Share of Answer: The Metric That Matters in AI Search
QUICK ANSWER
Share of Answer is the percentage of AI answers, across engines and repeated runs, that name your brand for the questions your buyers ask. It’s the clearest way to measure GEO because it tracks being recommended, not just being visible.
Why rankings aren’t enough
A number-one ranking means little if the buyer never sees the results page because an AI answered first. What matters is whether the answer names you. That is what Share of Answer measures.
How is Share of Answer calculated?
A simple version:
- Pick a fixed set of buying questions.
- Ask each one across several AI engines, several times each.
- Count the answers that name you.
- Divide by the total number of answers.
For example, 20 questions × 4 engines × 5 runs gives 400 answers. If 60 name you, your Share of Answer is 15%.
What else should you track alongside it?
- Position: being named first is worth more than being named fourth.
- Accuracy: is the description of your business correct?
- Citations: which sources does AI point to?
- Competitors: who appears when you don’t?
How do you improve it?
Work on the four TUNE levers, then re-measure on the same questions. Consistency in measurement is what makes progress visible. Our Resonance Retainer includes monthly Share of Answer reporting, and our case studies show how the number moves over time.
Key takeaways
- Share of Answer measures how often AI names you.
- Use a fixed question set across engines with repeated runs.
- Track position, accuracy and citations alongside it.
- Re-measure regularly to see what’s working.
Frequently asked questions
What is a good Share of Answer?
It depends on your market. Moving from near zero to being named in a meaningful share of answers is a strong early result.
Why run each question several times?
AI answers vary. Repeated runs smooth out randomness so changes reflect real progress.
Can I measure it myself?
Yes, using the steps above. It’s time-consuming, which is why most teams automate or outsource it.
See what AI says about your business
Get a free AI Mirror: what ChatGPT, Gemini, Claude and Google AI say about you today, and who they name instead.