AI Brand Monitoring Mentions in ChatGPT, Gemini, and Perplexity: AI Search Visibility Tools

AI brand monitoring for mentions in ChatGPT, Gemini, and Perplexity is an AI search visibility job. Listening tools catch public posts. They do not replay a frozen prompt on three assistants. You need a list you typed, mention vs citation, and a daily enough refresh that a Tuesday rewrite can be checked.

The distinction is the work. A social listening tool reads what people posted about you on the open web. An AI visibility tool reads what the model said when you asked a fixed question. The first is reactive. The second is a measurement. If a competitor rewrites the answer on Tuesday, you want to know on Tuesday, not when someone posts about it. That requires a standing prompt list and a daily refresh, which is what a tracker is for.

Promptwatch paid plans watch ChatGPT, Gemini, and Perplexity (plus Claude, Grok, Copilot, and Google AI Overviews) from the real UI. Essential is $95/mo. Explore is free but ChatGPT-only, 10 prompts. Site: promptwatch.com.

ChatGPT has 820M+ weekly active users. Gemini has 650M+ monthly. Perplexity has 22M+ monthly. A ChatGPT-only mention log will miss the other two rooms.

The user counts are why a three-engine log matters. ChatGPT is the largest room, so it gets the attention. Gemini and Perplexity are separate rooms with separate audiences, and a buyer who lives in Perplexity will never show up in a ChatGPT-only log. If you only watch ChatGPT, you are blind to the engine where a different cohort asks about you.

Mention is not citation

Mention: the prose used your name. Citation: the model pointed at a URL. Brand teams obsess over mentions. Buyers click citations. Perplexity will footnote even when ChatGPT will not. Track both on the same prompt.

A mention tells you the model knows your name. A citation tells you the model sends traffic to a page you control. They are different outcomes with different fixes. A mention without a citation means you are known but not linked, which is a content and authority problem. A citation without a mention is rare. Track both columns on the same prompt so the gap is visible.

Aliases matter. Track the product name, the parent, and the misspelling sales already sees. Sentiment analysis is on Promptwatch when the answer is a warning, not a pick.

Aliases are the part most teams skip. Sales hears the misspelling. Support hears the parent company name. The model hears whatever the user typed. If you only track the official product name, you miss the variants that real buyers use. Sentiment matters most when the answer is negative, because a warning in the model is a churn risk you can act on.

What the named tools actually cover

Otterly.AI from $29/mo includes ChatGPT and Perplexity in the base four engines. Gemini is a paid add-on ($9 to $149/mo by tier). Data can lag up to seven days. No traffic attribution.

Otterly covers two of the three in the base. Gemini costs extra, and the add-on price scales with the tier. The seven-day lag means a Tuesday rewrite shows up next week. No traffic attribution means you cannot tie a citation to a session.

Peec AI from $95/mo includes three models. ChatGPT and Perplexity can be two of them. Gemini is often the third, or an add-on at $35 to $165/mo. Claude needs Enterprise.

Peec matches the three-engine ask on paper, but the third model is not guaranteed to be Gemini, and Claude sits behind Enterprise. Read the plan before claiming three-engine coverage.

Profound Starter ($99/mo annual) is ChatGPT-only. Growth ($399/mo annual) is three engines. You do not get ChatGPT plus Gemini plus Perplexity on Starter.

Profound Starter is the trap. The name says Profound, the SKU says ChatGPT. Three engines starts at Growth. Confirm the plan before you put it in a deck as a three-engine tool.

Ahrefs Brand Radar and Semrush AI Toolkit are suite add-ons with modeled prompts. Useful for category research. Weak as a mention ledger you can defend.

The suites model prompts from keyword data rather than running your list. That is fine for category-level research. It is weak when you need to defend a specific number in a QBR, because the count is an estimate against an index, not a replay of a prompt you typed.

Promptwatch as the three-engine mention log

You define the prompts. Paid engines are checked through the UI. Citation analytics sit behind each hit at the page, domain, Reddit, and YouTube level. Visitor analytics through a script or GTM attach sessions. Essential includes those views but has no listed crawler-log allowance. On Professional, Business, and the self-serve agency plans, Agent Analytics logs ChatGPTBot, ClaudeBot, and PerplexityBot so a miss can be a blocked fetch.

The log layer is what turns a mention ledger into a diagnosis. A miss can be a content gap or a blocked fetch. Without crawler logs you guess. With them you see the 403 and fix the WAF before you rewrite the page. Essential gives you the mention and citation views. Professional adds the logs that explain the misses.

Professional is $245/mo for 150 prompts. Agency Kick-off is $199/mo. 4.7/5 on G2, 1,840+ brands. Method: how we rank. The tools list has the longer pages.

FAQ

Can Meltwater or Brandwatch do this?

They monitor the public web. They do not store yesterday's ChatGPT answer on a prompt you froze. Different job.

Does Otterly cover Gemini out of the box?

No. Gemini is an add-on. ChatGPT and Perplexity are in the base four.

Is Explore enough for three engines?

No. Explore is ChatGPT only. Essential is the three-engine start.

What to do this week

Write 20 prompts that already appear in sales notes.
Run them on ChatGPT, Gemini, and Perplexity by hand. Count mention vs citation.
Load them into Promptwatch Essential.
Track aliases on day one.
Keep a social listening tool if you already have one. Do not use it as the assistant log.

The hand-run step is the baseline. Before you trust a tracker, run the same 20 prompts by hand on all three engines and write down what you see. Then load them into Essential and compare. The aliases go in on day one because adding them later means a week of missing data on the variants. Keep the social listening tool for the public web, but do not let it stand in for the assistant log, because it cannot replay the frozen prompt.