9 Best AEO Tools by Engine Coverage: ChatGPT, Gemini, Perplexity, AI Mode and Copilot (2026)

TL;DR: which AEO tool has the best engine coverage?

LLMrefs and Profound cover the widest set of engines (11 and up to 9), and Trakkr includes 8 on every plan. Listable Labs is the best balance for most brands: ChatGPT, Gemini and Google AI Mode are included from $89/month, with Perplexity, AI Overviews and Copilot as add-ons. Otterly.ai is cheapest, but sells Gemini and AI Mode separately.

The matrix below shows exactly which engine sits on which plan, checked in October 2026.

How we compared engine coverage

This guide is for marketers and agencies who already know they need an AEO tool and want to be sure it tracks the engines their buyers use. We compared each tool on:

• Included engines: what the base plan runs without extra cost.
• Add-ons and caps: extra engines, model limits and Enterprise-only engines.
• Price per engine: the entry price against the engines it buys.
• Prompt limits: more engines multiply answers, so prompts matter too.
• Depth beyond tracking: citations, competitor data and actions.

Prices and engine lists were checked on vendor pricing pages in October 2026. Airefs, which appeared on older lists, no longer has a working site and has been removed.

Comparison table: 9 AEO tools at a glance

Engine coverage matrix: ChatGPT, Gemini, Perplexity, AI Mode, AI Overviews, Copilot, Claude

Key: Yes = included on the entry plan. Add-on = paid extra. Pick = one of the models you choose within a cap. Ent. = Enterprise plan only. Not listed = not named on the pricing page.

Profound's free trial runs ChatGPT, Gemini and AI Overviews only. Peec AI includes 3 models on Starter and Promptwatch includes 4 models per plan.

1. Listable Labs: best balance of included engines and action

Verdict: three engines included on every plan, with the citation data and content actions that turn coverage into results.

Listable Labs is an AI search visibility and AEO platform built in Bengaluru for India, US and global brands. ChatGPT, Google Gemini and Google AI Mode are included on every plan, from Growth at $89/month with 50 prompts and 4,500 analysed answers. Perplexity, Google AI Overviews and Microsoft Copilot are add-ons.

The honest limits: Claude, Grok, Meta AI and DeepSeek are not tracked, and each plan includes 3 models. What you get for that is an Insights, Actions, Impact loop: visibility, mentions, citations, share of voice and a competitor benchmark, then a prompt explorer, a knowledge base and AI-optimized article generation with review steps, then Google Analytics, Search Console, Bing Webmaster Tools and Cloudflare integrations. The Listable Labs MCP lets you query results from Claude, ChatGPT, Cursor and other MCP clients.

Scale at $249/month adds 5 projects and white-label reports for agencies, and Max at $400 adds unlimited projects and 400 prompts.

Best for: brands whose buyers use ChatGPT, Gemini and Google. Starting at: from $89/month, free to start. See pricing.

2. LLMrefs: widest coverage at the lowest all-in price

Verdict: 11 engines on one flat plan, tracked by keyword, refreshed weekly.

LLMrefs offers a free account and one All in One plan at $79/month for 500 prompts, unlimited projects and team members. Engines include ChatGPT, ChatGPT Search, AI Overviews, AI Mode, Gemini, Perplexity, Claude, Grok, Copilot, Meta AI and DeepSeek. It tracks keywords and generates prompts from them. Results refresh at least weekly, not daily, and it is lighter on content actions.

Best for: SEOs who want every engine at the lowest price. Starting at: from $79/month.

3. Profound: widest enterprise coverage

Verdict: up to 9 engines plus agents and enterprise controls, with no public self-serve price.

Profound's Enterprise plan covers ChatGPT, Perplexity, AI Mode, Gemini, Copilot, DeepSeek, Claude, AI Overviews and Exa, with daily tracking, API and SSO. The free 7-day trial covers only ChatGPT, Gemini and AI Overviews, with fixed prompts. Pricing beyond the trial is custom enterprise pricing.

Best for: large brands that need every engine and security controls. Starting at: custom enterprise pricing.

4. Trakkr: every model on every plan

Verdict: 8 models at a flat price, but no AI Mode or Copilot.

Trakkr Growth is $100/month for 1 brand, 50 prompts, 25 articles and 3 seats, with MCP. It covers ChatGPT, Claude, Gemini, Perplexity, AI Overviews, Grok, DeepSeek and Meta AI, with no per-model fees. AI Mode and Copilot are not listed. A 14-day trial needs a card.

Best for: startups that want full model coverage at a fixed price. Starting at: from $100/month.

5. Ahrefs Brand Radar: broad Google coverage inside Ahrefs

Verdict: strong on Google surfaces and Copilot, with check-based pricing.

Brand Radar covers AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini and Copilot, plus Claude on custom prompts. Custom prompts start at $50/month for 2,500 checks, where one prompt on one platform for one update equals one check. Every extra engine multiplies cost, so heavy multi-engine tracking adds up. The AI Visibility Index with its 462M+ prompt database starts from $199/month.

Best for: existing Ahrefs users. Starting at: from $50/month.

6. Peec AI: clean tracking with a model cap

Verdict: a wide menu of engines, but only 3 per self-serve plan.

Peec AI Starter is $95/month for 50 prompts, 3 models, 1 project and unlimited users. You choose from ChatGPT, AI Mode, AI Overviews, Gemini, Perplexity and Claude, among others. Extra models cost $30/month on Starter. Pro is $245 for 150 prompts, and Enterprise opens up to 13 models. Copilot is not listed.

Best for: SEO teams that know which 3 engines matter. Starting at: from $95/month.

7. Promptwatch: four models per plan plus content agents

Verdict: four chosen engines on every plan, with answer-gap analysis and AI writing agents.

Promptwatch Essential is $95/month for 1 project, 4 models, 50 prompts and 6,000 responses. Its engine list includes ChatGPT, Perplexity, AI Overviews, AI Mode, Claude, Gemini, Meta Llama, DeepSeek and Grok. Copilot is not listed. Professional is $245 and Business is $579.

Best for: marketers who want tracking and content agents together. Starting at: from $95/month.

8. Otterly.ai: cheapest start, engines sold separately

Verdict: four engines included at $29/month, with three more as add-ons.

Otterly Lite is $29/month for 15 prompts across ChatGPT, AI Overviews, Perplexity and Copilot. Gemini, Claude and AI Mode are paid add-ons. Standard is $189 for 100 prompts. Fifteen prompts is enough for a pilot, not a full programme.

Best for: small teams testing the channel. Starting at: from $29/month.

9. Semrush AI Visibility: five engines inside the Semrush suite

Verdict: good Google and ChatGPT coverage, no Copilot or Claude.

Semrush folded AI visibility into its SEO plus AI Search bundles. Starter is $199/month for 50 prompts tracked daily on one domain, covering ChatGPT, Perplexity, Gemini, AI Mode and AI Overviews. Pro+ is $299 for 100 prompts and Advanced is $549 for 200. Copilot and Claude are not listed.

Best for: teams already running SEO in Semrush. Starting at: from $199/month.

Which engines should your AEO tool cover?

Choose engines by where your buyers ask questions, not by the longest list. Ask your sales team and customers which assistants they use, then check three things.

• Core three first: ChatGPT, Gemini and Google AI Mode or AI Overviews cover most consumer and B2B research.
• Add Perplexity for research-heavy buyers: it is included on LLMrefs, Trakkr and Ahrefs, and an add-on at Listable Labs.
• Add Copilot for Microsoft-centric enterprises: it is on Otterly.ai, Ahrefs and LLMrefs.
• Add Claude only when your audience is technical: it is included on LLMrefs, Trakkr, Peec AI pick and Promptwatch pick.

More engines also mean more answers to store, which is why vendors cap models or charge per engine.

How to choose by engine coverage

• Confirm included versus add-on: compare the engine-adjusted price, not the headline price.
• Check model caps: Peec AI allows 3 and Promptwatch 4 models, so choose carefully.
• Match prompts to engines: 50 prompts across 3 engines is 150 checks per refresh.
• Demand citation data: coverage without source URLs shows who is winning but not why.
• Look for actions: if no one will write content, pick a tool with built-in drafting.
• Verify crawl access: run the free AI Crawlability Checker so engines can read the pages you want cited.

Final verdict: which AEO tool should you choose?

Pick LLMrefs or Trakkr if the widest engine list matters most, Profound if you are an enterprise, and Listable Labs if ChatGPT, Gemini and Google AI Mode are your priority and you want citations and content actions in the same product. For more rankings, see our guides to the best answer engine optimization tools for 2026 and AEO platforms, or start free with Listable Labs.