Usage-based · no lock-in
Pay per claim, in credits.
Every signup includes 1,000 free credits. Credits never expire. A check is priced from the number of claims in your content. We count them before you submit, so the quote is the charge.
The default. Every claim checked against screened live-web evidence in seconds, with audited citations and a confidence band.
Enterprise-grade. Up to four models from different providers research each claim on the live web, a challenger and a judge rule. Pricier models raise the rate by their credit weight.
A per-check fee that scales with the document, so a one-sentence API call stays cheap. The spell & style pass adds +5. Connectors add from +5. Deep research on a single claim costs 50.
Example: a 12-claim article with Stamp AI and Spell & Grammar = 12 × 5 + 5 + 100 = 165 credits. The same article on the Research Panel: 585 credits on the recommended panel.
Re-checking a draft? Opt in on the check and every unchanged claim your organization verified in the last 24 hours keeps its verdict, free, labelled with when it was verified.
Estimate a check
Pick the depth and the number of claims. The price below is exact.
Credit packs
We refund failed checks automatically.