—
saved / month—saved / year
—prompt reduction
—new input cost/mo
The recurring line item nobody audits
A bloated system prompt or a stack of verbose few-shot examples is charged again on every single request — so a one-time edit compounds into real money at scale. Trim the fixed prefix, then cache what's left so it bills at the discounted read rate. Check that with the prompt caching savings calculator, size the whole call on the LLM token cost calculator, and compare models on the cheapest LLM API tool.