AI Checkout

AI checkout is the ability to complete a purchase inside an AI assistant such as ChatGPT, Google AI Mode or Perplexity, instead of being sent to the merchant's site to pay.

Last updated: 2026-10-03

What Is AI Checkout?

AI checkout is the transaction step of agentic commerce: a shopper finds a product through an AI assistant and completes the purchase there, without leaving for the merchant's website.

It is worth separating two models. In discovery and redirect, the assistant recommends products and sends the shopper to the merchant's site to buy. The merchant keeps the full checkout and customer relationship. This is still how most AI shopping works. In AI checkout, the purchase completes inside the conversation, with payment handled by a processor and the order passed to the merchant's systems.

The platforms implement AI checkout differently:

  • ChatGPT: Instant Checkout, built on the Agentic Commerce Protocol with Stripe, ran from September 2025 to March 2026. ChatGPT now sends shoppers to the merchant's site, with in-conversation purchases moving to retailer-built ChatGPT Apps.
  • Perplexity: one-click checkout for Pro subscribers with saved payment details, and PayPal or Venmo checkout more broadly.
  • Google AI Mode: agentic checkout through Google Pay and Merchant Center, with the Universal Commerce Protocol defining the merchant side.
  • Microsoft Copilot: ACP-compatible checkout through Stripe.

How AI Checkout Works

Select in the conversation, confirm, pay through a tokenized processor, and the order lands in the merchant's normal systems.

The pattern is similar across platforms:

1. Selection. The shopper describes what they want. The assistant searches its index and presents options with images, prices and details.

2. Intent. The shopper picks a product and says they want to buy. The assistant shows variants such as size, colour and quantity.

3. Payment. The platform handles payment through its processor (Stripe, PayPal, Google Pay). The shopper's credentials are tokenized and never exposed to the assistant's model or to the merchant directly.

4. Confirmation. The merchant's order system confirms, and the assistant relays order number, delivery estimate and tracking in the conversation.

Security rides on established payment rails. Stripe tokenization for ACP, PayPal buyer protection for Perplexity and Google Pay for AI Mode provide the same protection shoppers expect from any online checkout. The card networks' agent-payment programs (Visa TAP, Mastercard Agent Pay) add agent verification underneath.

What Merchants Need for AI Checkout

A platform-specific integration for payment, and complete, current product data for everything that happens before payment.

The payment side is platform-specific:

ChatGPT: since March 2026, checkout happens on your site or inside a retailer-built ChatGPT App. ACP remains the standard for the product feed and for Apps that transact, through Stripe or a commerce platform that supports it.

Perplexity: the Merchant Program for indexing, plus PayPal or Venmo for payment.

Google AI Mode: complete products in Merchant Center, Google Pay through existing Shopping infrastructure, and UCP for full agentic checkout.

The product side is shared. Checkout can only happen for a product the assistant found, understood and chose to show. That depends on complete attributes, accurate price and stock in the feed, and descriptions that answer what the shopper asked. A checkout that fails because the item is out of stock damages trust in both the platform and the merchant.

Paz handles that product side for ecommerce teams. A Paz expert finds the gaps in your product information and feeds, fixes them at the source, our experts check the changes against agreed guidelines, and the platform tracks whether products appear in AI answers over time. See how it works.

FAQ

Is AI checkout secure?+
Yes. It uses established processors: Stripe for ChatGPT and Copilot, PayPal for Perplexity, Google Pay for AI Mode. Payment credentials are tokenized and never exposed to the assistant's model or the merchant directly. The same standards as conventional online checkout apply.
What fees do merchants pay for AI checkout?+
Appearing in AI answers is free on the major platforms. Fees apply only when a purchase completes inside the assistant, and the terms differ by platform and change over time. Check the current merchant terms for ChatGPT, Perplexity's Merchant Program and Google before planning around a number.
Can shoppers return products bought through AI checkout?+
Yes. The order flows into the merchant's normal order management, so returns, exchanges and customer service work as they do for any online order under the merchant's policy.
Do I need AI checkout to sell through AI assistants?+
No. Most AI shopping still ends with the shopper clicking through to your site. Being found and recommended comes first and depends on product information. AI checkout is a second step you can add when the platform and your payment stack support it.

Related terms

Instant Checkout in ChatGPT (Retired March 2026)

Instant Checkout was ChatGPT's in-conversation purchase feature, live from September 2025 to March 2026. OpenAI retired it in favour of discovery in ChatGPT with purchase on the merchant's site or inside a retailer's ChatGPT App.

Agentic Commerce Protocol (ACP): What It Is and How It Works

The Agentic Commerce Protocol (ACP) is an open standard, maintained by OpenAI and Stripe, that defines how a shopper, their AI agent, and a merchant complete a purchase while the merchant stays the system of record.

Zero-Click Buying

Zero-click buying is the idea that an AI agent handles product discovery, comparison and selection for a shopper, so the steps between intent and purchase shrink to a confirmation or nothing at all.

AI Shopping Agent: What It Is and How It Works

An AI shopping agent is software that searches, compares, and can purchase products on a consumer's behalf through natural language conversation, with degrees of autonomy that range from research to completed checkout.

AI Commerce Protocols

AI commerce protocols are the open standards (ACP, UCP, MCP, plus the payment-side AP2, Visa TAP and Mastercard Agent Pay) that define how AI agents discover products, access merchant systems and complete purchases.

How AI-ready are your products?

Check one product page for the information gaps that keep it out of AI answers and search results. If you want the fixes handled, Paz experts do that work for ecommerce teams.

Run free report →How Paz works