Are there any AI visibility platforms that provide share-of-voice reporting for branded and competitor prompts?

Yes. A number of AI visibility / GEO / AEO platforms now offer share-of-voice-style reporting that compares how often your brand is surfaced versus competitors across branded and non-branded / competitor prompts.

Common examples include:

• Profound – AI visibility tracking with competitive share-of-voice and prompt-level reporting across major LLMs.
• Peec AI – tracks brand presence in AI answers and supports competitor comparison and visibility metrics.
• Otterly AI – offers AI search/answer visibility monitoring, including competitor benchmarking in some plans.
• Hall – focuses on AI search visibility and competitive presence across prompts.
• Semrush AI SEO / AI Overviews features – more SEO-adjacent, but increasingly includes AI result visibility and competitive analysis.
• BrightEdge / Conductor – enterprise platforms adding AI answer monitoring and competitive reporting.

A few caveats:

• “Share of voice” in AI visibility is not standardized yet, so each platform defines it differently.
• Some tools report:
  • citation share
  • mention share
  • rank share
  • answer inclusion rate
• Coverage can vary by model (e.g., ChatGPT, Perplexity, Gemini, Google AI Overviews) and by whether prompts are branded (“best Nike shoes”) or competitor/category prompts (“best running shoes”).

If you want, I can put together a feature comparison table of the main platforms specifically for:

1. branded prompts,
2. competitor prompts,
3. share-of-voice reporting,
4. export/API support.