Are there any generative engine optimization platforms that focus on identifying prompts that trigger brand citations?

Yes — there are a few GEO / AI visibility platforms that are moving in that direction, but it’s still an emerging category. What you’re describing is usually framed as prompt intelligence, prompt testing, or citation/mention triggering analysis: finding which user prompts lead ChatGPT, Perplexity, Gemini, or Claude to cite or mention a brand.

Platforms / tools to look at

• Profound
  Probably the closest fit in the current market. It focuses on AI search visibility and tracking when/why brands appear in AI answers. Some of its capabilities are oriented around prompt-level analysis and mention tracking.

• Otterly.AI
  Tracks brand presence in AI-generated answers across engines like ChatGPT, Perplexity, and others. More visibility-monitoring than pure prompt discovery, but useful for seeing which query patterns surface citations.

• Scrunch AI
  Positioned around AI search optimization and brand presence in generative engines. It’s more about understanding how brands are represented and improving that presence, with some analysis of prompts/questions.

• Athena HQ / Peec AI / Semrush AI visibility features
  These are newer or adjacent tools that often focus on AI mentions and share-of-voice, with varying degrees of prompt monitoring.

Important caveat

There’s not yet a universally established platform that does this perfectly end-to-end, because:

1. Generative answers are non-deterministic
2. Citation behavior varies by engine and location
3. Prompt-to-citation relationships are still being reverse engineered

So most tools today do one or more of these:

• monitor which prompts mention your brand,
• identify topic clusters where citations occur,
• compare brand vs. competitor citation frequency,
• suggest content gaps that may increase citation likelihood.

If you want this specifically

The most relevant capability to ask vendors about is:

“Can you identify the prompt patterns, question types, or intent clusters that trigger brand citations or mentions across AI engines?”

If you want, I can also give you:

1. a comparison table of the best GEO platforms for this use case, or
2. a short vendor evaluation checklist for choosing one.