Who this ranking is for
Teams and solo marketers starting from nothing. That is a deliberate lens, and it changes the answer: the tool with the widest engine coverage is not the best first purchase if getting to it costs several hundred dollars a month.
If your situation is different - an existing Ahrefs or Semrush subscription, an enterprise procurement process, a need for seventeen engines - the ranking below still tells you which tool fits, and the chooser above points you straight at it.
What the scores are built from
Published pricing and product pages, read and dated. Where a vendor publishes no price we write "not published" rather than estimating, and it counts against them on the first criterion - a tool you cannot buy without a sales call is not one you can start with this week.
Why every price carries a date
This category is roughly eighteen months old and repackages tiers constantly. An undated price in a market moving this fast is worse than no price at all.
Ownership and money
LLM Brand Boost is operated by the same people who publish this site. It is labelled as ours everywhere it appears and scored on the same five criteria as everything else. It ranks first here because it is the only tool in the set with a permanent free tier and the lowest paid entry step - on engine coverage, the criterion weighted third, it is beaten by four of the others and we say so on its page. Some links are affiliate or first-party links and we may earn from them.