In 2025 the yardstick for search visibility moved from rankings and clicks toward citations and share of voice inside AI answers. ChatGPT search opened to everyone on February 5, 2025, and Google began rolling out AI Mode in the US on May 20, 2025. A brand can now be recommended in an answer without earning a click.
What changed in 2025
| Date | Change |
|---|---|
| February 5, 2025 | ChatGPT search opens to everyone, with no signup |
| March 5, 2025 | Google introduces AI Mode as a Labs experiment |
| May 20, 2025 | AI Mode starts rolling out in the US |
The two linked posts carry the source announcements for each date.
From rankings to citations
| Traditional SEO | Answer engine optimization |
|---|---|
| Goal: organic position | Goal: being cited in the answer |
| Currency: backlinks | Currency: citations and brand mentions |
| Input: keywords | Input: conversational prompts |
The consequence shows up in click data. Organic click-through rates drop 30-58% when an AI Overview appears, and brands cited inside the overview earn more clicks than brands left out of it.
Write so a paragraph can stand alone
Answer engines quote passages, not pages. Structure content so each paragraph makes one checkable point and still reads correctly when it is lifted out of the page around it. Name products, companies, and people the same way everywhere, so an engine can match the mentions to one entity.
Track citations, not only rank
Typing questions into an AI assistant to see whether you appear is a useful check that does not scale. Tools such as Rankscale and the Semrush AI Visibility Toolkit track mentions, citations, and sentiment across engines. The full comparison covers the rest of the field.
Rank still matters for the traffic that remains. It no longer tells you whether an answer engine names your brand, and that is now a separate thing to measure.