Answer Engine Optimization (AEO) is the practice of ensuring your brand appears prominently in AI-generated answers — the responses ChatGPT, Perplexity, Google AI Overviews, and other AI platforms give when someone asks a question relevant to your category.
Unlike traditional SEO, where you rank for a keyword, AEO is about being the recommended brand when a potential customer asks an AI assistant what to buy, which vendor to use, or what tool solves their problem. This requires dedicated AEO tools that track citation rates, share of voice, sentiment, and the sources AI models rely on.
Over $77M was invested in the AEO/GEO tooling sector in 2025 alone. The category has matured rapidly, and the top platforms now offer data quality and actionability that traditional SEO tools weren’t built to provide.
This guide covers the top 5 AEO tools for AI search visibility in 2026, selected for their combination of data depth, platform coverage, and practical usability.
Top 5 AEO tools — Comparison table
| Tool | Starting Price | AI Platforms | Standout Feature | Free Trial |
|---|---|---|---|---|
| Airefs | $24/mo | ChatGPT + others | Source-level citation maps | 7 days |
| Otterly AI | $29/mo | 6 platforms | Gartner Cool Vendor, 4.9/5 G2 | 14 days |
| AthenaHQ | $295/mo | 8 platforms | 10x citation growth case studies | First month 67% off |
| Peec AI | $89/mo | 3 core + add-ons | UI scraping, 115+ languages | 14 days |
| Profound | $99/mo | 10+ platforms | G2 Winter 2026 Leader | Free AEO report |
1. Airefs
Airefs is an AEO platform built around a core insight: to improve your AI search visibility, you need to know which specific sources AI models trust, not just whether you appear. For each tracked prompt, Airefs maps the exact URLs — blog posts, review pages, Reddit threads, forum discussions — that the AI cited when forming its answer.
This source-level transparency is what separates Airefs from monitoring-only tools. If ChatGPT consistently recommends a competitor because of a specific third-party comparison article, Airefs identifies that article. You can then decide whether to get your brand added to it, create a competing piece, or build your own presence in that publication.
Key features
- Source-level citation tracking — exact URLs cited per AI response, per prompt
- Share of voice — your brand vs. competitors across tracked prompts
- Reddit and discussion monitoring — surfaces influential community discussions that drive AI citations
- Multi-model tracking — ChatGPT and other LLMs, multiple countries
- Content and community play recommendations — specific actions to improve AI visibility
- Done-for-you (DFY) option — agency service for teams that want execution alongside data
Pricing
| Plan | Price |
|---|---|
| Lite | $24/mo |
| Pro | $49/mo |
| Expert | $83/mo |
| DFY Agency | From $249/mo |
7-day free trial, no credit card required.
Best for
B2B SaaS brands, startups, and agencies building systematic AEO workflows. The source-level data creates a clear optimization roadmap, and the price point makes it accessible to teams at any stage.
Website: getairefs.com
2. Otterly AI
Otterly AI is the G2 High Performer in the AEO category and a Gartner Cool Vendor in AI Marketing (2025). With 4.9/5 on G2 from 250+ reviews and 20,000+ marketing professionals using the platform across 40+ countries, it’s the most validated AEO tool in the affordable tier.
The platform’s GEO Audit feature — which scores your site on 25+ on-page factors that influence AI citation likelihood — is particularly useful for teams early in their AEO journey. It moves from “your AI visibility is low” to “here are the specific technical and content gaps causing it.”
Key features
- 6-engine tracking — ChatGPT, AI Overviews, AI Mode, Perplexity, Gemini, Copilot
- GEO Audit — 25+ on-page factors analyzed for AI readiness
- Sentiment and position tracking — positive/neutral/negative brand mentions with position data
- Competitor benchmarking and share of voice — track share relative to named competitors
- LLM intent detection — understand which query types are most likely to surface brand recommendations
- Prompt library and keyword clustering — organize tracking around topic clusters
- Automated weekly reports — regular digests without manual data pulls
Stats
- 95% of customers see measurable insights within their first month
- 4.9/5 G2 rating (250+ reviews)
- Gartner Cool Vendor 2025 (AI in Marketing)
- G2 High Performer (AEO category)
Pricing
| Plan | Price |
|---|---|
| Starter | $29/mo |
| Growth | $189/mo |
| Business | $489/mo |
| Enterprise | Custom |
14-day free trial. Add-ons for AI Mode & Gemini: $9-149/mo.
Best for
SMBs and mid-market teams that want broad platform coverage, strong third-party validation, and a clear audit-driven improvement framework — all without an enterprise budget.
Website: otterly.ai
3. AthenaHQ
AthenaHQ’s case study results are the best documented in the AEO category. Rootly achieved ~10x citation rate growth and $126K in incremental media value. Lago increased AI-driven demos by 50% and grew AI Overview impressions from 3% to 33%. Gruns improved share of voice from 2.0% to 12.6% in 60 days.
Built by a team from Google and DeepMind, backed by Y Combinator, with advisors from OpenAI and Anthropic, AthenaHQ brings research-grade methodology to AEO. Its AI blindspot detection identifies where your brand should be mentioned but isn’t — a proactive approach most platforms don’t offer.
Key features
- 8-platform tracking — ChatGPT, Perplexity, Google AI Overviews, AI Mode, Gemini, Claude, Copilot, Grok
- On and off-page GEO analysis — content gaps + external citation opportunities
- AI blindspot detection — identifies where competitors appear but your brand doesn’t
- Impersonation detection — alerts when AI misattributes content to your brand
- Citation intelligence — detailed breakdown of which sources drive your AI visibility
- Content optimization AI agent — Enterprise Deep Research agent for GEO content briefs
- Unlimited seats + RBAC — all plans, no per-user cost
Case study highlights
| Customer | Result |
|---|---|
| Rootly | 10x citation rate growth, +126% non-branded mentions, $126K incremental media value |
| Lago | +50% AI-driven demos, AI Overview impressions 3% → 33%, citation rate 3.5% → 17% |
| Gruns | Share of voice 2% → 12.6% in 60 days, brand mentions 4% → 25%, citation rate 23x |
Pricing
| Plan | Price |
|---|---|
| Self-Serve | $295/mo ($95/mo annual) |
| Enterprise | Custom |
First month 67% off on Self-Serve. Integrations: GA4, Google Search Console, Shopify, Webflow.
Best for
Growth-stage B2B companies that want proven results and are willing to invest $95-295/mo in AEO tracking. The case studies provide concrete ROI benchmarks to evaluate against.
Website: athenahq.ai
4. Peec AI
Peec AI achieved EUR 650K ARR within 4 months of launch, raised $30M+ at a $100M+ valuation, and built an enterprise customer base (Wix, Glide, Merge) that saw 5x YoY increases in LLM-driven traffic. The platform’s technical differentiation is UI scraping: Peec AI simulates real user interactions rather than calling AI APIs directly, which produces results that match what actual users see.
With 115+ language support and daily tracking of core platforms, Peec AI is particularly strong for global brands that need multi-language AEO visibility. The per-platform add-on model (EUR 20-30/month each for Claude, Gemini, etc.) keeps entry costs low while allowing expansion.
Key features
- UI scraping technology — matches real user AI experience, not API-proxied results
- Daily tracking — ChatGPT, Perplexity, and AI Overviews on all plans
- 115+ language support — broadest language coverage in the category
- Brand visibility percentage metrics — standardized share of voice measurement
- Competitor benchmarking with regional breakdowns — geographic visibility comparison
- Citation and source tracking — external domains AI cites alongside your brand
Customer results
| Customer | Result |
|---|---|
| Wix | 5x YoY increase in LLM traffic and demo requests |
| Glide | Blog posts ranking in ChatGPT/Perplexity within 24 hours |
| Merge | 5x YoY increase in LLM-driven demo requests |
Pricing
Starting at $89/mo. Additional platforms: EUR 20-30/month each. 14-day free trial.
Best for
Global brands with non-English markets that need accurate (UI-scraped rather than API-based) tracking. The 5x case studies from Wix and Merge are strong validation for B2B SaaS buyers.
Website: peec.ai
5. Profound
Profound is the G2 Winter 2026 Leader in the AEO category, backed by $58.5M from Khosla Ventures, Kleiner Perkins, NVIDIA, and Sequoia. Its enterprise customer roster (MongoDB, Ramp, Figma, DocuSign, Zapier, Indeed, Chime) is the strongest in the market, and its case study from Ramp — 7x AI visibility increase — is widely cited in AEO marketing.
The platform’s unique Prompt Volumes feature provides actual data on how often users query AI about specific topics — equivalent to keyword search volume, but for AI search. This is unavailable in most competing tools and is valuable for content prioritization.
Key features
- 10+ AI platform tracking — ChatGPT, Perplexity, Claude, Gemini, Grok, Copilot, Meta AI, DeepSeek, Google AI Overviews, ChatGPT Shopping
- Prompt Volumes — AI search volume data to prioritize high-opportunity topics
- AI Shopping visibility — track ChatGPT Shopping product recommendations (unique feature)
- Share of voice and citation tracking — competitive visibility across all platforms
- Agents module — AI-optimized content creation (listicles, how-tos, comparisons) with human review
- Daily data refresh — all plans updated automatically
Pricing
| Plan | Price | Includes |
|---|---|---|
| Starter | $99/mo | ChatGPT only, 50 prompts |
| Growth | $399/mo | ChatGPT, Perplexity, AI Overviews, 100 prompts, content generation |
| Enterprise | Custom | All 10+ platforms, full features, API |
Free AEO report available (no trial for paid features).
Best for
Enterprise marketing teams with significant AEO budgets who want the market-leading platform and the deepest data. The Starter plan’s limitation (ChatGPT only, 50 prompts) means meaningful use starts at the Growth tier ($399/mo).
Website: tryprofound.com
Choosing the right AEO tool
Budget under $50/month — Start with Airefs ($24/mo) or Otterly AI ($29/mo). Both provide genuine, actionable AEO data with free trials.
Budget $89-$99/month — Peec AI for global/multi-language brands; Profound for teams that need ChatGPT-only tracking with a free AEO report first.
Budget $295+/month — AthenaHQ if you want documented case study methodology and YC-grade data; Profound Growth ($399/mo) for the broadest enterprise platform coverage.
Key questions to ask any AEO tool:
- What AI platforms does your entry plan actually cover?
- Does your data come from API calls or real user simulation?
- Can I see the sources the AI cites, or just whether I appear?
- What’s the data refresh frequency?
Related reading:
Airefs helps you track and improve your AEO — starting with the exact sources that influence every AI recommendation. Start your free 7-day trial — no credit card required.