The best AI SEO tools at a glance
| Tool | Best for | AI engines covered | Entry list price* |
|---|---|---|---|
| Semrush AI Visibility Toolkit | SEO teams adding AI tracking to a full suite | ChatGPT, Google AI, Gemini, Perplexity | $99/mo per domain (25 prompts, billed annually) |
| Ahrefs Brand Radar | Biggest real-prompt index; competitive AI share of voice | AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini, Copilot | Add-on from $199/mo (Ahrefs plans from $129/mo) |
| Profound | Enterprise answer-engine optimization | ChatGPT, Gemini, Claude, Perplexity + more | Custom/enterprise pricing |
| Otterly.ai | Affordable dedicated AI search monitoring | ChatGPT, AI Overviews, Perplexity, Copilot (+add-ons) | $29/mo (15 prompts) |
| Surfer | On-page content optimization + AI tracking | ChatGPT, AI Overviews, Perplexity + more (via AI Tracker) | $49/mo; AI Tracker add-on $158/mo (billed yearly) |
| WordLift | Entity SEO, knowledge graphs, schema automation | Optimizes for AI/search engines rather than tracking them | Quote-based |
*List prices from each vendor's public pricing page as of July 2026, most billed annually — verify current pricing before you buy; these change often.
Semrush AI Visibility Toolkit — best for teams already on Semrush
Semrush built its AI Visibility Toolkit on a large database of real AI-search prompts (the company cites 130M+ prompts across multiple regions), and that's its core strength: instead of guessing which questions to track, you can find the prompts where your brand — or a competitor — already appears, then monitor them daily.
The base plan lists at $99/month per domain (billed annually) and includes 25 tracked prompts with daily AI rankings, mention tracking across ChatGPT, Google's AI results, Gemini, and Perplexity, competitor analysis, prompt research, and an AI-readiness site audit. Larger multi-brand and agency needs route to its Enterprise AIO product at custom pricing.
Honest take: the obvious pick if you already live in Semrush — one login, one bill, SEO and AI visibility side by side. The 25-prompt cap on the base tier is tight for multi-service or multi-location businesses, and per-domain pricing adds up for agencies. There's also a free AI search visibility checker to sample the data before paying.
Ahrefs Brand Radar — best prompt index and competitive benchmarking
Brand Radar is Ahrefs' AI visibility product, and its differentiator is scale: an index the company puts at 271M+ real prompts, derived from actual search behavior rather than synthetic questions. It measures AI mentions, AI citations, and AI share of voice across Google AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini, and Copilot — and because it's an index, you can look up any brand, which makes competitor benchmarking genuinely useful rather than a marketing bullet.
Ahrefs also runs some of the most cited research in this space — its study of 75,000 brands found branded web mentions correlate with AI visibility at 0.664, roughly three times stronger than backlinks — so the metrics in the tool map to research the company publishes openly.
Honest take: the strongest data foundation of the trackers, but the pricing stacks: core Ahrefs plans start at $129/month and Brand Radar's AI tracking is a separate add-on listed from $199/month. For a small business that just wants a yes/no answer, start with the free AI Visibility Checker instead — more on that below.
Profound — best enterprise answer-engine platform
Profound is a purpose-built answer-engine optimization platform rather than an SEO suite with an AI bolt-on. It tracks visibility, sentiment, citations, and competitor share of voice across ChatGPT, Gemini, Claude, Perplexity, and more, supports 30+ languages and 150+ regions, and adds two things most trackers don't have: agent analytics that show how AI bots actually crawl and interpret your site, and built-in content workflows that go from brief to draft inside the platform.
Honest take: this is the category leader for enterprise brands that treat AI search as a board-level channel, and it's priced like it — sales-led, custom quotes, no public self-serve tier. A local business or small agency doesn't need this. A national brand fighting for AI shelf space probably does.
Otterly.ai — best affordable dedicated monitor
Otterly.ai does one thing — AI search monitoring — at the friendliest entry price of the dedicated tools. The Lite plan lists at $29/month for 15 prompts tracked daily across ChatGPT, Google AI Overviews, Perplexity, and Microsoft Copilot, with brand mentions, link citations, and sentiment included. Standard ($189/month, 100 prompts) adds API and agent-analytics access; Gemini, Google AI Mode, and Claude tracking are paid add-ons.
Honest take: the right first paid tool for a small business that has outgrown manual checking. The 15-prompt cap is the catch — it forces you to choose your money queries carefully (which, frankly, is a useful discipline). If you need engine coverage beyond the core four, price the add-ons before comparing it against Semrush.
Surfer — best on-page optimization with AI tracking attached
Surfer made its name scoring content against what already ranks, and that engine is still its core: real-time content scoring, internal-linking suggestions, and topical maps. Plans list from $49/month. In the AI era it added an AI Tracker add-on — listed at $158/month billed yearly with configurable prompt volumes — that monitors how often your brand and pages appear in answers from ChatGPT, AI Overviews, Perplexity, and other engines.
Honest take: buy Surfer for the optimization workflow, not primarily for the tracker. If your bottleneck is producing well-structured pages that both Google and AI engines can lift answers from, it earns its seat. If your bottleneck is knowing where you stand in AI answers, a dedicated monitor gives you more per dollar.
WordLift — best for entity SEO and knowledge graphs
WordLift is the odd one out on this list, and deliberately so: instead of tracking AI answers, it works on the inputs — building a knowledge graph of your business, marking up entities with structured data, automating internal links, and running an AI agent (Agent WordLift) that combines a language model with your curated graph for SEO tasks like content analysis and fact-checking.
Honest take: entity clarity is genuinely one of the highest-leverage AI SEO investments — an engine that can't resolve who you are will never cite you. WordLift is the most developed product in that niche. It's quote-based and takes real setup, so it fits content-heavy sites and technical teams more than a ten-page local business, which can get most of the entity benefit from clean schema and consistent listings.
Free AI SEO tools that are actually worth using
"Free AI SEO tools" is one of the most-searched variants of this query, and most lists answer it with trial versions. Here's what's genuinely free and useful in 2026:
A fair rule: free tools answer "do I have a problem?" Paid tools answer "is it getting better month over month?" You only need the second once you're actively working on the first.
What none of these tools can do
Here's the part every tool roundup skips, because most are written by the vendors. Every platform above is a measurement and recommendation layer. None of them can:
That's the honest division of labor: tools find problems, people fix them. It's why our engagements start with measurement — the same checks these platforms run — and then spend the real effort on execution: entity and schema work, answer-first content, crawler access, and the off-site authority engines actually cite. That end-to-end method is the Relevance Engine™, and what a typical program includes is laid out on our SEO packages page.
If you want the diagnosis without buying anything, claim the free AI visibility audit: a human strategist runs your real buyer prompts across ChatGPT, Gemini, Perplexity, and AI Overviews, checks your crawler access, and sends a scored report with fixes in priority order.
Frequently Asked Questions
What is the best AI SEO tool in 2026?
There's no single winner — it depends on the job. Ahrefs Brand Radar has the largest real-prompt index for AI visibility tracking, Semrush's AI Toolkit is the best fit for teams already on its suite, Otterly.ai is the affordable dedicated monitor, Profound leads at enterprise scale, Surfer for on-page optimization, and WordLift for entity and schema work.
What are the best free AI SEO tools?
Ahrefs' free AI Visibility Checker and Semrush's free AI Search Visibility Checker both preview your brand's AI mentions at no cost. Add a free technical scanner for crawler access and structured data, a free llms.txt generator, and Google Search Console — plus the manual method of asking the engines your customers' questions in a clean session, which costs only twenty minutes.
Which AI is best for SEO optimization?
If the question is which assistant to work with, it splits by task: Perplexity for cited research, Claude for drafting and schema, ChatGPT for keyword ideation, Gemini for Google-stack data work. That's a different comparison from the tracking platforms in this roundup — we break it down fully in which AI is best for SEO.
How do I use AI for SEO in 2026?
Three layers: use AI assistants to speed up research, drafting, and analysis; use AI SEO tools to track how engines mention your brand and to score your pages; and optimize your own site so AI engines cite it — entities, schema, answer-first content, and open crawler access. The third layer is where the revenue is, and it's the one no subscription does for you.
How much do AI SEO tools cost?
As of July 2026, vendor list prices run from free (Ahrefs' and Semrush's checkers) to roughly $29–$99/month for entry tiers (Otterly.ai, Semrush AI Toolkit, Surfer), $158–$199/month for tracking add-ons (Surfer AI Tracker, Ahrefs Brand Radar), and custom enterprise pricing (Profound, Semrush Enterprise AIO). Always verify current pricing on the vendor's site — these tiers change frequently.
Is SEO dead in 2026 — should I even buy these tools?
SEO isn't dead; it's widening. Google still handles billions of searches a day, and the AI engines that answer alongside it decide who to cite based on classic signals — content quality, entities, authority. The work changed shape, not value. We make the full case in is SEO dead in 2026.
16 years in digital marketing, focused on AI SEO, GEO, AEO and local search. Every claim in this article links to its source — and every method here is what we run for real client campaigns.