Content gap analysis: the topics competitors win without you.

Content gap analysis is the process of finding the topics your buyers ask about that your content doesn't cover, or covers less convincingly than a competitor. The classic version compares keyword rankings with rivals on Google. For AI search, the gap that matters sits in the answers themselves: the prompts where ChatGPT, Perplexity, Claude, Gemini, Google AI or Reddit name a competitor and leave you out. Mentionova finds those prompts, groups them into topics, and names the page that would close each one.

A content gap analysis tool for AI search starts from tracked prompts rather than keywords. Each prompt runs across the answer engines on a schedule, and every answer that names a competitor but not you is logged as a gap. Gaps about the same subject are grouped into a topic, the sources cited in your place are listed, and each topic is mapped to a new page or a refresh of an existing one, so the output is a publishing plan, not a spreadsheet.

Your tracked prompts across ChatGPT, Perplexity, Claude, Gemini, Google AI and Reddit. Any answer in the last 30 days that names a competitor and not you counts as a gap. Each gap carries the engine, the competitor named and the sources cited, and gaps about the same subject are grouped into one topic with a page to close it.

A keyword gap report compares Google rankings: the keywords a rival ranks for and you don't. This compares answers: the questions where an engine recommends a rival and leaves you out. The two overlap, but the answer gap is the one that decides who gets named when a buyer asks an AI engine which product to choose.

The competitors you track in your workspace. Each topic shows which of them is named most often and on which engines, so you can see whether one rival owns a topic or several share it. Add a competitor to your workspace and the next analysis includes the answers that name them.

Yes. Every topic ends with a named page: a new guide to write, or an existing page to refresh. Send the topics to a grid and each gets a brief with the angle, the facts to include, and the sources the engines trust for those prompts. Your team writes and edits, and nothing ships without approval.

The gaps come from your tracked prompts, which re-run on the schedule you choose: weekly, every two weeks or monthly, or daily through the API. The opportunities behind them are rescored every night, so a topic you close drops down the list and a new one rises as soon as the engines start naming someone else.

Usually the biggest topic: the one that covers the most prompts, shows up on several engines, and is led by one competitor, because a single well-built page can answer all of those prompts at once. The analysis sizes every topic by how many prompts it covers and flags the top gap, so the first page is an easy call.