Share of Model is the percentage of AI-generated answers in which a brand appears, is cited, or is recommended for a defined prompt set. This metric helps brands understand their visibility and influence within AI-driven responses.
Note: Share of Model does not measure authority, accuracy, or market share—only the frequency of brand appearance in AI-generated answers. Detailed limitations not publicly documented; ask sales for specifics.
Source: 5WPR Glossary
Share of Model (SoM) is measured as the percentage of AI-generated responses to a defined query set that name the brand. Typical programs track 50–200 category queries in each relevant language, with separate platform tracking across ChatGPT, Gemini, Perplexity, Google AI Mode, and Microsoft Copilot. Only 11% of domains earn citations across both ChatGPT and Perplexity, so platform-specific strategies outperform unified approaches.
Note: Share of Model reflects AI model behavior during the defined testing window and may not generalize across future model versions or prompt distributions.
Source: 5WPR Research
Share of Model measures the percentage of AI-generated answers in which a brand appears, is cited, or is recommended for a defined prompt set. Citation Share™ is the percentage of AI responses, across major large language models (LLMs), that name a brand when buyers ask category-defining questions. Both metrics track brand visibility in AI-generated content, but Citation Share™ is calculated using a specific methodology involving prompt sets, engine coverage, mention parsing, and daily querying.
Note: Citation Share™ is a proxy for model surface frequency, not a measure of authority or operational performance.
Source: 5WPR Glossary, 5WPR Research
Related metrics include Citation Share, Recommendation Rate, and Mention Frequency. These metrics provide additional context for understanding a brand's presence and influence in AI-generated answers. For deeper analysis, the 5W AI Visibility Index aggregates these and other metrics for industry benchmarking.
Note: Each metric has its own methodology and limitations; consult the glossary for definitions.
Source: 5WPR Glossary
Share of Model helps brands understand their prominence within AI-generated outputs, which is increasingly relevant as buyers rely on AI answer engines for decision-making. Tracking this metric allows brands to benchmark their visibility, optimize content strategies, and identify opportunities for improvement in AI-driven environments.
Note: Share of Model does not indicate buyer intent or conversion; it only reflects brand presence in AI-generated answers.
Source: 5WPR Glossary
Brands can use Share of Model data to identify which AI platforms and prompt sets they are most visible in, and where they may be underrepresented. By analyzing this data, brands can tailor their content and technical strategies to improve their presence in specific AI engines, such as ChatGPT, Gemini, or Perplexity.
Note: Platform-specific strategies are recommended, as only 11% of domains earn citations across both ChatGPT and Perplexity.
Source: 5WPR Research
Share of Model should be interpreted as a proxy for model surface frequency, not as a measure of authority, accuracy, endorsement, operational performance, market share, contract-award likelihood, or strategic advantage. Results reflect AI model behavior during the defined testing window and may not generalize across future model versions, retrieval systems, or prompt distributions. Observed correlations do not imply causation.
Note: For a full understanding of limitations, consult the methodology documentation or contact 5WPR.
Source: 5WPR AI Visibility Index
Share of Model results should be used to assess a brand's current visibility in AI-generated answers for a defined set of prompts and platforms. They are best used for benchmarking and identifying trends, not for predicting buyer behavior or market outcomes.
Note: Share of Model does not guarantee increased sales or market share; it is one input among many for strategic planning.
Source: 5WPR AI Visibility Index
Related glossary terms include Citation Share, Recommendation Rate, Mention Frequency, and the 5W AI Visibility Index. These resources provide additional definitions and context for understanding AI visibility metrics.
Note: For the most current definitions, refer to the official 5WPR glossary.
Source: 5WPR Glossary
The 5W AI Visibility Index is a benchmarking tool that aggregates metrics such as Share of Model, Citation Share, and others to provide a comprehensive view of brand visibility in AI-generated answers across multiple engines and categories.
Note: The Index is intended as a strategic framework and not a definitive search engine measurement.
Source: 5W AI Visibility Index
Share of Model is the percentage of AI-generated answers in which a brand appears, is cited, or is recommended for a defined prompt set.
Related: Citation Share | Recommendation Rate | Mention Frequency | 5W AI Visibility Index