USE CASE · SHARE OF VOICE

Measure your share of voice in ChatGPT

Updated June 2026 · SwiftAppLab · By the team behind Spotlit

Share of voice is the cleanest way to read AI search: across the ~10 buyer-intent prompts in your category, what percentage of ChatGPT's answers mention you — and how does that compare to each competitor? One mention is a data point; share of voice is the scoreboard. Spotlit computes it for you. Run the category prompt set, see who gets named and how often, and watch your slice of the answer grow or shrink week over week as you do the work. It turns 'are we doing better in AI search?' into a single percentage you can defend.

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% of promptsyou're named in

vs rivalshead-to-head

$29/moStarter plan

Weekly+tracking cadence

Why Spotlit for share-of-voice tracking

Your slice of the answer, as a number

Spotlit runs the category's buyer-intent prompts and counts how many name you versus each competitor. The result is a share-of-voice percentage — 'you appear in 40% of category answers, your top rival in 70%' — that's instantly legible to a CMO or a client and far more honest than a single anecdotal mention.

Benchmarked against the real competitive set

Share of voice is only meaningful relative to rivals. Spotlit names the 3-5 brands ChatGPT actually recommends in your category — often not the list you'd guess — and shows your share against theirs, so you know whether you're closing the gap or falling behind.

A trend line, not a one-off

Re-checks on your plan's cadence (weekly on Starter through daily on Agency) build a share-of-voice trend. Watch the line move the week after a big listicle placement lands or a competitor's PR push hits. That trajectory is what makes the metric worth reporting.

Sample prompts Spotlit runs for share-of-voice tracking

What percentage of ChatGPT answers mention my brand?
How does my share of voice compare to competitors in ChatGPT?
Which competitor has the highest ChatGPT share of voice?
Track my AI search share of voice over time
How often does ChatGPT name us versus the market leader?

ROI math

Share of voice is the metric marketing leaders already understand from PR and paid media — applied to AI search. Having it as a defensible number is what turns GEO from a hunch into a line item: you can show the percentage moving and tie it to the work that moved it.

Spotlit is ChatGPT-only and focused. It computes your share of voice in ChatGPT specifically and points at the sources to target — it doesn't run multi-engine dashboards or do the outreach for you. If ChatGPT is the assistant you care about, that focus is the feature.

Frequently asked questions

How is share of voice calculated?

Across the buyer-intent prompt set for your category, Spotlit counts the share of answers that mention your brand and compares it to each competitor's share. The bigger and more representative your prompt set, the more stable the percentage — Pro and Agency tiers track larger sets.

How is this different from just tracking mentions?

Mention tracking tells you whether you showed up; share of voice tells you how you stack up. It's relative — a 40% share means something very different when the leader sits at 45% versus 90%. See the track-brand-mentions use case for the absolute-count view.

How often is share of voice updated?

On your plan's cadence — weekly on Starter ($29), every three days on Pro ($79), daily on Agency tiers. You can slow any brand down from the dashboard; you can only speed it up within your plan's cap.

Does it measure share of voice across other AI engines?

No — Spotlit is ChatGPT-only. The share-of-voice figure is specifically your slice of ChatGPT's answers. For a multi-engine view you'd need a broader, pricier platform alongside it.

Can agencies report this per client?

Yes — on Agency ($199, 10 brands) and Agency Plus ($299, 25 brands) each client gets its own share-of-voice figure and trend. See the client-reporting use case for packaging it into a deck.

Try a free ChatGPT check

Run your category's prompt set and see your share of voice in ChatGPT — what percentage of answers name you versus each competitor — in under 60 seconds. Free first check.

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