The race for the customer is on.
Formula 1 via Getty Images
There is a battle underway for control of the retail transaction. Amazon has been fighting it for two decades. OpenAI declared its intent openly, embedding checkout directly into ChatGPT and building a merchant fee model around every completed purchase. Google spent years owning discovery without owning the transaction, and then launched Gemini checkout in January 2026, moving from the highway to the destination. Payment platforms have been quietly taking their cut for years. And most retailers are still deciding whether to fight back or hand over the keys.
Walmart just answered that question. When it stepped back from enabling purchases inside ChatGPT in October, the headline called it a retreat. Look closer. Rather than letting OpenAI run the checkout experience, Walmart took it back, embedding its own Sparky chatbot into ChatGPT and Google Gemini instead. Walmart kept the distribution and took back the relationship. That is not a retreat. That is what it looks like when a retailer plays offense in a war most of the industry has not yet admitted is happening.
The courts are starting to catch up. When Amazon sued Perplexity in November for using its Comet AI browser to shop on behalf of customers, the legal question sounded technical. A federal judge made it simple. She ruled that a user's permission to an AI agent does not substitute for the platform's own authorization. Those are two separate things -- and platforms get to enforce the difference. Amazon had warned Perplexity five times. Built a technical wall. Watched Perplexity tear it down within 24 hours. The lawsuit followed. The injunction followed that. The ruling is still being appealed, so it isn't settled law. But the direction is clear. Retailers don't just get to choose their strategy. They may soon get to enforce it.
AI is changing how people discover and evaluate products faster than most retailers are ready for. But influence is not control. And in commerce, control has always come down to one moment: the point of purchase. That is when the money starts flowing. That is the ground everyone is fighting for.
Commerce has long been won by whoever owns the customer at checkout. Every new platform — from search engines to social media to AI chatbots — has entered from the top of the funnel, promising discovery and scale. The pattern is consistent. They start with influence and push toward ownership. The question is never whether they will try. The question is whether retailers will let them.
We have seen this movie before. Payment networks like Visa and Mastercard once thought that owning the transaction meant they could own the customer relationship. Retailers did not cave. Payments became infrastructure. Retailers built the loyalty programs, kept the data and maintained the direct relationships on top of those rails.
That battle went to the retailers. This one is less certain — but retailers still have one important advantage. People do not actually buy the way AI assumes they do.
Customers rarely go straight from discovery to purchase. They compare, come back, second-guess and look for reasons to trust before they commit. Walmart learned this firsthand: conversion rates for products sold directly inside ChatGPT were three times lower than those that sent customers to Walmart's own site to finish the purchase. AI can support the buying process, but it has not replaced it. Not yet. That is the only reason retailers still have ground to defend.
That ground matters because the customer relationship is what drives loyalty, repeat purchases and long-term value. Cede it and you are not making a feature tradeoff. You are changing the economics of your entire business.
Every platform in this fight is betting on the same thing: that convenience will eventually override loyalty. That is the battle within the battle. And right now, convenience is winning on price and speed. Loyalty wins on everything else.
AI is strongest at the top of the funnel, helping people get answers, comparing options and narrowing choices. That is where ChatGPT and Google are staking their position. But Google built one of the most valuable companies in the world by owning discovery and still did not own the transaction. Customers searched on Google and bought on Amazon. Owning attention is not the same as owning the sale. Every platform fighting for the top of the funnel is betting they can change that equation. Retailers are betting they cannot.
So here is what I would tell any retail executive reading this. Know honestly where your brand sits on the commodity spectrum. That determines how much of this battle you are equipped to fight. Make a deliberate choice about which platforms you participate in and what you will not give up. Protect your checkout experience, because that is where your data and your loyalty live. And invest in the things no platform can replicate: community, in-person discovery, relationships that make customers feel like they belong to something. That is your moat. That is what keeps you in the fight.
The brands that held their ground during the Amazon era did it by building something that Amazon could not compete with: great experiences, communities, relationships and exceptional products. The ones that lost handed over discovery first, then loyalty, then the transaction itself. It happened slowly and then all at once.
There is one variable nobody can model yet. Younger consumers are building their shopping habits right now inside AI interfaces, without ever forming the brand loyalties that defined earlier generations. Whether retailers can create something compelling enough to earn that loyalty before the platforms do is the biggest commercial question of the next decade. Whoever wins that battle wins the war.
The battle for the transaction is not coming. It is here. Amazon is fighting it from the marketplace and in federal court. OpenAI and Google are fighting it from the top of the funnel. Payment platforms are fighting it at the moment of purchase. The question for every retailer is not whether to engage. You are already in it. The question is how much you can afford to give up and still own the relationship that keeps your business alive.
Walmart was not retreating. It was fighting back. Amazon is not just competing. It is drawing legal lines. The retailers that survive this era will be the ones that decide what they are willing to trade and build something worth protecting before anyone can take it.
The law can only defend what you’ve already decided to own. Decide.
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