Prompt Caching & Batch ROI CalculatorsAnthropic
Anthropic: Claude Sonnet 4.5 Prompt Caching Calculator
Base Input Rate$3/M
Cache Hit Read$0.300/M(-90%)
Cache Write Surcharge$3.75/M (+25%)
Output Rate$15/M
Simulation Parameters
Monthly Requests100,000
Input Tokens / Req8,000
Prompt Cache Hit Rate75%
Output Tokens800
Cache Lifetime Multiplier ($K$ Rounds)Amortizes the +25% cache write surcharge across average user conversation turns
5 turnsGross Uncached Cost$3,600.00
Net Bill$2,100.00
Cache Savings$1,500.00 (-42%)