Estimate tokens
Quickly understand the approximate size of prompts before they reach an AI model.
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%
Calculated locally in your browser. Your prompt is not sent to a PromptMeter backend. Learn how estimates work.
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.
Quick examples
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
Prices are manual for now. Example: if your provider charges $2 input and $10 output per 1M tokens, enter 2 and 10.
Energy usage is a rough estimate. Actual energy depends on model, hardware, provider, datacenter efficiency, workload, and region.
Tools
What PromptMeter will help you do
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.
Learn
Learn how AI costs work
Connect the calculators with practical guides on tokens, prompt costs, API usage, and savings.
Built for
Teams that work with prompts every day
- Developers
- AI builders
- Content teams
- Automation workflows