Does ARC check prices?

Yes, when a read-back exists. One model's account is compared with the store's page and labelled. The dataset-wide mismatch share is not measured.

How do stores fix price mismatches?

Keep page markup, feeds and the visible price in sync, then retest.

ARC · Answers

Do AI shopping agents see the right price?

When a read-back exists, ARC compares one model's account of price, shipping and availability with the store's page and labels a mismatch. The share of stores with a price mismatch is not measured in the current open dataset. ARC does not measure personalised pricing.

Short answer

When a read-back exists, ARC compares one model's account of price, shipping and availability with the store's page and labels a mismatch. Personalised pricing is not measured.

How ARC checks price

The read-back is one model, checked against the page. It is not a consensus of assistants, and ARC does not name the model here. A store page shows match, mismatch, or could not verify when that check has run.

Common causes

The page, the feed and the structured data can disagree, or the page can be unreadable. The fix is to keep those sources on the same price. ARC does not edit the store's data.

Personalised or dynamic pricing

Personalised pricing: Not measuredNot measuredARC does not see a price that changes per shopper. Not measured is not 'no personalised prices'.Snapshot 2026-10-12.r2, 12 October 2026.

Mismatch facts among facts judged match or mismatch: 48 of 176 (27.3%)MeasuredARC fact-check hub, stored read-backs on Index stores. The open dataset CSV does not include these rows. Snapshot context: 2026-10-12.Snapshot 2026-10-12.r2, 12 October 2026.

Fix list

Keep the visible price, the structured data and the catalog feed on the same number, currency and stock. Then retest the store page.

Frequently asked questions

Do AI shopping agents see the right price?: When a read-back exists, ARC compares one model's account of price, shipping and availability with the store's page and labels a mismatch. The share of stores with a price mismatch is not measured in the current open dataset. ARC does not measure personalised pricing.
Does ARC check prices?: Yes, when a read-back exists. One model's account is compared with the store's page and labelled. The dataset-wide mismatch share is not measured.
Do agents get personalised prices?: ARC does not measure that.
How do stores fix price mismatches?: Keep page markup, feeds and the visible price in sync, then retest.

On ARC

Cite this: ARC, arcreport.ai, accessed 2026-10-13, index snapshot 2026-10-12.r2, CC-BY-4.0. Protocol figures: Live saved checks, accessed 13 October 2026. Not a frozen snapshot. Index browser figures: Snapshot 2026-10-12.r2, 12 October 2026. Platform figures: Live saved checks, accessed 13 October 2026. Not a frozen snapshot.

Every figure is labelled Measured, Inferred or Not measured. Not measured is not zero. A missing result is not a mark against a store. ARC stops before payment.