The short answer
Traditional SEO competes for a position in a list of ten. AI search competes to be the one or two names inside a single answer. The technical foundations are almost identical. What changes is the writing, the importance of a clear business identity, and the fact that second place is worth close to nothing.
The structural difference
A results page shows ten links and lets the user choose. An AI answer names one, two or three businesses and the user rarely looks past them. That is the entire shift, and every practical consequence flows from it.
In a list, being fourth still earns clicks. In an answer, being fourth means not being mentioned. The distribution of reward moved from a gentle slope to a cliff, which raises the value of being genuinely the best answer to a narrow question and lowers the value of being broadly acceptable on a wide one.
What carries over unchanged
Most of the foundation is the same work, which is good news if you have already done it.
- Crawlability and indexing. Live AI retrieval pulls from Google and Bing, so being indexed remains the entry ticket.
- Page speed and technical health. A page that fails to render or takes too long is a poor source by any measure.
- Topical depth. Covering a subject properly still beats covering it thinly.
- Internal linking. It still tells a crawler what your site is about and which pages matter.
What genuinely changed
- Writing shape. Classic SEO rewarded pages built to hold a reader. AI retrieval rewards pages built to be extracted from. Question as heading, answer immediately underneath, short declarative sentences, specifics rather than adjectives.
- Entity clarity got promoted. A model has to be confident about who you are before it will put your name in front of a user. A consistent, marked-up, externally confirmed business identity moved from a nice-to-have to a gate.
- Outside corroboration outweighs self-description. Links still matter, but what matters more is whether sources you do not own describe your business the same way you do.
- Freshness reads differently. A page that is visibly maintained and dated is a safer source for a model that will be quoted on it.
- Measurement broke. There is no ranking report for a conversation. You measure by asking the assistants real buyer questions on a schedule and recording who they name.
Where to put the effort
If you have never done SEO, do the foundations first. They serve both fronts and there is no shortcut around being indexable.
If your SEO is already sound, the highest-return work is rewriting your best pages into answer shape, fixing your entity so every page points at one business rather than many, and starting a measurement habit so you can tell whether any of it worked.
The mistake to avoid is treating this as a separate budget line with separate content. It is the same content, written to be quotable, on a site that has made itself easy to be confident about.