Fast Company published the clearest mainstream account of the agentic commerce race I've read yet. Worth reading in full.
The framing is Google vs. OpenAI, which builds the shopping platform consumers actually use. The Shopping Graph advantage is real. The protocol divergence between UCP and ACP is real. The OpenAI Instant Checkout failure is explained more honestly here than anywhere else I've seen.
But the article is written from the platform side. The brand side of this story is the one that doesn't get told.
Omar Qari's quote is buried near the middle, and it's the most important sentence: "OpenAI's first attempt at trying to get products into ChatGPT was to screen-scrape Dick's Sporting Goods or Ulta and show their products. And you can't blame them, because that's how they trained the model."
That sentence is the entire brand infrastructure argument in one line. The platforms are being rebuilt from scratch to handle real-time product data, inventory, loyalty, and checkout. Whether your brand shows up in that rebuilt infrastructure is not a function of which platform wins the race. It's a function of whether your product data is structured, machine-readable, and connected to whichever protocol the winner runs on.
Google wins; you need UCP integration and a Shopping Graph-compatible catalog. OpenAI wins; you need ACP integration and structured product feeds. Both need the same underlying infrastructure to work with.
The race between Google and OpenAI will determine which interface consumers use. The infrastructure work your brand does now determines whether you're in the room when that interface opens.