For chief marketing officers

The CEO memo: why brand decides whether AI names a company.

Customers now ask AI assistants which brands to buy. In the Vanish Test, an AI assistant asked three times for the leading brands in each category did not name Nokia, Merrill Lynch, Nissan, Armani and Nivea, all on Interbrand's 2006 list of the world's most valuable brands. Meanwhile the role responsible for brand turns over quickly: The average tenure among CMOs in the S&P 500 is just 4.1 years, compared to 5.0 years for all C-suite roles at those companies. (Only COOs were shorter, at 3.3 years on average, likely because COOs are often the role for CEO aspirants.) (Spencer Stuart).

The memo below explains the change to a chief executive in one page, using the Marketing Helix. Copy it, put your company's name on it, and send it.

To: CEO
From: CMO
Re: Why brand decides whether AI names us

1. What changed. Customers now ask AI assistants which brands to buy, and an assistant names a few and skips the rest. In the Vanish Test, published by Elevate or Vanish on November 1, 2026, an AI assistant was asked three times for the leading brands in the categories of Interbrand's 2006 Best Global Brands. It did not name Nokia, Merrill Lynch, Nissan, Armani and Nivea in their own categories in any of the three asks. They were among the most valuable brands in the world twenty years ago.

2. Why it happens. The Marketing Helix describes a customer already in motion, who notices a message only when trust, relevance and timing line up. Three of its principles explain the gap: "Being there is not being noticed." "Trust is the first test." "Trust can compound or decay."

3. What it means for us. Spending can put us in front of customers; it does not decide whether we are chosen. As the Helix puts it, "Paid media buys distribution, not the decision." What an assistant repeats about a category tends to follow the trust a brand has built over time, and that trust compounds or decays whether or not we measure it.

4. What I am asking for. First, measure it: each quarter, ask the leading AI assistants for the best brands in our category and record whether we are named. Second, treat brand as the asset that answer reflects, with an owner and a budget, so that trust compounds instead of decays.

Sources: The Vanish Test, elevateorvanish.com/vanish-test/. The Marketing Helix principles, marketinghelix.com/principles/.

Copy the memo

The principles behind it

Each line the memo quotes is one of the sixteen Marketing Helix principles, written as conditions rather than laws: what tends to happen, and under what circumstances. The memo uses four: being there is not being noticed; trust is the first test; trust can compound or decay; paid media buys distribution, not the decision.

The Vanish Test is one AI assistant on one day, asked three times, with every run kept and the method published on Elevate or Vanish. It is a signal to measure, not a verdict on any brand.