Prompt savings calculator

Prompt Savings Calculator

Paste your prompt to estimate how much you could save by making it shorter. PromptMeter calculates potential savings per prompt run, per 1,000 runs, and per month.

Reducing input tokens

Shorter prompts send fewer input tokens to the model. PromptMeter estimates savings from reducing that input by 10%, 25%, or 50%.

Why shorter prompts can cost less

Many AI providers bill input tokens separately, so reducing prompt size can lower the cost of each prompt run.

Output tokens are unchanged

Savings are calculated only on input tokens. Expected answer tokens stay the same in this version.

No rewriting yet

The scenarios are mathematical estimates. PromptMeter does not rewrite your prompt yet, though future versions may help make prompts more efficient.

Calculator

Estimate your AI prompt cost

Paste a prompt, choose an example pricing profile, and estimate cost per prompt run, per day, and per month.

Prompt

Pricing profile These are example pricing profiles, not official provider prices. Always verify real prices with your AI provider. Expected answer length Choose how long you expect the model's answer to be. Prompt runs per day How many times this prompt runs each day. Days to estimate How many days to include in the monthly estimate.

Input tokens are what you send to the AI model. Output tokens are what the model returns. API providers often price them separately.

Advanced settings

Model label Model labels are for organization only. Pricing and token estimates are still manual approximations.

Input cost per 1M tokens Enter your provider's price per 1M tokens. Prices are not preloaded yet. Output cost per 1M tokens Enter your provider's price per 1M tokens. Prices are not preloaded yet.

Prices are manual for now. Example: if your provider charges $2 input and $10 output per 1M tokens, enter 2 and 10.

Expected output tokens Prompts per workflow / agent steps Use this for agents or workflows where one user request triggers multiple AI calls. Energy per 1M tokens (kWh) Optional. Enter an estimated kWh per 1M tokens if you have your own benchmark.

Energy usage is a rough estimate. Actual energy depends on model, hardware, provider, datacenter efficiency, workload, and region.

Token estimate

Characters 0

Words 0

Tokenizer profile General

Chars per token estimate 4

Low input token estimate 0

Estimated prompt tokens 0

Conservative input token estimate 0

Estimated answer tokens 750

Token estimates are approximate. The real count may vary depending on language, model, provider, tokenizer, formatting, and message structure.

The selected model label changes the approximate tokenizer profile used for estimates. This is still not an official tokenizer.

Cost per prompt run

Estimated input cost $0.000000

Estimated output cost $0.000000

Cost per prompt run $0.000000

Cost per 1,000 prompt runs $0.000000

Monthly usage estimate

Estimated daily AI cost $0.000000

Estimated monthly AI cost $0.000000

Monthly input tokens 0

Monthly output tokens 0

Monthly total tokens 0

Based on Budget example · Medium answer · 100 runs/day · 30 days · General tokenizer

Optimization potential

Reduce prompt by 10%

Prompt tokens saved per run 0

New prompt tokens estimate 0

Cost saved per 1,000 prompt runs $0.000000

Estimated monthly savings $0.000000

New estimated monthly AI cost $0.000000

Reduce prompt by 25%

Prompt tokens saved per run 0

New prompt tokens estimate 0

Cost saved per 1,000 prompt runs $0.000000

Estimated monthly savings $0.000000

New estimated monthly AI cost $0.000000

Reduce prompt by 50%

Prompt tokens saved per run 0

New prompt tokens estimate 0

Cost saved per 1,000 prompt runs $0.000000

Estimated monthly savings $0.000000

New estimated monthly AI cost $0.000000

These savings are estimates based only on reducing prompt input tokens. They do not rewrite your prompt or guarantee the same output quality.

Future versions may help rewrite prompts more efficiently.

Energy estimate

Estimated energy usage per request 0.000000 kWh

Estimated energy per 1,000 requests 0.000000 kWh

Estimated monthly energy usage 0.000000 kWh

Token counts and prices are estimates. Actual usage may vary depending on the provider, model, language, and tokenizer.

FAQ

Prompt savings calculator FAQ

How does the prompt savings calculator work?

It estimates standard input tokens, applies 10%, 25%, and 50% reductions, then calculates potential savings using your input-token price and usage volume.

Does PromptMeter rewrite my prompt?

No. It shows mathematical savings estimates only. You still decide how to shorten or improve the prompt.

Why does reducing input tokens save money?

AI providers often charge for text sent to the model. Sending fewer input tokens can reduce cost while output assumptions remain unchanged.