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The Washington Post reports that Katie Miller, a White House and former DOGE staffer, repeatedly attacked OpenAI’s ChatGPT in public posts without disclosing that she holds a financial stake in xAI, a competing AI company. The report raises ethics questions about undisclosed conflicts of interest.
Katie Miller, a White House communications staffer and former member of the Department of Government Efficiency (DOGE), repeatedly posted public criticism of OpenAI’s ChatGPT on social media without disclosing that she holds a financial stake in xAI, a rival artificial intelligence company, according to a Washington Post report. The findings, first surfaced through the headline of the Post’s investigation, center on whether Miller’s postings amounted to undisclosed promotion of a company in which she has a financial interest.
According to the Washington Post’s reporting, Miller attacked ChatGPT in a series of posts on X, the social media platform owned by Elon Musk, who also founded xAI. The Post found that she did not disclose in those posts that she holds a stake in xAI, the company behind the Grok chatbot, which competes directly with ChatGPT.
Miller is married to Stephen Miller, a senior White House adviser, and has served in a communications role after a stint with DOGE, the cost-cutting initiative led at its outset by Musk. Her public posture on X has included sharp commentary on technology and politics, and the posts targeting ChatGPT fit that pattern, the Post reported.
The core of the report is a conflict-of-interest question: whether a person with a financial stake in one AI company should disclose that interest while publicly attacking a competitor. Federal ethics rules generally require officials to recuse themselves from matters in which they hold financial interests and to disclose holdings on financial disclosure forms, though the specifics of Miller’s stake — its size, when it was acquired, and whether it appeared on any required filing — are detailed in the Post’s full investigation, which was not available in full at the time of this summary.
Why Undisclosed Stakes in AI Rivalries Matter
The report lands amid an unusually personal and commercial feud between OpenAI and xAI, whose founders — Sam Altman and Elon Musk — are locked in both business competition and litigation. Public criticism of ChatGPT from a government-affiliated figure carries weight with readers and markets, and undisclosed financial motivation can distort how that criticism is weighed.
For government employees and staffers, ethics rules are designed to prevent exactly this appearance problem: using a public platform to influence perception of a company in which the poster holds a stake. If Miller’s stake was not disclosed in the posts or in required filings, the Post’s report gives watchdog groups and ethics officials a concrete case to examine. The involvement of her husband, a senior adviser with influence over technology policy, adds a second layer of scrutiny about whether the family’s financial interests intersect with official decision-making.
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The Musk–OpenAI Feud Behind the Posts
xAI is the artificial intelligence company founded by Elon Musk in 2023, best known for its Grok chatbot, which is integrated into X. Musk co-founded OpenAI in 2015 but left its board in 2018 and has since become one of its harshest critics, suing the company and repeatedly attacking ChatGPT and Altman on his own platform.
Katie Miller joined the Trump administration’s communications team and was attached to DOGE early in 2025, when Musk led the initiative. Her presence on X and her ties to Musk’s orbit have made her account a frequent venue for commentary sympathetic to Musk-aligned positions, according to the Post’s framing. Financial disclosure requirements for White House staffers typically oblige them to report assets and income, and to recuse from matters posing conflicts.
“In posts attacking ChatGPT, Katie Miller didn’t disclose her stake in its rival.”
— The Washington Post (headline)
What the Report Leaves Unresolved
Several key details remain unclear without the full text of the Post’s investigation: the size and timing of Miller’s stake in xAI, how it was acquired, and whether it was reported on any government financial disclosure form. It is also not confirmed whether Miller’s posts were coordinated with xAI or Musk, or whether they violated any specific ethics rule as opposed to creating the appearance of a conflict.
Miller’s response to the report — whether she has commented, defended the posts, or disputed the characterization of her holdings — is not established in the available material. Whether any ethics office or watchdog group will formally review the matter is also unknown. Readers should treat the specifics as reported claims from the Post’s investigation rather than independently confirmed findings.
Possible Ethics Review and Disclosure Pressure
Watchdogs and congressional ethics bodies could request Miller’s financial disclosure filings or ask the White House counsel’s office whether the stake was reviewed. Miller may face pressure to publicly disclose the stake’s size or divest it. The episode could also sharpen scrutiny of other officials with ties to Musk-affiliated companies, particularly as xAI, OpenAI, and their investors compete for contracts and public attention.
Where I land
My read: if the Post’s reporting holds up, this is a genuine disclosure problem, not a technicality. A staffer with a financial stake in one AI company attacking a competitor — on a platform owned by that competitor’s founder — without disclosure invites the exact conflict-of-interest appearance ethics rules exist to prevent. The stronger her government role intersects with tech policy, the more it matters.
The strongest counterargument is that her posts were ordinary personal opinion, that her stake may already be disclosed in the proper filings, and that millions of people criticize ChatGPT daily without disclosing financial interests. Critics could also argue the report targets a mid-level staffer to embarrass her husband. Those points have force — but only if the filings actually exist and the stake is sizeable enough to matter.
What would change my assessment: evidence that Miller properly disclosed the xAI stake on required forms, or that her role gives her no influence over AI-related matters. Conversely, confirmation of an undisclosed, material stake with policy overlap would make this a serious ethics case, not a footnote.
Source: xAI
Key Questions
Who is Katie Miller?
Katie Miller is a White House communications staffer and former member of DOGE, the government cost-cutting initiative. She is married to senior White House adviser Stephen Miller.
What is the allegation in the Washington Post report?
The Post reports that Miller publicly attacked ChatGPT in posts on X without disclosing that she holds a financial stake in xAI, a competing AI company founded by Elon Musk.
Is holding a stake in xAI illegal for a government staffer?
Not necessarily. The issue is disclosure and recusal: federal ethics rules require officials to report financial interests and avoid matters where they have conflicts. Whether Miller complied depends on filing details not fully established in the available reporting.
What is xAI?
xAI is an artificial intelligence company founded by Elon Musk in 2023. Its chatbot, Grok, competes with OpenAI’s ChatGPT.
Has Katie Miller responded to the report?
No response from Miller is confirmed in the available material. It is not yet clear whether she has commented on or disputed the report.
Source: xAI
