Shoptalk 2026 Recap: OpenAI, Google, and Retailers Rethink AI Shopping

OpenAI is pulling back from Instant Checkout and replacing it with dedicated ChatGPT apps built by individual retailers. Google released a Universal Commerce Protocol that lets AI agents fill shopping carts, check live inventory, and carry loyalty perks across platforms. Gap Inc. became the first major fashion brand to enable purchases directly inside Gemini. These three announcements dominated Shoptalk 2026, held March 24-26 at Mandalay Bay in Las Vegas, and together they signal that AI commerce is shifting from chatbot gimmick to real retail infrastructure — with the major players still figuring out who controls the transaction.

Why Did OpenAI Abandon Instant Checkout?

Walmart's Daniel Danker told the Morgan Stanley Technology, Media & Telecom Conference on March 4 that Instant Checkout's days were numbered. "By this time next month, you will not see that experience anymore," Danker said, confirming that Walmart's Sparky AI assistant would instead integrate into ChatGPT as a dedicated app "as soon as next week."

The pivot makes strategic sense. Instant Checkout asked consumers to trust a chatbot with payment credentials and delivery details — a hard sell when only 34% of shoppers were willing to complete payment inside an answer engine as recently as mid-2025 (Forrester, July 2025). Dedicated apps let retailers keep their own checkout flow, branding, and customer data while still appearing inside ChatGPT's conversation interface. Etsy and Sephora are both developing ChatGPT apps. Shopify merchants are already connected through Agentic Storefronts. OpenAI's Mahak Sharma framed the change carefully at Shoptalk: "We're in the early days of AI commerce... just like any technology has its adoption cycle."

What Is Google's Universal Commerce Protocol?

Google's Universal Commerce Protocol (UCP) is an open standard that gives AI shopping agents a common language for interacting with retailer systems. An AI agent using UCP can pull live product availability from a retailer's catalog, add items to a cart, apply loyalty points, and hand off to checkout — all without custom integrations for each store.

Salesforce and Stripe are plugging into UCP at launch, which gives the protocol immediate reach across payment processing and CRM infrastructure. Gap Inc. moved first among fashion brands, partnering with Google to enable purchases directly within Gemini. Home Depot told attendees it is working with Google, OpenAI, and Microsoft simultaneously, "testing to see what consumers latch onto" — a hedging strategy that suggests even the largest retailers expect the platform landscape to remain fragmented through at least 2027.

Where Does Consumer Trust Stand?

An Omnisend survey of 1,072 US consumers published in March 2026 found that 80% now accept AI handling checkout, up from 34% one year ago — a 136% increase. Thirty-eight percent have already purchased something through ChatGPT. But 70% said they would abandon a retailer that used AI for dynamic pricing, charging one person more than another based on personal data.

That split defines the current state of AI commerce trust. Consumers are increasingly comfortable with AI executing a purchase, but they draw a hard line at AI setting the price. Retailers that use AI to optimize convenience will gain adoption. Retailers that use AI to optimize per-customer pricing will lose customers faster than they gained them.

How Are Retailers Placing Their Bets?

The dominant strategy at Shoptalk was multi-platform hedging. No major retailer committed to a single AI partner. Walmart is building for ChatGPT. Gap chose Gemini. Home Depot is testing all three major platforms. Sephora is launching inside ChatGPT while maintaining its own app. The retailers with the strongest existing digital infrastructure — Walmart, Sephora, Home Depot — are treating AI channels as extensions of their existing omnichannel strategy, not replacements for it.