Phoebe Gates keeps her name out of Phia, after $43M raised and a cookie-stuffing fix
The 23-year-old AI shopping founder says she is building on merit, while Phia updates an extension after affiliate policy issues surfaced.

Phoebe Gates, cofounder of AI shopping startup Phia, has raised more than $43 million and sought a business identity with “no ties to my privilege or my last name.” The consequence for decision-makers: Phia’s growth now includes a high-stakes tech and compliance reality check tied to affiliate attribution and investor scrutiny.
Phoebe Gates has a very specific line she wants out of her startup story: her last name. The 23-year-old youngest daughter of Microsoft founder Bill Gates and philanthropist Melinda French Gates told Yahoo Finance’s Opening Bid Unfiltered podcast in an episode published in February that she wants Phia to succeed “with ‘no ties to my privilege or my last name,’” adding, “I have a chip on my shoulder.” That matters because Phia is no small side project. The company, an AI shopping assistant co-founded by Gates and her Stanford University roommate Sophia Kianni, has raised more than $43 million and is valued at around $185 million.
The other part of the headline gets paid off by a separate, very practical problem: Phia’s browser extension allegedly claimed credit for online sales it did not drive, a practice known as “cookie stuffing.” Bloomberg reported this week that when testing the extension across more than 50 websites, alongside Capital One Shopping and an independent researcher Ben Edelman, Phia silently opened a background tab during checkout and injected its own referral code, overriding legitimate referrals from other publishers in violation of many affiliate networks’ policies. After Bloomberg reported the issue, a Phia spokesperson told Bloomberg the company was made aware within the prior 24 hours that a recent code release “was causing misattributions from a subset of users,” and said the issue had been fixed. Bloomberg then retested after contacting Phia and found the extension had stopped automatically claiming the referral click.
Put those two threads together and you get a rare, real-world test of the “merit only” narrative. Gates is trying to win on customer value and execution, but her startup lives inside a digital economy that punishes messy incentives. Affiliate marketing is full of rules because attribution decides who gets paid. When an extension reaches into checkout behavior and manipulates referral codes, it can quietly break partner relationships even if users never notice. That is why the fix matters to decision-makers beyond Phia. The moment regulators and platforms care about attribution integrity, the compliance surface area for “AI agents” grows overnight from “cool software” to “trackable, testable behavior.”
Phia’s product is built to help shoppers compare prices and find deals across tens of thousands of retail and resale sites in real time. The extension plugs into browsers like Chrome and Safari and functions like a personal deal finder. Gates described a typical workflow in a Fortune interview: imagine you are looking at a $200 dress from Anthropologie; Phia can find and compare prices at secondhand sellers to help consumers locate a better price. The broader market context is that investors have been pouring into AI “agents” that automate digital tasks, and Phia’s growth has reflected that appetite. The New York-based startup launched its app in 2025 and has grown quickly, garnering hundreds of thousands of downloads in its first months.
But rapid adoption and policy correctness are not automatically aligned. According to the source, a recent $35 million funding round led by Notable Capital, with participation from firms including Kleiner Perkins and Khosla Ventures, pushed Phia’s valuation to about $185 million less than a year after an initial $8 million seed round. In other words, capital markets have been rewarding speed and momentum. Yet affiliate misattribution, if it had persisted, would have created a different kind of momentum: partner churn, publisher complaints, and a credibility hit that takes far longer to repair than a code release. That is exactly why this story is relevant to boards and executives across consumer tech. The technical behavior that wins a short-term click can trigger long-term distribution friction.
Then there is the investor dynamics layer. Gates insists she is not taking money from her parents for Phia. She and Kianni have raised outside capital instead, even as some investors remain fixated on her personal life rather than the business venture. Meetings reportedly drift toward questions about what happens “when you two go have babies?” Gates said this topic came up in meetings before and called it frustrating for the duo. The source includes French Gates’s quoted advice from an April 2025 appearance on Call Her Daddy: “Get up or get out the game.” Gates said she remembers crying about it, calling her mom, and hearing that line. This backdrop is not fluff. It is a reminder that founders, especially with prominent families, often carry two scoreboards at once: business performance and narrative credibility.
Also, the source notes that Gates’s father’s connections to Jeffrey Epstein have resurfaced. Representatives for Bill Gates have repeatedly denied his involvement and any related accusations, and Phoebe Gates did not comment about the allegations. Separately, the source says French Gates earlier this year said her ex-husband “has to answer” for Epstein files mentions just weeks after it was revealed she had received $8 billion toward her philanthropic organization, Pivotal, as part of her divorce settlement. While Phia is primarily a consumer product story, these headlines can still shape how outsiders interpret a founder’s motives, especially when the founder is publicly positioning the venture as independent.
For executives and investors watching Phia, the lesson is not “avoid AI shopping.” It is that “AI agents” do not float above the rules. They operate inside systems governed by attribution, partner policies, browser behavior, and platform enforcement. A startup can have genuine customer utility, like deal discovery across retail and resale sites, and still stumble on the mechanics of revenue capture. The fastest way to lose trust in a growth cycle is to create a misalignment between user experience and ecosystem incentives.
In that sense, Gates’s “chip on my shoulder” is more than a quote. It is the operating philosophy of a founder trying to prove that she can build something novel and unique that consumers love, while also surviving the unglamorous stress tests that come with scaling. If Phia’s attribution issue is truly fixed after the reported retest, the company gets another chance to focus on product and retention. If it is not, this is the kind of problem that turns into a board-level risk committee agenda item fast.
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