Similarweb AI Search Review 2026: Four Engines for Visibility, Four More for Traffic, and It Tells You Which

Most vendors in this category give you one engine count. Similarweb gives you two, and explains the difference in its own FAQ: “We track ChatGPT, Perplexity, Gemini, and AI Mode for AI Brand Visibility. Our AI Traffic analytics extend even further, capturing referral data from Copilot, Claude, DeepSeek, and Grok.”

Four engines answer “does the AI mention me”. Four different ones answer “did anyone arrive from there”. Those are not the same question, almost nobody separates them, and a buyer who reads “eight LLMs” and assumes eight visibility trackers has been misled by their own inference rather than by the page.

Disclosure: EchoWi sells AI visibility measurement, so Similarweb is a competitor in part of what it does. Every figure below was read from similarweb.com/packages/ai-search/ and aisearch.similarweb.com/geo/ on 7 August 2026 and is recorded in our verified catalogue with that date.

The short version

1. $99 a month billed annually, $129 month to month, for 150 tracked prompts and one seat.
2. Four engines for brand visibility: ChatGPT, Perplexity, Gemini and AI Mode.
3. Four more for referral traffic only: Copilot, Claude, DeepSeek and Grok.
4. The dearer packages add no engines. $399 and $649 buy SEO, competitive and advertising intelligence.
5. 150 prompts at $99 is among the best prompt-per-dollar rates we have verified.

What it costs, verified

Read from similarweb.com/packages/ai-search/ on 7 August 2026.

Every package is one user. The entry package carries 150 tracked prompts.

Two notes on that table. The annual-equivalent prices for the two dearer packages are advertised but do not appear in the page we fetched, so we are not printing numbers we could not read. And the ladder is not an AI ladder: what $399 and $649 buy is the rest of the Similarweb platform, not more coverage of AI answers.

The distinction nobody else draws

Here is the FAQ answer in full, because it is the most useful sentence on the site:

“We track ChatGPT, Perplexity, Gemini, and AI Mode for AI Brand Visibility. Our AI Traffic analytics extend even further, capturing referral data from Copilot, Claude, DeepSeek, and Grok to give you a total view of AI-driven visits.”

Visibility and referral traffic are different measurements with different failure modes.

Visibility asks whether an assistant names you when someone asks a question in your category. You can be highly visible and receive no clicks at all, because the answer resolved the question and the user never left. That is the whole premise of this market.

Referral traffic asks how many people arrived at your site from an assistant. It is measured from your own analytics, not from the model, and it undercounts by design: assistants strip referrers, users retype URLs, and a brand named in an answer that nobody clicked shows up as zero.

So a tool that tracks Claude for traffic and not for visibility cannot tell you whether Claude recommends you. It can only tell you how many people Claude sent. If Claude is the model your buyers use, that is the wrong half of the question, and Similarweb’s own sentence is what lets you work that out before paying.

We have said something similar once before, about Qwairy, which labels each of its ten providers UI, API or both. Two vendors out of the 61 in our catalogue that publish an entry engine count also publish the distinction that decides what their number means. It should not be two.

The arithmetic

At the entry package you are buying 150 tracked prompts for $99, or $0.66 per prompt per month. Set against the rest of the catalogue at similar money:

On prompts per dollar the incumbent is the cheapest of the four, which is not what you would expect from the largest company in the comparison, and it is worth saying plainly.

Two caveats keep that honest. Similarweb’s 150 prompts run across four visibility engines where Gumshoe’s 100 run across six, so per prompt-engine pair the gap narrows. And the entry package is one seat with three months of history, which is a researcher’s plan rather than a team’s.

The number the page does not give

150 prompts is a count. It is not a measurement until you know how often each one runs, and the packages page does not say.

That matters more here than it sounds. We ran the same prompts repeatedly across nine categories and found the repetition a category needs ranges from about three runs to about thirty, depending on how much the answer moves. A hundred and fifty prompts checked monthly is 150 single draws, and a single draw of a volatile category is a coin toss with a decimal point on it. The same 150 checked daily is a real series.

So the prompt count, which is this package’s best number, cannot be converted into confidence without the one figure the page withholds. It is the first thing to ask on the call, and the answer changes the value of everything above by more than the price does.

Where Similarweb is the right choice

You already pay them. If Similarweb is in your stack for traffic or competitive intelligence, the AI module sits beside data you already trust, on one contract, with the same definitions of a competitor set.

You want visibility and arrivals in one place. Almost every tool in our catalogue measures one side. This measures both and, more importantly, does not pretend they are one number.

You want prompts, not features. 150 at $99 is the most tracked prompts per dollar of any entry plan we have verified this week.

You need the traffic half to be credible. Similarweb’s referral measurement rests on its panel and clickstream, which is the part of its business that has been scrutinised for a decade. Whatever you think of panel data, it is a known quantity with published methodology, which is more than most of this category can say.

Where Similarweb is the wrong choice

You need visibility tracking on Claude, Copilot, Grok or DeepSeek. Those four are traffic only. No published package changes that.

You are a team. Every published package is a single seat.

You want a long baseline at the entry price. Three months of history on the $99 package, six on the dearer ones.

You want AI visibility without the suite. The upgrade path spends your money on SEO, ads and competitive intelligence. If you want deeper AI coverage specifically, this ladder does not sell it.

What we could not verify

• The annual prices of the two dearer packages. Advertised as billed annually; the figures are not in the page we fetched, so we did not derive them.
• What counts as a tracked prompt, and whether a prompt run on four engines consumes one unit or four. The page gives the count and not the unit.
• The refresh frequency. Not stated on the packages page.
• Whether the free registration is a trial or a limited free tier, and what it includes.
• The demand for the product itself. Similarweb the brand draws 42,280 searches a month in the United States and 10,205 in France. similarweb geo draws 10. We can measure the company’s demand and not the module’s, and it would be dishonest to present the first as the second.

What this vendor says about the market

One number from this review is worth more than the review.

Similarweb is the second most searched brand in our entire catalogue, behind Semrush and ahead of Ahrefs. It sells AI visibility tracking at a competitive price with an unusually honest specification. And in the eight runs behind our study of what Google’s AI actually recommends, it was cited exactly as often as the rest of the famous names in this category: not once.

That is the pattern we keep measuring and cannot yet explain. Brand demand and AI citation are close to unrelated in this category, and the biggest names keep proving it.

Common Questions About Similarweb AI Search Intelligence

How much does Similarweb AI Search Intelligence cost?

$99 a month billed annually, or $129 month to month, for the AEO Intelligence package: 150 tracked prompts, one seat and three months of history. Read from similarweb.com/packages/ai-search on 7 August 2026. Two dearer packages at $399 and $649 a month add SEO, competitive and advertising intelligence, and Enterprise is a sales call.

Which AI engines does Similarweb track?

Four for brand visibility: ChatGPT, Perplexity, Gemini and AI Mode. Its referral traffic analytics reach four more, Copilot, Claude, DeepSeek and Grok, which measures visits arriving from those assistants rather than whether your brand is named in their answers. Similarweb states the split in its own FAQ.

Does the more expensive Similarweb package track more AI engines?

No. The $399 and $649 packages add keyword research, rank tracking, site audits, competitor alerts and advertising intelligence. Visibility coverage stays at four engines on every published package.

Is Similarweb good value for AI visibility?

On prompts per dollar it is the best entry plan we verified this week: 150 prompts for $99, against 100 for $99 elsewhere and 25 for €75. The limits are one seat, three months of history at the entry price, and visibility on four engines rather than the eight its traffic analytics touch.

What is the difference between AI visibility and AI referral traffic?

Visibility is whether an assistant names your brand when asked a question in your category. Referral traffic is how many people then arrived at your site from that assistant. You can be highly visible and get no traffic, because the answer resolved the question. Measuring only traffic tells you nothing about whether you were recommended.

Where can I compare Similarweb with the rest of the market?

In our verified catalogue, where every tool’s price and engine count is read from the vendor’s own page on a stated date.