The Hallucination Tax

How much of your AI is defensible?

Most AI invoices show one line: total spend. In under three minutes this calculator splits it into the defensible part — and the hallucination tax.

The Hallucination Tax

Calculate your Cost Per Defensible Output.

Tell us about your AI spend. We’ll split it into defensible spend and the hallucination tax. Estimates are fine — this is a directional model, not a precision instrument.

$

Total token, API and model spend across vendors.

Approximate is fine. Don’t know? Estimate.

Workflow type
Source visibility
Per-output confidence scoring
Methodology

A directional model, not a precision instrument.

The CPDO model gives credit for the two capabilities that determine whether an output is defensible: source visibility and per-output confidence scoring. Both are architecturally enabled by Seekr. The calibration is deliberately conservative — the point is not to predict your invoice to the dollar, but to force AI spend onto a CFO’s screen in two columns instead of one.

  • Traceable — the contributing Q&A pairs or source documents that influenced the output can be identified.
  • Source-attributed — each contributing source can be inspected and ranked by influence.
  • Confidence-scored — the output carries a confidence value the operator can act on: accept, route to review, or reject.