How to Choose an AI SEO Tool (Decide by the Question, Not the Feature List)

Choose an AI SEO tool by naming what you actually can’t do today: turn a keyword into a data-backed brief without burning an afternoon on manual SERP research, keep ten writers scoring drafts against the same objective bar, or prove to a client that rankings actually moved. These are three different jobs wearing the same “SEO tool” label, and buying the wrong one is how solo publishers end up paying agency prices for features they’ll never touch.

Answer 1: I need a brief and a scoreboard, and I publish alone or in a small team → Frase

You’ve got a keyword and no time to manually read the top ten results before writing. Frase turns that keyword into a SERP-backed brief in minutes, then scores your draft against what’s actually ranking — starting at $39/mo for 10 articles and 50 audit pages a month, one seat, one site. Write the prose in a real assistant seat (Claude, not Frase’s built-in writer); use Frase for the research and the bar. Higher tiers add AI-visibility tracking across more answer engines and an auto-publish agent, but the $39 door is the one most solo operators and small teams actually need.

Answer 2: I run a content team or agency and need everyone scoring against the same bar → Surfer SEO

Ten writers, ten different opinions about what “optimized” means, and no shared standard to settle the argument. Surfer’s Content Editor gives every draft an objective score against live SERP data, which is the actual product — not the AI drafting tools layered on top. Entry is $49/mo (Discovery), but that tier has no AI-answer-visibility tracking at all; if watching how you show up in ChatGPT and Perplexity answers matters, Standard at $99/mo is the real starting price. Surfer earns its cost at publishing volume — a few posts a month, and Frase covers the same editing job for less.

Answer 3: I need to prove rankings moved and see what competitors are doing → Semrush

A client or a boss wants a number, not a vibe, and neither Frase nor Surfer is built to measure movement over time or benchmark against named competitors. Semrush is the deepest keyword and competitive-intelligence dataset in mainstream reach, and since Adobe’s April 2026 acquisition every paid plan includes AI-answer visibility, starting with the $139.95/mo SEO plan; the Semrush One bundles that track daily prompts start at $199/mo. It’s priced for businesses proving results, not for drafting the next post — pair it with Frase or Surfer rather than expecting it to replace either.

The overlap worth naming

All three now track whether AI answer engines cite you, at different depths — Frase and Surfer as an add-on to the content workflow, Semrush as part of a measurement suite. None of them is a dedicated AI-visibility specialist; if that single question is the whole job, Profound tracks it deeper and nothing else. Buy the content tool for the content job, and add a visibility specialist only once AI-answer share is a line item you report on.

Quick reference

Your question is…	Tool	Entry cost
Need a brief and score, solo or small team	Frase	$39/mo
Need a shared editing bar across a team	Surfer SEO	$49/mo ($99 for AI-visibility tracking)
Need to prove rankings moved, with competitor data	Semrush	$139.95/mo SEO plan (or $199 for Semrush One)
AI-answer visibility is the whole job	Profound	Free 7-day trial, then Enterprise (custom)

Tools need jobs. Name the one you’re actually stuck on, and the SEO tool picks itself.