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What is Google SGE?

Short answer

Google SGE (Search Generative Experience) was the experimental name for Google's AI-generated answer box, launched in 2023. It was renamed to 'AI Overviews' when it graduated from Labs in 2024. The tech is the same; only the branding changed.

SGE launched in Google Search Labs in May 2023 as an opt-in experiment. In May 2024, Google removed the Labs gate and rebranded the feature to AI Overviews, rolling it out to the majority of US English queries first, then expanding globally through 2025.

Under the hood, SGE and AI Overviews use the same retrieval-augmented-generation stack, now powered by Gemini. The changes since launch have been incremental: more accurate citations, better handling of YMYL queries, and a new AI Mode tab launched in 2025 for full-page AI answers.

For SEO, the practical takeaway is that anything published about 'ranking on SGE' from 2023 still applies to AI Overviews today, with one addition — schema density (FAQPage + Article + Speakable) has become a much stronger predictor of citation than it was in the SGE era.

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Frequently asked

Is SGE still available?›

No — SGE was rebranded to AI Overviews in 2024. The Labs opt-in gate is gone; AI Overviews is a default feature.

What's the difference between SGE and AI Overviews?›

Only the name and the general-availability status. The retrieval and generation stack is the same, now on Gemini.

Does old SGE optimisation advice still work?›

Yes. Structural advice (question H2s, direct answers, FAQ schema) still applies to AI Overviews.

Is AI Mode the new SGE?›

AI Mode is an evolution — a dedicated tab where every query gets a full AI answer, not just informational ones.

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