One of our researchers got a puppy this spring. Being the sort of person who instruments everything, she logged every purchase decision the household made for the first two weeks. The result was the cleanest illustration of modern buying behavior we have seen: fourteen days, dozens of decisions, and almost every one of them shaped by a conversation with an AI assistant before any search engine, store, or brand website entered the picture.
The 14-day window
A new puppy triggers a cascade: food, crate, vet, insurance, training, toys, cleaning products, fencing quotes. What struck us was not the volume. It was the choreography. Each decision followed the same three steps. First, describe the situation to an assistant: "8-week-old golden retriever, apartment, we both work, what do we actually need?" Second, receive a plan with specific product and service recommendations embedded in it. Third, buy roughly what was recommended, with only quick price checks in between.
Fourteen days after the puppy arrived, the household's vendor set was essentially locked: the food brand, the insurer, the vet, the trainer, the crate. Brands that were not present in those AI conversations never got considered. There was no research phase for them to interrupt with ads, because the research phase happened inside a chat window in about ninety seconds per decision.
Why life moments compress the funnel
Life moments like a new pet, a move, a diagnosis, or a first hire share three properties that make them decisive for brands. They are urgent, so buyers accept the first credible plan. They are bundled, so one conversation allocates spending across many categories at once. And they are emotional, so trust transfers: if the assistant's crate advice worked, its insurance suggestion gets taken too.
This is why we build our entire measurement approach around moments rather than keywords. Our study of 1,200 moments found that most already have a default recommended brand. The puppy diary shows what that looks like from the buyer's side: defaults being accepted, in bulk, on a deadline.
What the choreography means for brands
- The consideration window is days, not months. If your category attaches to a life moment, the decision often closes before traditional marketing touches the buyer.
- Adjacent categories decide together. The assistant recommends the food, the insurer, and the trainer in one plan. Your competition for attention includes every other category in the bundle.
- First mention wins disproportionately. Recommendations made on day one survived the whole window. Nothing that appeared later dislodged them.
- Price checking is not reconsideration. Buyers verified prices on retail sites but did not reopen the brand question. The AI conversation was the decision.
Mapping your category's buying choreography
Every category has its version of the puppy window: the two weeks after a funding round, the month before a move, the days after a diagnosis. The work is to identify the moments that trigger your category, script the conversations buyers actually have across ChatGPT, Gemini, Claude, and Perplexity, and measure whether you are in the plan. If you are not, the citations and sources behind those answers tell you exactly where to intervene.
We run this analysis for brands across dozens of industries. If you want to see the choreography of your own category, book a demo and bring your best guess about where buyers decide. The data usually surprises people.
Frequently asked questions
What is an AI buying journey?
It is the path a buyer takes when AI assistants, rather than search engines and comparison shopping, structure the decision. It typically compresses awareness, consideration, and selection into one or two conversations.
How do life moments affect purchase decisions?
Life moments bundle many purchases into a short, urgent window. Buyers describe the situation to an assistant once and accept recommendations across multiple categories at the same time, which makes presence in that single conversation extraordinarily valuable.
Can brands influence AI recommendations during these windows?
Not in the moment itself, which is why preparation matters. Presence is earned in advance through the reviews, comparisons, and authoritative content assistants draw on when composing their plans.