AI Shopping Assistant: 9 Compared, and Which Can Buy (2026)

An AI shopping assistant is a chatbot or browser tool inside a store, a search engine or a browser that does the legwork of buying something. It compares products, sums up the reviews, shows you the price history and, in a few cases, checks out for you. You ask in plain words. It answers with products.

This guide is for the person doing the buying. If you run a store and want an assistant on your own site, read what Shopify's AI agents and store apps actually do or the margin-first map of AI agents for ecommerce stores instead.

The category moved faster this year than the pages ranking for it. Amazon renamed Rufus to Alexa for Shopping on 13 May 2026. Google announced a cart that spans merchants six days later. Microsoft announced in-chat checkout in January. ZDNet's December 2025 guide, still ranking for "ai deal finder", says Rufus, and so does Google's own AI Overview for "best ai shopping assistant".

So I built this around the one question shoppers actually ask. Can it buy for me, where, and what does it cost? As of October 2026: four of the nine can check out for you on some products, a fifth (Copilot) has announced it, all only in the U.S., and none of the nine lists a separate fee for its shopping feature.

If you live anywhere else, your list is shorter. I name the ones that still work for you near the end.

How I compared them

I read each vendor's own announcement, help and pricing pages on 8 October 2026, plus the older announcements that are still online. Nothing here comes from a review site or a search summary. The table's columns are the questions I put to each page.

What I did not do: buy anything, open these assistants as a customer, or judge how good their picks are. The chat surfaces sit behind a login or an app, so every screenshot below is of a public vendor page (announcements, help articles, an about page and a homepage), captured on 8 October 2026. I also opened Keepa and Daydream; neither page gave me enough to review.

I run an AI agent platform, Gravity. It does not shop for anyone, so its table row says what it does not do. For general-purpose assistants, nine personal AI agents compared for personal use is the wider list.

Quick comparison

Read on each vendor's own page on 8 October 2026. These features change monthly. The cost column is what each page says about the shopping feature itself; none listed a separate fee for it. Gravity's row says what it does not do.

1. Alexa for Shopping (formerly Rufus): the most features, nearly all inside Amazon

On 13 May 2026 Amazon brought Rufus and Alexa+ together and called the result Alexa for Shopping. The old Rufus pages are still up, each now carrying a rename note; the Rufus page reads: "On May 13, 2026, Rufus was renamed Alexa for Shopping." If a guide tells you to tap Rufus, it predates the rename or missed it; Google's own AI Overview still used the old name on 8 October 2026.

It works in the Amazon Shopping app, on amazon.com and on Echo Show devices, for U.S. customers. You ask questions in the main search bar, or tap the Alexa icon in the app's bottom navigation bar. It compares products side by side, writes short overviews on search and product pages, searches by photo and tracks your packages. Tap "Price History" on any product page and it shows up to a full year.

The most useful line on Amazon's page is Scheduled Actions. Tap "+" to schedule a restock of pet food, paper towels or detergent, with conditions attached. Amazon's own example prompt: "Add this sunscreen to my cart if the price drops to $10 and I haven't purchased it in the last 2 months." Price alerts and Auto Buy at a set price sit next to it, so a watch can end in a purchase at the price you set. No other assistant here pairs a restock schedule with a price condition.

Cost: free for anyone signed in to Amazon, with no Echo device, Alexa app or Prime membership required, as of October 2026.

Buy for Me reaches past Amazon, one item at a time

For other retailers, Alexa for Shopping points to Shop Direct. On eligible products, Amazon says the Buy for Me agent "handles the entire purchase on your behalf using your primary address and credit card". Buy for Me launched on 3 April 2025 as a beta for "a subset of U.S. customers", testing with a limited number of brand stores. That is the only rollout statement I found, so do not assume your account has it.

Amazon's help page, read 8 October 2026, sets the rules:

• You buy directly from the merchant, so returns and service are the merchant's. Amazon's return policy and the A-to-Z guarantee do not apply.
• You agree to pay up to $15 more than the estimated total in case the real price or shipping comes in higher (as of October 2026), and you are charged only the merchant's final price. Past that, Amazon checks with you first.
• One item per order, and no promo codes.
• Amazon shares your name, address, payment details, phone number and email with the merchant.

2. ChatGPT shopping research: a buyer's guide in a few minutes

OpenAI launched shopping research on 24 November 2025 for logged-in ChatGPT accounts on the Free, Go, Plus and Pro plans. You select products already in the chat and choose "Research". It asks follow-up questions, then after a few minutes returns a buyer's guide with top picks, trade-offs, a side-by-side comparison and links to merchants that currently sell each item. OpenAI says your chats are never shared with retailers.

OpenAI's own announcement warns that shopping research "might make mistakes about product details like price and availability". The help page adds that some retailers block automated access, and tells you to confirm the final price, taxes, fees and shipping on the retailer's website. Take that literally.

Instant Checkout still appears, on some products

Instant Checkout is the part of ChatGPT shopping whose status changes most, so here is what OpenAI's pages say and when. It launched on 29 September 2025: U.S. accounts on Free, Plus and Pro could buy from U.S. Etsy sellers inside the chat, one item at a time, with the merchant paying a small fee and the shopper paying nothing extra. OpenAI's help page on shopping with ChatGPT Search, updated about 4 October 2026, says: "For some eligible products and merchants, ChatGPT may also show an Instant Checkout option."

Two caveats sit around that. Shopify stores that appear in ChatGPT send you to check out "on the merchants' online store". Walmart's 14 October 2025 announcement says its customers will "soon" shop Walmart through ChatGPT with Instant Checkout, and nothing I read confirms that it shipped.

The same help page says product results "are not ads", and that the price in the first answer usually comes from the first merchant listed, "which may not be the lowest available price". Scroll before you click. ChatGPT's plan prices did not load when I opened chatgpt.com/pricing on 8 October 2026, so none is printed here; shopping research works on Free regardless.

3. Google AI Mode and Universal Cart: buys when the price hits your number

Google's shopping assistant is spread across Search, AI Mode and the Gemini app. Its AI Mode shopping answers draw on the Shopping Graph, which Google put at "more than 50 billion product listings, 2 billion of which are updated every hour" in November 2025.

The feature to know is agentic checkout, announced on 13 November 2025. You track a price "down to the specific size, color and amount you want to spend". When it lands in budget at an eligible merchant, Google offers to buy it for you on the merchant's site with Google Pay. Google says it always asks permission first and buys only after you confirm the purchase and shipping details. Google said it was rolling out on Search, including AI Mode, with eligible U.S. merchants such as Wayfair, Chewy, Quince and select Shopify stores.

Universal Cart was due this summer, and its status is unconfirmed

At Google I/O on 19 May 2026, Google announced Universal Cart: one cart across merchants, shared by Search, Gemini, YouTube and Gmail. It finds deals and price drops, shows price history and alerts you when an item is back in stock. You check out with Google Pay "in just a few taps" or move over to the merchant's site. Named merchants include Target, Walmart and Wayfair, and Google's note says you can try those select checkout features "soon".

Google said Universal Cart would roll out across Search and the Gemini app in the U.S. "this summer", with YouTube and Gmail after. I could not confirm on 8 October 2026 how far that got. Google says checkout through these features expands to Canada and Australia "in the coming months" and later to the U.K. That is a lot of "soon".

Cost

No separate charge is listed on Google's announcements, as of October 2026.

Can it buy for you?

Yes, after you confirm, at eligible merchants, in the U.S.

Best for

Someone who knows exactly what they want and is waiting for the price.

4. Perplexity: free shopping with PayPal checkout

Perplexity's current shopping post, dated 25 November 2025, made shopping "available for free to all US Perplexity users". It remembers your past searches to shape results and shows product cards. Checkout runs through PayPal inside the same screen, and the retailer stays the merchant of record. It launched on desktop and web, with iOS and Android "in the coming weeks"; I did not confirm where the apps stand on 8 October 2026.

The 2024 post that still ranks describes an older version

Search "ai shopping assistant" and Perplexity's November 2024 post sits near the top. It describes "Buy with Pro", a one-click checkout for Pro users in the U.S. on select products from select merchants. The 2025 post made shopping free for every U.S. account, with PayPal checkout. I could not confirm whether "Buy with Pro" survives as a separate feature: Perplexity's help article on Instant Buy returned an error 500 when I opened it on 8 October 2026.

You do not need a paid plan to shop. If you want one for other reasons, Pro was $17 a month and Max $167 a month, each billed annually, as of October 2026; the monthly prices did not render on the page.

5. Microsoft Copilot: checkout announced, Buy still opens the retailer

Microsoft's consumer help page says Copilot "can help you find the right product, compare options, get the best deal, and discover thoughtful gifts". Product details include sizes, retailers, review summaries, return windows and price history, and there is a Shopping homepage in the left pane under More. Step 4 of the page reads: "When you're ready to purchase, select Buy to go to the retailer's purchase page."

That sits awkwardly beside a Microsoft announcement for advertisers from 8 January 2026, which says "Copilot Checkout is beginning to roll out in the U.S. on Copilot.com" through PayPal, Shopify and Stripe, with Urban Outfitters, Anthropologie, Ashley Furniture and Etsy sellers at launch. So expect in-chat checkout from some U.S. merchants and a link to the retailer everywhere else.

Copilot in Edge is the part built for comparison shopping. It reads across your open tabs and summarizes them, and one of Microsoft's example prompts is "Help me not regret this purchase". Microsoft says availability varies by market, device and subscription, and the shopping page covers personal Microsoft accounts. None of the three pages lists a fee for shopping, and I did not read a Copilot plan price.

6. Walmart Sparky: help inside the Walmart app, and that is all

Walmart introduced Sparky on 6 June 2025 as a GenAI assistant that sums up reviews, suggests products for an occasion and helps you plan, compare and purchase. You open it from the "Ask Sparky" button in the Walmart app. The help page is blunt about the limits: Sparky is only in the Walmart app, for U.S. customers who are signed in, and it is "designed to help you shop with Walmart". It also asks you not to rely on it for medical, legal or financial advice.

Walmart's pages describe recommendations and comparisons; automatic reordering, booking services and multimodal input are listed as coming. Neither page mentions a price alert, a buy-for-you feature or a charge.

7. Capital One Shopping: codes and cheaper sellers, no bank account needed

Capital One Shopping is a deal finder that lives in a browser extension and a phone app. There is no chat on the pages I read. It applies promo codes to your cart, sends price drop notifications, including on things you already bought, and while you browse Amazon it "searches thousands of merchants to see if a better deal is available". It runs on Chrome, Firefox, Edge and Safari, with iOS and Android apps.

Its help center says you do not need to be a Capital One customer or cardholder: the service "is free to everyone". Outside the U.S., features may be limited.

Capital One Shopping earns a commission on eligible purchases

The homepage says Capital One Shopping earns a commission when you make eligible purchases from merchants and may share some of it with you as Shopping Rewards. Those rewards have no cash value and redeem for eGift cards. You still check out yourself, on the retailer's site.

8. camelcamelcamel: the plain Amazon price tracker

camelcamelcamel calls itself "a free Amazon price tracker". You create a price watch and it emails you when the price drops; it also charts the price history of millions of Amazon products, and it offers a browser extension called the Camelizer. Its homepage claims no AI at all. That is why it is here: it is the baseline every assistant above has to beat.

It covers Amazon's stores in Australia, Canada, France, Germany, Italy, Spain, the United Kingdom and the United States, the widest published country list in this comparison. The site blocks automated browsers, so there is no screenshot. Cost: free. It does not buy.

9. Phia: a fashion deal agent that sends you to the seller

Phia's homepage calls it "your AI shopping agent" and promises to "find the best pieces across 220,000+ sites", with the lowest price, free coupons and gift cards earned with points. It runs as an iOS app, which adds a Safari extension, and as a Chrome extension. The page lists no Android app.

Phia's two big numbers measure different things

The 220,000+ sites belong to the shopping search on the homepage. The FAQ's "over 150 trusted resale partners" is the secondhand price comparison, and Phia relies on those partners to authenticate the goods.

It does not buy for you. In its own words: "All purchases and transactions happen securely on our partner websites. Phia simply directs you to these platforms." It earns through affiliate links from its resale partners "at no extra cost to you", and no fee is stated, as of October 2026.

Best for

Fashion, especially secondhand.

Platforms

iOS with Safari, and Chrome on desktop.

What none of them do

Put the nine side by side and one gap shows. Every price watch lives inside the tool that set it. Alexa for Shopping watches Amazon. Google watches what its Shopping Graph and cart can see, and buys only at merchants it lists as eligible. camelcamelcamel watches Amazon. Capital One Shopping alerts you through its own extension and app. (Nobody keeps their whole life in one store, though several of these companies would like you to.)

Restocks follow the same shape. Alexa's Scheduled Actions let you schedule a detergent restock on Amazon. If your detergent comes from Target, your coffee from a local roaster and your printer ink from whichever site is cheapest that week, no assistant on this list runs that list for you.

Three chores fall through the gap:

• One item, three stores you pick, checked every morning, with a single message when any of them drops under your number.
• A household restock reminder on a cadence, across the shops you actually use.
• A weekly list of new listings that match a description.

Each is a scheduled check plus one message. That is task-agent work. The same pattern covers rentals and fares in the AI agent watch list for apartments and flights.

Which one should you choose?

If you shop mostly on Amazon in the U.S., use Alexa for Shopping. It is free when you are signed in, keeps up to a year of price history and will Auto Buy at your price, as of October 2026.

Not sure what to buy yet? Start with ChatGPT shopping research on the Free plan. Then confirm the final price on the retailer's site, as OpenAI itself tells you to.

For something bought the moment it drops, in the U.S., set a price track in Google and let agentic checkout offer to buy at an eligible merchant. Perplexity is the alternative if you would rather check out with PayPal inside a chat.

If you are weighing a big purchase across several open tabs, Copilot in Edge is built for that. Do not count on in-chat checkout there yet.

Paying full price annoys you? Install Capital One Shopping for codes and cheaper sellers, and keep camelcamelcamel for Amazon price history. For clothes and resale, Phia. Sparky is for Walmart regulars with questions about Walmart's catalog, which is all Walmart's pages promise today.

Outside the U.S., every buy-for-you feature in this guide is off the table on the pages I read. camelcamelcamel covers Amazon in seven other countries, Capital One Shopping works with limited features, Copilot varies by market, and ChatGPT's shopping research rollout note names plans rather than countries.

Seasonal lists and travel prices have their own guides: back-to-school planning with an AI agent and AI agents for travel booking optimization. Whichever assistant you pick, check the total before anything charges your card. I have not bought through any of them, so the checkout itself is yours to judge.

FAQ

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