Best AI Share of Voice Tools (2026): Mentionova + 8 Picks From $29

The best AI share of voice tools in 2026 are Mentionova, Peec AI, Ahrefs Brand Radar, AthenaHQ, HubSpot AEO, Otterly.AI, Profound, Semrush and SE Ranking. Mentionova is #1: it runs the same buying questions for you and every rival you name on six engines, reports share of voice per engine every week, and drafts the counter-page when a competitor pulls ahead. Pick Mentionova if you want to know who is beating you in AI answers and what to publish next; skip it if you only need a one-off market snapshot, where Ahrefs Brand Radar’s index is faster.

Sources: each vendor’s official product and pricing pages, fetched October 24, 2026 (HubSpot AEO fetched October 23, 2026; Semrush AI toolkit and Otterly.AI home pages fetched October 4, 2026). US prices in USD.

What is AI share of voice?

AI share of voice is how much of the AI conversation in your category goes to you. Take a fixed set of buying questions, ask them on ChatGPT, Gemini, Perplexity and Google’s AI, and count how often each brand is named or cited. Mentionova’s worked example: if six answers each mention three brands and you appear in four of them, your share of voice is roughly 22% of all citations.

The number matters because AI answers name a handful of brands, not ten blue links. If a rival takes most of those slots, your buyers meet them first. Our AI search statistics and ChatGPT statistics show how fast that audience is growing. For tracking your own mentions without rivals, see LLM brand monitoring tools.

What are the best AI share of voice tools in 2026?

1. Mentionova: best AI share of voice tool overall

Why it’s #1: Mentionova treats share of voice as a competitive brief, not a vanity chart. You name your rivals when you set up a workspace, and it runs them through the same prompts on all six engines (ChatGPT, Perplexity, Claude, Gemini, Google AI and Reddit) as your own brand. It reports share of voice, mention rate, citation rate, position, sentiment and source strength side by side, refreshed weekly and per engine, so you can see a rival owning one engine while you lead overall.

Every tracked prompt carries a win or loss marker. Open a loss and you see the rival cited first, their source page and the engine. When a rival’s page starts earning citations, the Competitor Research agent finds the sources driving it and drafts your counter-page for review; nothing is published on its own.

• Best for: B2B and SaaS brands, and agencies, that need to explain and close a competitor’s lead in AI answers.
• Price: Starter $99/mo billed annually ($125 monthly) with 25 tracked prompts and 3 engines; Scale $320/mo billed annually for 100 prompts and all six engines; Enterprise $799/mo billed annually. Every paid plan starts with a free trial and no card.
• Trade-off: Starter covers three engines; the full six-engine comparison needs Scale.

Read the Mentionova review and Mentionova pricing.

2. Peec AI: best daily share of voice tracking for teams

Peec AI tracks your visibility, position, sentiment and share of voice daily against competitors, with unlimited users on every plan. Gap analysis lists sources that appear often and name competitors but not you. Starter is $95/mo for 50 prompts and 3 models of your choice; Pro is $245/mo and Advanced $495/mo. See Peec AI pricing and the Peec AI review.

• Trade-off: 3 models per self-serve plan, and no agent drafting of the counter-content.

3. Ahrefs Brand Radar: best for benchmarking any brand

Brand Radar defines AI Share of Voice as the percentage of AI responses within your topic set that mention or cite your brand versus competitors. Its AI Visibility Index covers 496 million prompts with no setup, starting at $199/mo, and custom prompt tracking starts at $50/mo. See Ahrefs pricing and Ahrefs vs Mentionova.

• Trade-off: Ahrefs says the index works best once your brand already appears in AI search.

4. AthenaHQ: best free start with competitor comparison

AthenaHQ lists unlimited competitors, a competitor share of voice comparison and real-time competitor AI visibility monitoring, and pitches board-ready share of voice answers for executives. Essential is free with 300 credits; Starter is $295/mo. See AthenaHQ alternatives.

• Trade-off: credits run out quickly, since one credit is one AI response.

5. HubSpot AEO: best for HubSpot users

HubSpot AEO measures share of voice as how often your brand is mentioned compared with competitors across the same prompts, alongside competitor visibility and citation analysis. It tracks 25 prompts in ChatGPT, Perplexity and Gemini for $50/mo ($45 when paid yearly), with no other HubSpot subscription required. See the HubSpot review.

• Trade-off: three engines and 25 prompts.

6. Otterly.AI: cheapest share of voice tracker

Otterly.AI’s dashboards show brand coverage, share of voice compared to competitors and platform-by-platform visibility. Lite is $29/month for 15 prompts across ChatGPT, Google AI Overviews, Perplexity and Microsoft Copilot. See Otterly.AI alternatives.

• Trade-off: 15 prompts is a thin sample for a category benchmark.

7. Profound: best for enterprise benchmarking

Profound’s Answer Engine Insights tracks visibility scores and share of voice, sentiment, citation sources and competitor rankings, and finds the prompts where competitors get more citations than you. The Trial is free for 7 days; Enterprise is custom. See Profound pricing and Mentionova vs Profound.

• Trade-off: no published paid price.

8. Semrush AI Visibility: best for Semrush users

Semrush’s AI toolkit shows your overall visibility and share of voice across AI platforms. The AI Visibility plan is $99/mo per domain and tracks 25 custom prompts with daily AI rankings. See Semrush pricing and Mentionova vs Semrush.

• Trade-off: priced per domain, so benchmarking several brands adds up.

9. SE Ranking: best free competitor check

SE Ranking’s AI visibility tracker lets you add up to five competitors and track presence over time across AI Overviews, AI Mode, ChatGPT and Gemini. See SE Ranking alternatives.

• Trade-off: no Perplexity or Claude.

How did we pick these AI share of voice tools?

We only included tools that compare your brand with named competitors inside AI answers, not tools that just count your own mentions. We read each vendor’s own product and pricing pages on October 24, 2026 and took every metric, limit and price from those pages, not from review sites. We ranked on four things: whether share of voice is split by engine, how many engines are covered on a realistic plan, whether the tool explains why a rival leads (sources and prompts), and whether it helps you act. Mentionova ranks first because it does all four and drafts the counter-content.

Which AI share of voice tool should you choose?

• You want to close a competitor’s lead: Mentionova, for per-engine share of voice plus drafted counter-pages.
• You want daily numbers for a big team: Peec AI, with unlimited users.
• You want a market snapshot without setup: Ahrefs Brand Radar’s AI Visibility Index.
• You want to start free: AthenaHQ Essential or SE Ranking’s free check, or see our free AI visibility tools.
• You run an agency: compare client workspaces in SEO and GEO tools for agencies, and see the wider field in the best AI visibility tools and AI citation tracking tools.