Why do AI answers change from one day to the next?

AI responses vary with wording, location and model updates. That's why you track a fixed set of questions over time rather than one answer.

Is AI share of voice a replacement for rankings?

No. Track both: rankings for search, share of voice for AI answers.

AI search and AEO

AI share of voice

Also called AI visibility

AI share of voice is how often your brand is named in AI assistants' answers to the questions that matter in your category, compared with your competitors.

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How to measure it

Write 10 to 30 questions your buyers ask, such as "best tool for X".
Ask each one in ChatGPT, Perplexity, Gemini and Google AI Mode every month.
Record which brands are named, in what order and how they are described.
Your share is the percentage of answers that name you.

How to grow it

Look at the sources the answers cite. Those reviews, comparisons and articles are where you need to appear. Combine that outreach with answer-first pages on your own site.

Frequently asked questions

AI responses vary with wording, location and model updates. That's why you track a fixed set of questions over time rather than one answer.
No. Track both: rankings for search, share of voice for AI answers.

Put it into practiceAnswer engine optimization See where you standFree growth audit

Go deeper: the complete guideAI Search Optimization: The Complete Playbook for SaaS