Can one AI answer prove a firm is “in” AI search?

No. Answers vary from run to run, so the Standard samples each prompt at least five times a month per engine and location and reports a rate with an interval.

When does the Standard say the rate moved?

Only when two periods’ 90% intervals don’t overlap.

Do AI visibility scores count as results?

Not without intervals. Scores without them appear only in labeled diagnostic sections, never in headlines.

The Probative Standard · v1.0 · §Forecast and AI-answer metrics

AI mention rate: measuring AI answers honestly

Updated October 24, 2026 · CC BY-ND 4.0

Definition

The share of sampled AI answers that name a law firm, measured on a fixed prompt panel, at least five runs a month, with 90% Wilson intervals.

The Probative Standard v1.0, §Forecast and AI-answer metrics.

AI mention rate is the share of sampled AI answers that name the firm, by engine, practice area, city and language, reported with a 90% interval. AI answers change from run to run, so one answer proves nothing; a rate over a fixed prompt panel can.

How it’s measured

Mention rate = answers that name the firm ÷ answers sampled, by engine, practice area, city and language.
Sampling. Each prompt runs at least five times a month per engine and location, in English and Spanish where the firm serves both.
Intervals. Rates carry 90% Wilson intervals (method). We claim movement only when two periods’ intervals don’t overlap.
Share of AI voice uses the same sample, measured against a fixed list of competitors named in advance.

What it isn’t

Not a promise. We never promise that an AI assistant will name a firm.
Not a headline on its own. AI “visibility scores” without intervals appear only in diagnostic sections. The headline is still signed cases.
Not attribution. Visits referred by AI assistants are their own channel line under the attribution rules; a mention rate says how often the firm is named, not how many cases it produced.

Why it matters

People increasingly ask AI assistants which lawyer to call. Whether a firm is named is worth measuring, but only with the same discipline as every other number: a fixed sample, repeated runs, an interval, and a clear line between being named and signing a case.

Cite as: The Probative Standard v1.0, AI mention rate. Last reviewed October 24, 2026, by the Probative editorial team.

Questions firms ask

Can one AI answer prove a firm is “in” AI search?: No. Answers vary from run to run, so the Standard samples each prompt at least five times a month per engine and location and reports a rate with an interval.
When does the Standard say the rate moved?: Only when two periods’ 90% intervals don’t overlap.
Do AI visibility scores count as results?: Not without intervals. Scores without them appear only in labeled diagnostic sections, never in headlines.

Sources

Wilson score interval · Accessed October 24, 2026

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