Last fall, OpenAI launched Instant Checkout inside ChatGPT powered by an OpenAI-driven Agentic Commerce Protocol (ACP). Their bet was that they could own the entire purchase funnel.

This week, they quietly backed away. With low conversion rates, thin merchant adoption, and the sheer complexity of owning live inventory, pricing, fraud, and refunds, OpenAI is retreating to a discovery-only role and handing off transactions to third-party apps.

The problem was structural from the start. OpenAI tried to build a commerce layer from scratch with no merchant relationships, no payments infrastructure, no decades of shopping data, and no advertising business to align incentives.

Google has all of that. In January it responded to OpenAI announcing a checkout experience for Gemini paired with a competing Universal Commerce Protocol (UCP), with Etsy and Wayfair as early adopters. It also launched Gemini Enterprise for Customer Experience, with Kroger, Lowe’s, and Woolworths in the starting lineup.

Google doesn’t have to convince merchants to integrate because they’re already there. And it doesn’t have to earn consumer trust at checkout because it already has it. And to top it off, Google has a clear monetization path through advertising that doesn’t require taking a cut of every transaction.

The race for AI commerce isn’t about the interface. It’s about who owns the rails, and right now Google is the clear leader.

This puts more pressure on the teams developing open, decentralized commerce on Nostr with @46f63...03e90 . But we’ll take the challenge 💪🏻