Why do I have to confirm a checkbox to raise my overflow cap past 2× my included AI?

The one-time checkbox is a guardrail so a cap far above your allowance is a deliberate choice, not a silent overage.

It’s a guardrail against a surprise bill. Setting a cap far above your included allowance is a deliberate choice, so we ask you to acknowledge it once rather than let a large overage happen silently.

It only ever applies to pay-as-you-go overflow — the default cap-and-hold pauses instead of spending, so it never asks. Caps top out at $100,000 a month either way.