AI prompt cost estimator

Measure, estimate and optimize your AI prompt costs.

Estimate tokens, compare AI model costs, and understand how your prompts affect your budget.

Start calculating

Prompt tokens 1,248

Estimated cost $0.018

Optimization room 22%

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

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.

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

Usage volume

Estimated daily AI cost $0.000000

Estimated monthly AI cost $0.000000

Based on 100 prompt runs/day for 30 days.

Monthly estimate

Monthly input tokens 0

Monthly output tokens 0

Monthly total tokens 0

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.

Tools

What PromptMeter will help you do

Estimate tokens

Quickly understand the approximate size of prompts before they reach an AI model.

Calculate prompt costs

Compare model pricing and estimate how prompt length affects your spend.

Optimize AI usage

Spot costly prompt patterns and prepare cleaner workflows for repeated use.

Built for

Teams that work with prompts every day

Developers
AI builders
Content teams
Automation workflows