74 |
| Month 12 | $4,652.39 | $29,001.67 |
Why this isn't trivial
The part people underestimate: spend can accelerate mid-month, so an alert set at the budget line leaves no time to react. In practice the biggest savings come from alerting well before the cap, based on run-rate, so it is worth modelling before you commit.
How it's calculated
We estimate this by projecting month-end spend from run-rate and alerting at a fraction of the budget. Every figure uses the current provider prices baked into the site (reviewed daily), and you can override any input to match your own assumptions.
Frequently asked questions
Where should the alert fire?+
Before the cap — at a run-rate that would blow the budget by month end.
Alert or auto-throttle?+
Both — alert humans and auto-degrade to a cheaper model as a safety net.
Are these prices up to date?+
Yes. The model prices behind this calculator are refreshed and reviewed daily, so your estimate reflects current provider rates rather than a stale snapshot.
Related
Estimates for planning. Pricing data last reviewed 28 July 2026.