Best generative engine optimization tools in 2026

Profound Starter costs US$ 99 a month with yearly billing and covers one engine: ChatGPT. That single line explains most of this category. The headline price is honest, and the coverage sitting behind it is nothing like what a buyer assumes when they read it.

Otterly gets to the same place from the other side. Lite is US$ 29 for 15 tracked prompts, the cheapest entry point on the list, except Gemini and Google AI Mode sit outside every base plan and cost from US$ 9 to US$ 149 per month on top. Price the plan you would actually sign, with the engines your buyers actually use, and the order of this list moves.

Promptado is the lower cost Brazilian entry in this table. Essential is R$ 399 per month for 20 prompts run daily on ChatGPT and Gemini, with published content, action plan and page audit quotas. That makes it a serious fit for a small store whose decision set and budget stay inside that scope.

Then there is the prompt number, where most comparisons quietly fall apart. Profound Growth advertises 100 prompts tracked and 9,000 responses per month, which is the same 100 prompts re run daily across its three engines. The naia Autoridade plan carries 220 prompts per analysis and four analyses a month, so 880 executions across a much wider question set. Neither figure beats the other. More distinct prompts covers more of what buyers ask; more responses per prompt catches a change in the answer sooner. Anyone who folds those into one volume column is selling you something.

Language never makes it into the feature matrix. A question typed in English is a different question from what a Brazilian buyer types in Portuguese, and the engines answer it differently. How wide that gap runs by category, we have not measured well enough to put a number on it. What we are confident about is the direction: if your revenue is in Brazil, an English only tool is reporting on somebody else's market.

Start with the number that should shape the evaluation. Autoridade commercially includes four complete analyses per month at R$ 1.490, while Promptado, Profound and Semrush publish daily collection for the plans compared here. naia also documents configurable automations, so a buyer who needs a specific refresh schedule should confirm the automation scope and credit use before subscribing.

What Autoridade does carry: 220 queries per analysis, 200 of them in AI Google Search and 20 custom prompts across the published LLM coverage, one brand, and billing in reais so a currency swing does not reprice your tooling. Google AI Overview, ChatGPT, Gemini and Llama come inside the plan instead of arriving as paid add ons. Against Profound Growth at 100 tracked prompts and Starter at 50, the width of the question set is where naia is genuinely ahead.

The one thing nobody else on this list does is read Meta AI inside WhatsApp. In Brazil that carries real weight, because WhatsApp is where people already ask everything else. Outside Brazil it is close to irrelevant, and saying so plainly seems better than dressing it up as global coverage. Buyers all in English, none of them in WhatsApp? Then most of what justifies the price evaporates and you should probably be looking at Profound or Semrush.

There is a free tier: two prompts, no card. Enough to find out whether your brand appears at all. Nowhere near enough to run a program on.

Before you book a single demo, do the boring thing. Take ten questions your buyers really ask, in the language they ask them, type them into ChatGPT and Gemini yourself, and write down what comes back. That is your baseline. It costs nothing, it takes an afternoon, and it is the only part of this process no vendor gets to shade.

Now you have something to hold the demos against.

Does the plan you would actually sign include the engines that produced those ten answers, in your language and region? Does the tool name the competitors the engines named, or does it only watch your own brand, which is a far easier product to build and a far less useful one to own? Can you open the raw answer text sitting behind any metric on the dashboard? Ask that last one of every vendor here, naia included, and treat a no as an answer.

One caveat over all of it. This category barely existed two years ago, pricing pages move monthly, and the engines change their retrieval behaviour without telling anyone. The comparison was revised on 2 August 2026, and every row shows the date its figures were verified. Some values will change, and we would rather write that down than let the table imply permanence.