ARC INDEX · FACT CHECK

What agents get wrong

When a real Grok read names another product, that is the first line. Under it, a mismatch is shown only when the store's own page genuinely disagrees. A price range that contains the store's price, a few cents of rounding, or a different currency is not a mismatch.

What Grok tells shoppers is a real model call via API, checked against the store's pages, not the consumer Grok app. Whether agents reach checkout is two lanes: a real HTTP check of the store's agent catalog, and five ARC browser cart tests. Those attempts are not a live Muse, Instinct, Grok Bot, OpenAI dots, or OpenClaw session. The score is the browser lane. The catalog check does not change it.

Latest check on 89 Index stores. 102 facts could not be verified from the page.

Match

124

Mismatch

Didn't know

170

Checked 11 Oct 2026
Floyd. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 10 Oct 2026
Daily Harvest. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 9 Oct 2026
Chamberlain Coffee. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $21.60. Your site says $24.
schema.org JSON-LD: “"price":"24.0"”
Source page
Checked 9 Oct 2026
Ghia. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 9 Oct 2026
ButcherBox. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $14.40 for 1.75 lbs. Your site says $90.
schema.org JSON-LD: “"price":"90.00"”
Source page
Checked 9 Oct 2026
Four Sigmatic. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your returns window is 60 days. Your site says 45 days.
Policy page: “Items returned to us after 45 days of the initial purchase date and/or without contacting Four Sigma Foo”
Source page
Checked 9 Oct 2026
Athletic Brewing. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is Free on $50+ continental US. Your site says free.
Policy page: “$10.99 limited and pilot brews Free continental US shipping 25% off merch Members brews & more!”
Source page
Checked 9 Oct 2026
Trade Coffee. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 9 Oct 2026
Brightland. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 9 Oct 2026
Buffy. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is free. Your site says $149.00.
Policy page: “lp How do i wash eucalyptus sheets? Starting your complimentary tiral Shipping & returns Best Sellers Shop All → Breeze Sheet Set Bed Sheets · 40 colors $149.00 Breeze Pillowcases Pillowcases & Sham”
Source page
Checked 9 Oct 2026
Brooklinen. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 9 Oct 2026
Partake. One AI model's read-back named Simple Mills, Enjoy Life, or MadeGood instead.
Real Grok model via API, not the consumer Grok app.
Checked 9 Oct 2026
Hu. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $4.27 per 2.1oz bar. Your site says $36.
schema.org JSON-LD: “"price": "36.00"”
Source page
One AI model's read-back says your delivery estimate is up to 10 days processing. Your site says 2 days.
Policy page: “y All orders over $75 receive complimentary standard (FedEx 2 Day Delivery) shipping.”
Source page
Checked 9 Oct 2026
Fishwife. One AI model's read-back named Fishwife Smoked Salmon, or Fishwife Chili Crisp Salmon instead.
Real Grok model via API, not the consumer Grok app.
Checked 9 Oct 2026
Fly By Jing. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your delivery estimate is 3-7 business days. Your site says 2–4 days.
Policy page: “Shipping normally takes 2-4 business days depending on your location.”
Source page
Checked 9 Oct 2026
Material. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is free shipping. Your site says over $100.
Policy page: “Shop our collections We recommend The Trio of Knives Almost Black Add to cart $195 Add to cart Add to cart Shipping policy Free shipping on all orders over $100 in U.S.”
Source page
Checked 9 Oct 2026
Graza. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $21 for 500mL. Your site says $22.99.
schema.org JSON-LD: “"price": "22.99"”
Source page
Checked 9 Oct 2026
Liquid Death. One AI model's read-back named Fiji Water, Evian, Smartwater, or Boxed Water instead.
Real Grok model via API, not the consumer Grok app.
Checked 9 Oct 2026
OLIPOP. One AI model's read-back named Poppi, Culture Pop, or Zevia instead.
Real Grok model via API, not the consumer Grok app.
Checked 9 Oct 2026
Magic Spoon. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $39 for 4-pack. Your site says $9.75.
schema.org JSON-LD: “"price": "9.75"”
Source page
Checked 9 Oct 2026
Casper. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 8 Oct 2026
Outer. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 8 Oct 2026
Boll & Branch. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is Free on U.S. orders of $100+. Your site says free.
Product page: “Cases California King Split King Add 2 extra matching pillowcases – $59 Add to bag Free Shipping on U.S.”
Source page
Checked 8 Oct 2026
Monos. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $234 sale from $275. Your site says $410.
Shopify product JSON: “"price":41000”
Source page
One AI model's read-back says your returns window is 100 days. Your site says 30 days.
Policy page: “apparel, and accessories, you may initiate a return within 30 days of the delivery of your item Items eligible for return must be in bra”
Source page
Checked 8 Oct 2026
BÉIS. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 8 Oct 2026
Away. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is free over $100. Your site says free.
Product page: “at Boston: Newbury Unavailable in store at Chicago Unavailable in sto Shipping Free shipping on luggage orders, and free returns and exchanges for the first 100 days on unused items { "@context": "h”
Source page
Checked 8 Oct 2026
LMNT. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $39 for 30 sticks. Your site says $45.
schema.org JSON-LD: “"price":45”
Source page
Checked 8 Oct 2026
Our Place. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is free over $135. Your site says free.
Policy page: “100 Day Trial: Free shipping $135+ and free returns This is a carousel with auto-rotating slides.”
Source page
Checked 8 Oct 2026
Parachute. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 8 Oct 2026
Vital Proteins. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is free over $50. Your site says free.
Policy page: “Code:GUMMIES25 Stay Vital Free Shipping on Subscription Orders *Packaging may vary Collagen Peptides Advanced with Hyaluronic Acid & Vitamin C $29 33oz with HA + Vitamin C $29 99 13 / serving 20oz with HA + Vitamin C $49 99 28 / serving…”
Source page
Checked 8 Oct 2026
Grüns. One AI model's read-back named Electrolit Variety Pack, or Quince Everyday Electrolytes instead.
Real Grok model via API, not the consumer Grok app.
Checked 8 Oct 2026
Huel. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $45 per bag or $2.65 per meal. Your site says $60–$126.65.
schema.org JSON-LD: “"price":"81.25"”
Source page
Checked 8 Oct 2026
Seed. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 8 Oct 2026
Momentous. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is Free over $99 US. Your site says free.
Policy page: “Free Shipping on U.S. Orders $99+ Use code: WELCOME10 for 10% your first order { this.updateButtonSta”
Source page
Checked 8 Oct 2026
MUD\WTR. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 8 Oct 2026
Fenty Beauty. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 8 Oct 2026
Drunk Elephant. One AI model's read-back named Lala Retro Nourishing Whipped Moisturizer, or Bora Barrier Rich Repair Moisturizer instead.
Real Grok model via API, not the consumer Grok app.
Checked 8 Oct 2026
Function of Beauty. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your delivery estimate is 5-7 business days. Your site says 7–9 days.
Policy page: “e formulate, and then we ship! This process typically takes 7-9 business days from the time the order is placed We'll make sure to send you a shipp”
Source page
Checked 8 Oct 2026
Olive & June. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your stock status is in stock. Your site says out of stock.
Product page: “Calendar $64.00 $127.00 12 Days of Mani Magic - Holiday Calendar $60.00 $128.00 Sold out 8 Nights of Mani Magic - Hanukkah Set $50.00 $72.00 Pressies 12 Days of Mani Ma”
Source page
Checked 8 Oct 2026
Rhode. One AI model's read-back named Summer Fridays Lip Butter Balm, Laneige Lip Glowy Balm, or Glossier Lip Oil instead.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your stock status is out of stock. Your site says in stock.
Shopify product JSON: “"available":true”
Source page
Checked 8 Oct 2026
e.l.f.. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is Free over $35. Your site says free.
Policy page: “Cosmetics One day only! Free shipping on us! No minimum spend or code needed.”
Source page
Checked 7 Oct 2026
Liquid I.V.. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 7 Oct 2026
Ritual. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 7 Oct 2026
The Ordinary. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $8.81 USD. Your site says $6.
schema.org JSON-LD: “"price":"6.00"”
Source page
Checked 7 Oct 2026
Olaplex. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is free on $50+. Your site says free.
Policy page: “Code: STYLE Free Shipping on $50+. Shop Now New here? Get 15% off your first order.”
Source page
Checked 7 Oct 2026
Native. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 7 Oct 2026
Jones Road. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 7 Oct 2026
ColourPop. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 7 Oct 2026
Kosas. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 7 Oct 2026
Tower 28. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 7 Oct 2026
ILIA. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is free over $50. Your site says free.
Policy page: “Free + Easy Returns this”
Source page
Checked 7 Oct 2026
Summer Fridays. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your stock status is in stock. Your site says out of stock.
Product page: “t.available ? (quantity > maxQty() ? 'The limit is reached!' : 'Add to Bag') : 'Sold Out') : 'Add to Bag'" > maxQty() ? 'The limit is reached!' : 'Add to Bag') : 'Sold”
Source page
Checked 7 Oct 2026
Glossier. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your returns window is 30 days. Your site says 5–10 days.
Policy page: “Credit card refunds usually take 5-10 business days to appear on your statement com and we’ll be sure to get you the Glos”
Source page
Checked 7 Oct 2026
APL. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your returns window is 30 days. Your site says 10 days.
Policy page: “All APL items can be exchanged or returned within 10 days of receiving them if they are in new, unworn condition and in their o”
Source page
Checked 7 Oct 2026
Thursday Boot Company. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is free over $50 US. Your site says free.
Policy page: “International Shipping & Returns - Thursday Boot Company Skip to main content Click image to zoom Double tap image to zoom Your Cart FREE SHIPPING & RETURNS IN THE U.S.”
Source page
One AI model's read-back says your delivery estimate is 1-5 business days. Your site says 6–8 days.
Policy page: “rate $140 and above FREE Canada orders typically arrive in 6–8 business days, though in rare cases delivery may take a little longer.”
Source page
Checked 7 Oct 2026
Rothy's. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 7 Oct 2026
Patagonia. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 7 Oct 2026
Saie. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your stock status is out of stock. Your site says in stock in 6 of 6 sizes.
Shopify product JSON: “"available":true”
Source page
Checked 7 Oct 2026
MERIT. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is free over $45. Your site says free.
Policy page: “We currently ship with DHL, FedEx 2-Day, USPS, CDL, Evri, DPD and Passport Shipper selection is determined to ensure the fastest possible delivery to your location Do you offer free shipping?”
Source page
Checked 7 Oct 2026
Rare Beauty. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $21. Your site says $28.
schema.org JSON-LD: “"price": "28.00"”
Source page
Checked 7 Oct 2026
Koio. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is Priced at $265. Your site says $275.
Shopify product JSON: “"price":27500”
Source page
One AI model's read-back says your shipping cost is Free over $150 US. Your site says free.
Policy page: “ibility Statement or contact us with accessibility-related questions. Shipping policy Free Shipping* $150 10% Store Cash $350 15% Store Cash $700 You’ve earned Free Shipping You’re $150 away from Fr”
Source page
Checked 6 Oct 2026
NOBULL. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 6 Oct 2026
Nisolo. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is Sale price $119 from $248. Your site says $248.
schema.org JSON-LD: “"price" : 248.0”
Source page
Checked 6 Oct 2026
Birdies. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 6 Oct 2026
Vessi. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 6 Oct 2026
Allbirds. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 6 Oct 2026
Set Active. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 6 Oct 2026
Tentree. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is free worldwide. Your site says $100.
Policy page: “shipping on all orders over $100. U.S.”
Source page
Checked 6 Oct 2026
Cotopaxi. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $149.93 (on sale from $225 at REI). Your site says $285.
schema.org JSON-LD: “"price": "285.0"”
Source page
One AI model's read-back says your delivery estimate is 3-7 business days standard. Your site says 1–6 days.
Policy page: “Free Standard Shipping Order Over $99 Delivers 2-6 business days (Mon - Fri) after ship date 3-Day Shipping Delivers 1-3 business days”
Source page
Checked 6 Oct 2026
Fashion Nova. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
White Fox. One AI model's read-back named Princess Polly, Beginning Boutique, Revolve, or Oh Polly instead.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
Princess Polly. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $20 (66% off from $58). Your site says $65.
schema.org JSON-LD: “"sku": "156681-1386544"”
Source page
One AI model's read-back says your shipping cost is Free over a threshold (add to qualify). Your site says $50.
Policy page: “SHIPPING OPTION GET YOUR ORDER ORDERS OVER $50 ORDERS UNDER $50 IMPORTANT INFO DISPATCH TIME Standard Shipping 4-8 Business Days FREE $6.99 USD Our Standard shipping service will arrive within 4-8 business days.”
Source page
Checked 5 Oct 2026
Good American. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
Knix. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your shipping cost is free over $100. Your site says free.
Policy page: “Free Standard Shipping Orders under $100* USD = $9 99 USD *After discounts, before shipping and taxes ca to order in US Dollars!”
Source page
Checked 5 Oct 2026
SPANX. One AI model's read-back named Lululemon Align Tunic, Athleta Coaster Luxe Tunic, or Vuori Daily Tunic instead.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
Mack Weldon. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $58. Your site says $28.99.
schema.org JSON-LD: “"price": 28.99”
Source page
Checked 5 Oct 2026
UNTUCKit. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your returns window is free returns within 45 days. Your site says 30 days.
Policy page: “of unworn, unwashed, undamaged or defective products within 30 days of the delivery date. Items that are returned in u”
Source page
Checked 5 Oct 2026
Chubbies. One AI model's read-back named Nike Steelers Polo, Fanatics Steelers Polo, or Tommy Bahama Steelers Polo instead.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
Marine Layer. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $110 (sale from $138). Your site says $138.
schema.org JSON-LD: “"price" : 138.0”
Source page
Checked 5 Oct 2026
Taylor Stitch. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
Cuts. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
True Classic. One AI model's read-back named Hanes Tall Crewneck T-Shirts, Fruit of the Loom Tall Crew T-Shirts, or Amazon Essentials Tall Fit T-Shirts instead.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
Alo Yoga. One AI model's read-back named Lululemon Pace Breaker, Nike Dri-FIT, or Under Armour Tech instead.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
Girlfriend Collective. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
Everlane. One AI model's read-back named Everlane The Easy Short, Madewell Perfect Vintage Short, Abercrombie & Fitch Tailored Short, or Gap High Rise Khaki Short instead.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your price is $118. Your site says $69.
schema.org JSON-LD: “"price":"69.00"”
Source page
Checked 5 Oct 2026
Outdoor Voices. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
Vuori. One AI model's read-back recommended this.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
SKIMS. One AI model's read-back named Nike Club Fleece Joggers, Adidas Premium Essentials Joggers, Lululemon ABC Jogger, or Uniqlo Sweat Joggers instead.
Real Grok model via API, not the consumer Grok app.
Checked 5 Oct 2026
Gymshark. One AI model's read-back named Lululemon Align Shorts, Vuori Daily Shorts, or Alo Yoga Airlift Shorts instead.
Real Grok model via API, not the consumer Grok app.
One AI model's read-back says your stock status is out of stock. Your site says in stock in 7 of 7 sizes.
schema.org JSON-LD: “"availability":"https://schema.org/InStock"”
Source page

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