Every AI budget meeting has the same shape: someone quotes a vendor deck, someone quotes a tweet, and the biggest line item of the decade gets decided by whoever tells the best story. This is the alternative: twelve calculators that turn AI cost, energy and agent verification into numbers you can defend — free, no sign-up, with a JSON API any AI assistant can call.
They live at piszczek.pl/tools. This is the field guide: why they exist, how the models work, and what each one is for — with the worked examples I use myself.
Why: a concept you can't compute is an opinion
I've spent two decades building systems that turn information into decisions, and the last few years writing about the economics of AI — Joule Wars on the generation side, Proof-Adjusted Autonomy on the deployment side, Revocation Exposure on the security side. Essays are good at building intuition. They are terrible at settling arguments.
The arguments that matter in 2026 are numerical. Is an agent cheaper than a contractor? Depends on your verification minutes. Can your team absorb ten agents? Depends on review capacity you've never measured. Is the lighter model "worse"? Not per verified task, if the pass-rate gap is smaller than the energy gap. None of these have narrative answers — they have formulas with your inputs missing.
