Free AI cost tools
Analyze bills.
Compare AI costs.
For builders and small teams using several AI tools: understand what you pay, see what is missing, and choose one change to test.
Free tools · no account or payment needed for browser analysis · exports stay in browser memory
Try the example → bring a supported export → review your costs → download your analysis. Formats & first steps →
Browser tools
Start with the question you have today. Try sample data before bringing your own.
Model pricingCompare model prices
Explore model prices, enter your expected usage, and compare estimated input, output and cache costs. Inspect the source and observation date behind each figure.
Compare model prices →OpenRouter channel prices. A lower estimate needs a quality and reliability test on your own work.
Billing exportsAnalyze your AI bill
Bring API usage exports together, add subscriptions, and see reported spend by provider, model and project. Estimate future costs while keeping missing data visible.
Analyze my bill →Supports documented OpenRouter, OpenAI, Anthropic and generic CSV formats. Subscriptions are entered manually and shown separately.
Articles, audio & worksheets
Learn how to review AI costs
A practical podcast and working tools for turning an idea into a test on your own stack.
Listen / The AI Bill podcastCheaper model. Bigger bill?
Episode one explains why a lower unit price can still raise total spend, and how to judge cost per useful result. Includes audio, chapters and a full transcript.
Listen to episode one →Use / Listener toolsPlan and review cost changes
Use the bill worksheet to investigate one workload, then record your evidence, next test and review date in a decision log.
Open worksheets & decision log → Optional human help / after your free review
Want an independent second look?
The $500 AI Bill Teardown reviews a defined scope of your stack and gives you a written breakdown, prioritized tests and a review call. Read the sample and terms before enquiring.
What decision did the tools help you make? Share feedback or ask for help. Please leave out bill files and credentials. For the method, read the handbooks and reference material →