Ahrefs Brand Radar is a GEO tool (generative engine optimization), runs against 370M+ monthly prompts for the broadest GEO mention picture.
Brand Radar takes the breadth approach to GEO: a 370M+ prompt index is the differentiator, not depth on a custom prompt set. The trade-off is that the tool stops at the mention and leaves the brief to the analyst.
For agencies and broad-portfolio operators, the breadth and the source-attribution layer are the value. For action-led GEO programs, the absence of a recommendations layer matters.