ARC INDEX · HOME
Casper
WHAT GROK TOLD A SHOPPER
One AI model's read-back recommended this.
Checked 9 Oct 2026. One AI model's read-back (currently Grok via API, not the consumer Grok app). One model, not a consensus.
Tested product: Casper One Foam. Product page · Store
Score
83
of 100 · 4 of 5 shoppers added to cart
Browser shoppers
4 of 5
Browser cart shoppers that added the product to the cart. The score is this lane. The catalog check does not change it.
Tested 6 Oct 2026. How ARC tests
CAN AGENTS BUY
Agents can reach checkout through Shopify's agent catalog. 4 of 5 browser cart shoppers also added the product to the cart.
AGENT CATALOG · REAL
Checkout link. The catalog returned the tested product.
ARC BROWSER CART TESTS
4 of 5 added the product to the cart. Stuck at adding the product to the cart.
View or refresh the free agent checkout check for casper.com →
GROK · REAL MODEL
One AI model's read-back recommended this.
Checked 9 Oct 2026. One AI model's read-back (currently Grok via API, not the consumer Grok app). One model, not a consensus.
Model x-ai/grok-4.20
Casper One Foam is top-rated by Consumer Reports at a great price. Consider Purple Restore or Helix Midnight for hybrid cooling options instead.
Rivals one model named: Purple Restore, Helix Midnight, Tuft & Needle
| Fact | Check | The model said | Store page |
|---|---|---|---|
| Price | Match | Queen sale price $699 | $699–$1558schema.org JSON-LD"price":"699.00"Source page |
| Returns window | Couldn't verify | 100 nights | — |
| Shipping cost | Couldn't verify | Free shipping | — |
| Availability | Couldn't verify | In stock ships 1-2 days | — |
| Delivery estimate | Couldn't verify | Ships in 1-2 days | 2–8 daysPolicy paged Shipping In stock products are typically delivered within 2-8 business days after order.Source page |
Each shopper
- ARC browser shopper AAdded to cart
- ARC browser shopper BAdded to cart
- ARC browser shopper CAdded to cart
- ARC browser shopper DAdded to cart
- ARC browser shopper EStopped
The failure
Couldn't add it to the cart
This stopped 1 of 5 agents.
Top fix
Use a real Add to cart button, and show that the item landed in the cart.
History
- 6 Oct 202683/100 · browser 4 of 5 · Couldn't add it to the cart
- 5 Oct 202683/100 · browser 4 of 5 · Couldn't add it to the cart
Is this your store?
The free scan puts the score on screen and emails the full report.
Share this result
Every ARC page and dataset is free to read, cite and reuse.
OpenClaw only follows labelled controls. A block at the door is one result for all five, with the HTTP evidence. The score is the ARC browser cart, the same number as a free scan. The agent-catalog check above is real and leads the buy verdict. It does not change the score. How it works.
BADGE FOR YOUR SITE
Put this on your site. It links back here. It says Agent checkout when the real catalog check returned a checkout link, and Agents chose us only when a browser cart shopper added the product to the cart.
<a href="https://www.arcreport.ai/agent-index/casper"><img src="https://www.arcreport.ai/agent-index/casper/badge" width="360" height="72" alt="Casper on the ARC Index. Agents chose us. ARC score 83. Agents can reach checkout through Shopify's agent catalog. 4 of 5 browser cart shoppers also added the product to the cart."></a>
Want a re-test, or this page removed? Contact ARC or email hello@arcreport.ai.