Free tools
Tools
Calculators for the numbers you need before you build: what an automation is worth, what a model will cost, whether a configuration fits, and what the risk actually is.
Every tool runs entirely in your browser. Nothing you type is sent anywhere, nothing is stored, and none of them ask for an email.
Automation ROI Calculator
Model time saved, error reduction, build cost and ongoing maintenance to get a payback period you can defend.
AI Token Cost Calculator
Model input and output tokens, request volume and caching to project monthly cost across model tiers.
Backtest Metrics Calculator
Paste a return series and get the risk-adjusted metrics that matter, with the assumptions stated. Educational only.
RAG Chunking Calculator
Work out how many chunks a corpus produces, what retrieval depth fits your context window, and what indexing will cost.
Position Size Calculator
Fixed-fractional and volatility-scaled position sizing, with the resulting portfolio exposure shown. Educational only.