Hunt for the best price across online retailers with a shopping agent

The Verge's Mia Sato sent Meta's Muse after moisturizer, granola bars, a mattress and a vintage dress; bot checks and an Amazon block left it slower than searching herself.

Done withMeta MuseinAmazon· Oct 22, 2026

What they did

Sato, a reporter at The Verge, tested Muse on everyday shopping jobs. She asked it to find one specific face moisturizer, the lowest price per bar for granola bars, and mattresses under a set price. She also gave it photos of a vintage dress she has been hunting, with the year it is from, keywords, notes on similar items and the secondhand platforms to start on. On The RealReal she tested a loop: Muse added the ten newest listings from a favourite brand to her cart and re-added them each time the 20-minute hold expired, all day, with no intention of buying.

How it went

The results were patchy. Target's bot check stopped Muse one day and let it through the next, then blocked it again on the mattress search minutes after it had pulled from the site. For granola bars it returned Sam's Club, Walmart and Costco options but said Amazon, which hard-blocks it, might have been cheaper and it could not check. It also suggested a grocery chain that does not ship to her address. With the waiting and the corrections, she reckons searching herself would have been faster. It never found the dress, but it did flag an upcoming auction of items from the same brand. The cart-holding loop worked, which she found uncomfortable on behalf of other shoppers.

Worth knowing

Amazon confirmed it asked Meta to remove it from Muse, and other sites block agents through ordinary bot defences, so a price comparison can quietly be missing the cheapest seller. Meta says users can take over at any time and that Muse asks permission before buying. This is one reporter's test over a short stretch, not long-term use.

Try it

With Meta Muse· 4 parts to fill in

Find the lowest price for [product, size and quantity] delivered to [my city or zip code]. Check [list of retailers] and work out the price per [unit]. For each option give the store, the total price with shipping, the price per unit and a link. Tell me plainly which sites you could not open or were blocked from, so I know what the list is missing, and drop any seller that does not ship to me. Do not add anything to a cart and do not buy anything; stop at the list and wait for me.

Square brackets are the parts to fill in. The prompt is ours; the story is theirs.

Where they said it

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