Start by measuring a prompt, estimating its cost, and then learning how to reduce unnecessary tokens before usage grows.
PromptMeter Learn
Learn AI prompt costs
PromptMeter Learn collects practical guides and calculators to help you understand AI tokens, estimate API costs, reduce prompt waste, and plan usage before you scale.
Start here
Guides
How to Reduce Prompt Costs
Practical ways to reduce prompt input tokens, control output length, and estimate savings.
Input Tokens vs Output Tokens
Learn the difference between the tokens you send and the tokens an AI model returns, and why both affect cost.
How to Estimate AI API Costs
Estimate users, requests, AI calls, input tokens, output tokens, and monthly API usage before launch.
Calculators
Methodology and trust
PromptMeter explains how its estimates work and where you should verify official pricing, usage dashboards, and provider billing.
Suggested path
- Measure your prompt
- Estimate monthly cost
- Compare savings
- Read the methodology
- Plan AI API usage