Prompt Caching Savings Calculator
See how much prompt caching cuts your input cost.
Results update automatically as you type.
Result
72.0% cheaper input
Save ~$1,620.00/month on input tokens
- Input cost without cache
- $0.0150
- Input cost with cache
- $0.00420
- Savings per request
- $0.0108
- Savings per month
- $1,620.00
Prompt caching bills repeated input tokens at a fraction of the normal rate. Set how much of your input is cacheable and your volume to see the monthly savings.
How this is calculated
This calculator uses the api cost formulas described in our methodology. All figures are estimates for planning; verify current pricing with each provider before relying on them.
Worked example (defaults)
With the default inputs above, here is the result:
Result
72.0% cheaper input
Save ~$1,620.00/month on input tokens
- Input cost without cache
- $0.0150
- Input cost with cache
- $0.00420
- Savings per request
- $0.0108
- Savings per month
- $1,620.00
Frequently asked questions
What can be cached?+
Stable prefixes like system prompts, tool definitions and retrieved context. Cache hits are billed at roughly 10% of the normal input rate on most providers.