Which AI engines does the AI Visibility Score test?
Each scan queries four engines independently: live production models from OpenAI (the family behind ChatGPT), Google (the Gemini family), and DeepSeek, plus a web-grounded AI search leg that retrieves live web results and synthesizes an answer from them, the way Perplexity and Google AI Overviews work.
How is the overall score calculated?
Every query and engine pair is one scored sample. A sample scores zero if your brand is not mentioned; otherwise it combines five weighted signals: mention (40%), position (20%), citation strength (20%), sentiment (10%), and source authority (10%). The overall 0 to 100 score is the average across all samples, which rewards brands that are visible consistently across engines.
How do you prevent hallucinated results?
Two layers. The extraction step is instructed to only count brand names that literally appear in the answer text, and then code independently re-verifies each claimed mention against the raw answer. A mention that cannot be found verbatim in the text is discarded. Each counted mention also ships with the exact excerpt as evidence.
What is share of voice and how is it measured?
Every brand named in every AI answer is extracted and tallied. Your share of voice is your mentions divided by all brand mentions across the full scan. The same tally produces your competitor table: the brands AI engines recommend in your space, ranked by how often they appear.
Why do results differ from what ChatGPT tells me?
Consumer assistants mix model knowledge with browsing, memory, and your chat history. We test the underlying model families in a controlled, repeatable way: same question, no personalization, no session context. That makes scores comparable across brands and across time, which is what you need to measure progress.
How often is a report refreshed?
Reports are cached for 24 hours per brand and website, so repeat checks within a day return the same report. AI models and web sources shift gradually, so we recommend re-running your score monthly, or after major content launches and PR coverage.
Is the AI Visibility Score Checker free?
Yes. Every scan is free, with no email gate and no signup required. It is part of the GrowthGPT suite of free AI marketing tools.
What is a good AI visibility score?
Most established brands land between 16 and 55 (Emerging or Visible) on their first scan. Above 55 (Prominent) means AI engines frequently recommend you. Scores above 75 (Leader) are rare and usually belong to category-defining brands. A score below 16 means AI engines effectively do not know your brand exists.