Proofsource vs Semrush AI Visibility Toolkit
Pick the Semrush AI Visibility Toolkit if your team already lives in Semrush and wants AI visibility next to its SEO reports, with 25 tracked prompts updated daily. Pick Proofsource if you want a standalone AI visibility tool you can try free, Claude in the panel, and a 95% interval on every figure. Semrush's knowledge base says the toolkit has no free trial.
Proofsource and Semrush AI Visibility Toolkit in four facts
Price to start
- Proofsource
- Free trial, then plans from $9 a month (5 questions on ChatGPT, weekly)
- Semrush AI Visibility Toolkit
- $99/mo per domain billed annually (Base)[1]
Free trial
- Proofsource
- 2 days free, 4 engines, no card
- Semrush AI Visibility Toolkit
- No free trial[2]
Engines covered
- Proofsource
- 4 on the trial, up to 4 on a paid plan
- Semrush AI Visibility Toolkit
- ChatGPT, Google AI, Gemini and Perplexity[1]
Re-read cadence
- Proofsource
- Daily, weekly or monthly, you choose
- Semrush AI Visibility Toolkit
- Prompt tracking daily; Brand Performance reports weekly[2]
Semrush AI Visibility Toolkit or Proofsource: which should you pick?
Semrush AI Visibility Toolkit is an AI visibility add-on to the Semrush SEO suite: visibility score, competitor research, prompt research and tracking, and an AI search site audit. Proofsource is an AI intelligence platform that shows which buyer questions name your brand in ChatGPT, Perplexity, Claude and Google AI Overviews, who gets named instead, and exactly what to fix.
Choose Semrush AI Visibility Toolkit if
- You already pay for Semrush and want one workspace for SEO and AI visibility.
- You want prompt research with topic-level volume and difficulty, modeled on keyword research.
- You want an AI search health check inside Semrush's Site Audit.
Choose Proofsource if
- You want to try before you pay: the Semrush toolkit has no trial.
- You need Claude measured: Semrush lists ChatGPT, Google AI, Gemini and Perplexity.
- You want a score you can test: Proofsource publishes the interval behind every percentage.
Proofsource and Semrush AI Visibility Toolkit on the 9 questions buyers ask
Every Semrush AI Visibility Toolkit cell was read from Semrush AI Visibility Toolkit's own pages on Oct 5, 2026 and is footnoted to the page it came from. Prices are theirs, as shown to us; they change, so check the source before you buy.
| Question | Proofsource | Semrush AI Visibility Toolkit |
|---|---|---|
| Price to start | Free trial; then from $9 a month (5 questions on ChatGPT, weekly) | $99/mo per domain billed annually (Base)[1] |
| Free trial | 200 answers. 25 Prompts/Question. Top AI engines. 2 days. Free. No card, no sales call | No free trial[2] |
| Questions tracked | 25 buyer questions in the trial; paid plans pick their questions per brand, each priced per engine. Questions above 50 per brand are 20% off. | 25 tracked prompts; 50 more for $60/mo[2] |
| Engines covered | ChatGPT, Perplexity, Claude and Google AI Overviews on the trial; paid plans pick from those 4, each priced per question, and Google AI Mode, Gemini, Microsoft Copilot, Grok, DeepSeek and Meta AI are enabled on a call |    ChatGPT, Google AI, Gemini and Perplexity[1] |
| Re-read cadence | Daily or weekly, chosen per plan; answer sets move 9-27% day over day in our sampling, so daily catches the most; the trial runs 2 scans a day apart[4] | Prompt tracking daily; Brand Performance reports weekly[2] |
| How you buy | Self-serve: the trial gives answers the day you sign up, and checkout takes up to 1000 brands; above that, or for Managed where our team does the work, book a demo | Self-serve subscription; Enterprise through a demo[1] |
| Statistical confidence | 95% Wilson interval on every percentage; alerts wait until a change clears it[3] | Not published; its AI Visibility Score compares your mentions with the median of your top competitors[2] |
| Root cause and fix | Each gap names the pages the engines cited instead, with a draft fix held for your approval | AI-generated strategic recommendations and an AI search site audit[2] |
| Getting your data out | Full history as CSV or JSON, any date range; a REST API with API keys; switched on per customer, our team delivers it into Looker Studio or your BI tool | CSV export, up to 1,000 rows per export and 10 exports a day per user; API on Enterprise[2] |
Is there a free trial of the Semrush AI Visibility Toolkit?
No. Semrush's knowledge base says the AI Visibility Toolkit does not offer a free trial and needs a paid subscription. Proofsource's trial is free with no card.
Which AI platforms does the Semrush AI Visibility Toolkit track?
Its pricing page lists mentions from ChatGPT, Google AI, Gemini and Perplexity. Claude is not on that list. Proofsource asks ChatGPT, Perplexity, Claude and Google AI Overviews on the trial and in every plan's default four.
How is the Semrush AI Visibility Score calculated?
Semrush says the score reflects how often your brand is mentioned in AI answers compared with the median mentions of your top industry competitors, which it picks automatically. Proofsource reports the share of answers that name you, per engine and per question, with a 95% Wilson interval, against competitors the engines actually named.
Where Proofsource shines: 4 things it is built to do.
Each one is a mechanism: what runs, how often, and what would catch us out if it were not true.
The free trial is the real report.
The free trial asks 25 buyer questions on ChatGPT, Perplexity, Claude and Google AI Overviews, 2 scans a day apart, and hands back what a subscriber reads: which questions name you on which engine, who is named instead, and the pages each engine cited. No card, no call. One per company domain.
Every number arrives with the interval it was measured at.
Ask an engine the same question twice and you can get two answers, so one read is a draw, not a fact. We publish a 95% Wilson interval on every percentage and hold alerts until a change clears it. A tool that treats a single run as a finding will sell you progress on a day you did nothing.[3]
Four engines from the free trial, 4 on the price card.
ChatGPT, Perplexity, Claude and Google AI Overviews run side by side from the free trial upward, each priced per question on paid plans; Google AI Mode, Gemini, Microsoft Copilot, Grok, DeepSeek and Meta AI are enabled on a call. The questions are re-asked on their own on the cadence you pick: daily or weekly. The full history leaves as CSV or JSON over any date range, or through the REST API, so the record is yours.
Each gap names the page that beat you, then drafts the answer.
A gap carries the sources the engines cited instead of you. Then a draft built on what those pages have and yours does not, held for a human to approve, because nothing should publish itself in your name.
Already using Semrush AI Visibility Toolkit?
You do not have to choose on day one. Here is how teams run Proofsource beside Semrush AI Visibility Toolkit and decide on their own data.
Keep Semrush AI Visibility Toolkit running
Nothing about trying Proofsource needs you to stop Semrush AI Visibility Toolkit. Your history and reports there stay where they are.
Bring your questions across
Export or copy the prompts you track in Semrush AI Visibility Toolkit and add them as buyer questions in Proofsource, so both tools ask the same things.
Run both side by side
Read the two for the same days on your own domain. Where the numbers differ, Proofsource shows the answers and the pages each engine cited, so you can see why.
Keep what serves your team
Many teams keep one tool for reporting and another for fixes. Pick on your own evidence, not on a comparison page.
Proofsource or Semrush AI Visibility Toolkit: what buyers ask
How many prompts does the Semrush AI Visibility Toolkit track?
25 prompts on the base subscription, per its knowledge base, with 50 more available as a monthly add-on. Semrush One plans raise the limit.
How often does Semrush update AI visibility data?
Prompt tracking daily, Brand Performance reports weekly, and visibility overview and prompt research daily on a rolling basis, per its knowledge base.
Is there a free trial of Proofsource?
Yes. 200 answers. 25 Prompts/Question. Top AI engines. 2 days. Free. No card, no sales call. One free trial per company domain, and the report is about your own domain.
Which AI engines does Proofsource track?
ChatGPT, Perplexity, Claude and Google AI Overviews on the trial; paid plans pick from ChatGPT, Perplexity, Google AI Overview and Claude, each priced per question.
How often does Proofsource re-read the answers?
On the cadence each plan picks: daily or weekly. Answer sets move 9-27% day over day in our own sampling, so daily catches the most. The free trial runs 2 scans a day apart.
Where do the Semrush AI Visibility Toolkit facts on this page come from?
From Semrush AI Visibility Toolkit's own public pages, linked in the Sources list with the date we read them. We have not run Semrush AI Visibility Toolkit on a domain of our own, so no measured number on this page is theirs. If a row is out of date, tell us and we will change it.
Where each fact on this page comes from.
- Semrush AI Visibility pricing, read Oct 5, 2026. Semrush AI Visibility Toolkit's own page; no third-party roundup is used as a source.
- Semrush KB: AI Visibility Toolkit, read Oct 5, 2026. Semrush AI Visibility Toolkit's own page; no third-party roundup is used as a source.
- Wilson score interval. The interval we put on every visibility percentage. Introduced by E. B. Wilson in 1927 and standard for binomial proportions, because it stays honest at small sample sizes and near 0% or 100% where the naive normal approximation breaks.
- Proofsource sampling: day-over-day change in which brands get named, same question one day apart. Perplexity 27%, ChatGPT 18%, Google AI Overviews 12%, Claude 9%. How we measure.
Found a Semrush AI Visibility Toolkit row that has changed? Tell us and we will correct it here.
More sourced comparisons
A free trial settles this faster than either of us can write about it.
200 answers. 25 Prompts/Question. Top AI engines. 2 days. Free. No card, and the report is about your domain: which buyer questions name you, who is named instead, and the pages each engine cited.
Google AI OverviewsGoogle AI Mode
