The projected future date or financial limit at which a company will completely exhaust its cloud computing budget or venture capital runway based on current AI API usage rates.

Dropped by CFOs to make "we are running out of money" sound like an advanced cosmological event boundary.

• Cosmological Financial Dressing: Using astrophysics vocabulary (like event horizon) to describe an empty bank account.
• Runway Euphemism: Softening the panic of a high cloud-server burn rate.
• House-Cleaning Reality Check: Like looking at an empty wallet three days before payday and declaring you have reached your "expenditure horizon."

Real Housewives of New York (Season 12): Sonja Morgan hits her expenditure horizon while trying to fund a luxury fashion line, desperately hiding her dwindling cash flow and townhome debt behind lavish party optics.

The date a company will run out of money based on its current software spending.

“The spike in token usage drastically accelerated our Q3 expenditure horizon.”

“We had to turn off the auto-translate feature because the API costs were draining our budget too fast.”