Free tools
AI calculators.
Put numbers on your AI decisions. Everything runs in your browser — nothing you type is sent or stored.
Token & cost estimator
Paste a prompt, pick a model, see the cost per request, day and month — and the same workload across every model.
Open →Agent run cost
See why agent loops get expensive, and how caching and trimming change the bill.
Open →Energy, water & CO₂ footprint
Sourced low–mid–high estimates for your monthly AI usage, with model-to-model comparison.
Open →Automation ROI & payback
Hours saved, net value and payback period for an automation, with a realism haircut built in.
Open →