Ahrefs explains how to calculate AI share of voice with Brand Radar
Ahrefs outlines a method for measuring AI share of voice (AI SOV), the proportion of AI‑generated responses that mention a brand compared with tracked competitors. The metric is calculated by dividing the number of responses that cite a brand by the total responses that cite any tracked brand, then weighting each prompt by its AI‑adjusted volume – the monthly Google search volume multiplied by a…
What you can do with it
AI at Work →Track brand visibility with Brand Radar
Calculates AI share of voice using estimated impressions per platform.
- Who for
- marketers
- Cost
- Price not stated
- Effort
- minutes
Use it for
- Track brand visibility
- Compare competitor mentions
- Guide content creation
Watch out Results vary with chosen prompts, platforms and competitors
Ahrefs Brand Radar in the tool directory · 3 changes covered
Key points from the news
- Ahrefs' Brand Radar calculates AI SOV using AI‑adjusted volume, weighting prompts by monthly search volume and platform ratios (ChatGPT 0.115, Gemini 0.011, Perplexity 0.01).
- A 20,000‑search keyword translates to 2,300 estimated impressions on ChatGPT and 220 on Gemini, shaping brand share percentages.
- Brand Radar provides an immediate broad‑index view and custom tracked prompts, with each check equal to one prompt‑assistant‑location execution.
The guide shows how Brand Radar can generate AI SOV scores instantly from a broad index of pre‑collected AI responses or from custom‑tracked prompts that collect data over time. Each check equals one prompt execution on a chosen AI assistant in a specific location. Marketers can filter by platform, view underlying responses, and save reports for consistent, reproducible comparisons. The article stresses that AI SOV reflects visibility, not outcomes, and that changes in prompts, competitors, or platforms can alter percentages, so trends should be interpreted carefully.
The story so far
10 episodes →- Ahrefs explains how to calculate AI share of voice with Brand Radarthis story
AI Share of Voice: What It Is, How to Measure It, and What It Actually Tells You
Ahrefs Blog · 22 October 2026
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This text was published by Ahrefs Blog and written by Si Quan Ong. It is reproduced here with attribution so you can read it in full; the rights remain with the publisher. Read it at the source ↗
The headline, key points and digest above were generated by Digest AI's editorial model from the linked sources. Automated summaries can contain errors: the sources are the record. Spotted a mistake? Tell us. Published by Martin K., who runs Digest AI and handles corrections.
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