What is generative engine optimization (GEO)?

Updated July 2026 · Reviewed against current engine behaviour

The distinction matters because buyers increasingly never see a list of links. They ask a question, get one synthesized answer, and act on it. If your brand is in that answer, you exist. If a competitor is, you don't. GEO is the work of changing which of those two happens.

How do AI engines choose what to cite?

AI engines answer questions by retrieving a small set of trusted sources and synthesizing them. Which sources get retrieved is not the same as which pages rank in Google: only about 12% of URLs cited by AI engines appear in Google's top 10 for the same prompt^[1].

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Engines lean heavily on places where humans compare things in public. Reddit is the most-cited domain across major engines^[2], followed by review platforms, Wikipedia, YouTube and established trade press.

Position within a page matters too. Roughly 44% of ChatGPT citations come from the first third of a page's content^[3] — engines reward direct answers stated early, not conclusions buried under narrative.

And the citation pool is wide. Even the most-cited domain rarely exceeds 5% of total citations, meaning roughly 95% go to the long tail of ordinary pages^[4]. A mid-sized brand can genuinely compete here in a way it cannot in classic search.

What does GEO work actually involve?

GEO has three layers, and honest practitioners do all three:

What GEO is not: seeding fake reviews, botting Reddit threads, or prompt-injecting pages. Reddit now uses LLM-based detection against exactly that behaviour and removes it retroactively^[5] — and a removed citation is worse than none, because the removal is a trust signal engines can read. We wrote up what survives and what doesn't at Reddit in 2026.

How is AI visibility measured?

The standard metric is share of voice in AI answers: out of the answers engines give to a defined set of buyer prompts, the percentage that mention your brand versus competitors.

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In practice, you build a prompt set from questions your buyers actually ask, run it across ChatGPT, Perplexity, Gemini, Google AI Mode and AI Overviews on a schedule, and record three things per answer: was the brand mentioned, was it recommended, and which pages were cited.

Rankings don't appear anywhere in that sentence — that's deliberate. There is no position #3 in a paragraph.

How long does GEO take?

Six to ten weeks before measurable movement, usually. Engines re-crawl and re-weigh sources on their own schedules, and earned placements need to age into the sources engines trust.

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Anyone promising AI visibility in days is selling you either something dishonest or something invisible. The three-month minimum on our plans exists because of this physics, not because we like lock-ins.

How much does GEO cost?

In 2026, credible agency retainers run roughly €2,000–5,000+ per month depending on scope: monitoring only at the low end, monitoring plus earned placements in the middle, full management at the top. Redaccel scopes each engagement to your category after a free audit — see Pricing for the plans and what drives the number. In-house is possible too; we lay out that comparison honestly on the same page.

Frequently asked

Sources

1. Ahrefs, “Only 12% of AI Cited URLs Rank in Google's Top 10 for the Original Prompt”.
2. Semrush, “The Most-Cited Domains in AI: A 3-Month Study”; Statista, 2026.
3. Search Engine Land, “44% of ChatGPT citations come from the first third of content”.
4. Evertune, analysis of 200 million prompts, 2026.
5. TechCrunch, “Reddit is using LLMs to solve a problem LLMs largely created”, July 6, 2026.