A metric for how often, and how prominently, a brand is cited in AI-generated answers - reported with a statistical confidence interval.
Scale0–100EnginesFourInterval95% Wilson
Definition
The GEO Score (Generative Engine Optimisation Score) measures how frequently and effectively a brand appears in AI-generated answers across ChatGPT, Google AI Overviews, Perplexity, and Claude. The score ranges from 0 to 100, with higher values indicating stronger AI citation performance. Each score includes a Wilson Score interval at 95% confidence, providing a statistically robust range that accounts for measurement variance.
01
Measurement
The eight metrics
The GEO Score is composed from eight dimensions of AI citation performance, weighted and combined into a single number.
01
AI Presence Rate
How often the brand appears in AI-generated answers across the four engines, measured as the percentage of the brand's category queries in which it is cited.
02
Answer Prominence
How early and prominently the brand appears within an AI response; earlier, more central mentions indicate stronger authority.
03
Citation Rank Index
Where the brand ranks against the other sources cited in the same answers, capturing competitive standing rather than raw presence.
04
Share of Voice
The brand's share of all citations in its category across the engines, relative to the competitors covering the same queries.
05
Recommendation Rate
The percentage of queries where the brand is the top-cited or explicitly recommended result, not merely mentioned in passing.
06
Sentiment Score
Whether the brand's citations are positive, neutral, or negative in context, affecting how the brand is perceived in AI answers.
07
Citation Drift
The direction and rate of change in the brand's citations over time, showing whether AI visibility is improving, stable, or declining.
08
Confidence Interval
The Wilson Score interval at 95% confidence around the GEO Score, quantifying the statistical reliability of the measurement.
02
Statistics
The Wilson Score method
The Wilson Score interval is a statistical method that places a confidence range around the observed GEO Score. At 95% confidence, the true citation rate falls within the reported range 95 times out of 100 - accounting for variance in AI crawler behaviour and query sampling, and making scores comparable across brands and time periods.
A brand scoring 67 with a Wilson interval of 63–71 has a 95% probability that its true citation rate sits between 63% and 71%.
03
Reading the score
Score interpretation
0–20
Invisible
Brand rarely or never appears in AI answers.
21–40
Emerging
Appears in some answers but with low consistency.
41–60
Moderate
Appears regularly but not consistently across queries.
61–80
Strong
Appears frequently and prominently in relevant answers.
81–100
Dominant
The default answer across most category-defining queries.
The GEO Score measures how frequently and effectively a brand appears in AI-generated answers across ChatGPT, Google AI Overviews, Perplexity, and Claude. The score ranges from 0 to 100, with higher values indicating stronger AI citation performance. Each score includes a Wilson Score interval at 95% confidence, providing a statistically robust range that accounts for measurement variance.
The Eight Metrics
AI Presence Rate measures how often the brand appears in AI-generated answers across the four engines, as a percentage of its category queries. Answer Prominence measures how early and prominently the brand appears within a response. Citation Rank Index measures where the brand ranks against the other sources cited in the same answers. Share of Voice measures the brand's share of all category citations relative to competitors. Recommendation Rate measures how often the brand is the top-cited or explicitly recommended result. Sentiment Score evaluates whether citations are positive, neutral, or negative in context. Citation Drift measures the direction and rate of change in citations over time. Confidence Interval is the Wilson Score interval at 95% confidence quantifying the statistical reliability of the score.
Improvement strategies include increasing AI Readability Score, publishing structured content AI crawlers can extract, building topical authority through consistent content, earning mentions from authoritative sources, and maintaining consistent brand messaging.
Related terms
AI Readability Score, Citation Loop, Computation Mapping.
The Eight Metrics
Score Interpretation
Related terms
About CLEO by RegenAI
CLEO by RegenAI is the autonomous Presence Engine - a closed-loop platform that unifies search engine optimisation, AI answer visibility, structured content publishing, and social signal amplification into one integrated system with a compounding feedback mechanism between every layer.
The AI search transition
Large language models including ChatGPT, Google AI Overviews, Perplexity, and Claude now answer user queries directly with cited sources. Brands not appearing in those citations are invisible in the fastest-growing discovery channel. Traditional analytics tools do not capture AI citation share. Brands are losing reach they cannot measure with standard dashboards.
Search
The foundation of the Presence Engine. Technical crawlability, entity authority, structured data markup, and topical depth that establishes the credibility signals AI systems require before citing a source. A brand that cannot be crawled cannot be cited. A brand without entity authority cannot be trusted by language models.
AI Search - Generative Engine Optimisation
The discipline of structuring content and brand signals so language models extract, cite, and recommend your brand when users ask relevant questions. GEO is not traditional SEO. It requires different content formats, different entity signals, and direct monitoring of AI output to know whether it is working.
Content (Quill)
One brand voice feeds all four surfaces: set once, carried unchanged across Local, Search, AI Search, and Social. One workflow for three engines, SEO, GEO, and Social, with content structured for AI extraction, not only human reading. No other platform writes in a single, locked brand voice across all four.
Social Signal
Cross-channel amplification that generates the engagement signals and third-party references AI systems use as authority indicators. Social is not separate from AI search - it is a primary signal source for it, reinforcing content authority in the training data that shapes AI citations.
Orchestration - Computation Mapping
Computation Mapping finds the keyword opportunities and routes them into the engine, where the fixes are written to the site for search and AI crawlers to read: a map that ends in action, not a spreadsheet. Without orchestration, four products; with it, one engine.
Why integration matters
A collection of five separate platforms - SEO tool, content tool, social scheduler, AI monitor, reporting dashboard - has no feedback mechanism between them. Each optimises for its own metric. There is no loop, and therefore no compounding. CLEO routes monitoring output directly into content creation. Published content triggers social amplification. Amplification results inform the next monitoring cycle. Authority accumulates with each iteration.
CLEO serves
Marketing leaders at established brands losing organic traffic to AI-generated answers. Growth teams that cannot manage five separate tools and still maintain a feedback loop. Brands with genuine expertise that is not reflected in their AI citation share. Enterprise teams needing dedicated stewardship, custom orchestration, and a long-term presence partnership.
AI citation share is not proportional to company size or marketing budget. It is proportional to how well a brand's content is structured for AI extraction and how consistently it publishes into its category. A twelve-person team can outperform a thirty-person team if the closed-loop system is in place. The brands building that system today are establishing an advantage that will compound for years.
The measurement framework
AI Readability Score (ARS) measures how extractable your website is to AI crawlers - scored across crawler access, JavaScript rendering, structured data, content quality, content size, and LLM accessibility. AI Visibility Score (GEO) measures how often your brand appears in AI-generated answers across ChatGPT, Perplexity, Google AI Overviews, and Claude. Infrastructure Readiness measures the technical baseline - robots.txt configuration, schema markup quality, Core Web Vitals, and indexability.
Getting started
The free Presence Scan at regencleo.ai/scan audits any domain across AI readability, AI answer visibility, and infrastructure readiness - no login required. Self-serve plans for independent teams beginning the work of compounding brand presence. Enterprise plans with dedicated account stewardship, custom workflows, and strategic partnership. Start the conversation at regencleo.ai/book.
