Skillaeo and Otterly.AI both help brands navigate AI Engine Optimization, but they approach the problem from opposite ends. Skillaeo is an audit-and-implement platform — you enter a URL, receive a multi-engine visibility score with prioritized fixes, and generate deployment-ready structured data files (Skills Pack) within minutes. Otterly.AI is a monitoring-and-tracking platform — you set up queries and brands, then continuously track how AI engines cite you over time with historical trends and alerting. If you need to diagnose your current AI visibility and take immediate action, Skillaeo gets you there faster. If you need ongoing rank monitoring and trend data across AI search engines, Otterly.AI provides the persistent tracking layer. Many teams use both, because auditing and monitoring serve different — and complementary — stages of the AEO workflow.
Transparency note: This article is published on Skillaeo's blog. We've worked to present both platforms accurately, including areas where Otterly.AI outperforms Skillaeo. We encourage you to evaluate both tools based on your specific needs.
Product Overview
Skillaeo
Skillaeo is a purpose-built AEO platform focused on auditing, scoring, and improving your brand's visibility across AI search engines. The core workflow starts with a free audit: enter any URL, and Skillaeo queries ChatGPT, Perplexity, Claude, Gemini, and Microsoft Copilot to assess how each engine describes your brand. The result is a visibility score from 0 to 100, broken down by citation frequency, sentiment accuracy, and coverage breadth across engines.
The platform's distinguishing feature is Skills Pack generation — the automated creation of llms.txt and agent.json files tailored to your product. These structured data files sit on your domain root and give AI systems machine-readable information about your brand, features, and positioning. For most teams, deploying these files is the single highest-ROI step in their AEO strategy.
Skillaeo is designed for site owners, small teams, and agencies that need fast, actionable AEO insights without lengthy onboarding. The free tier provides unlimited audits with no signup or credit card required. Paid plans add ongoing monitoring, team collaboration, and Skills Pack management. For a broader view of how Skillaeo fits in the tool landscape, see our complete AEO tools review.
Otterly.AI
Otterly.AI is an AI search monitoring platform that tracks how AI engines mention, rank, and recommend brands across a set of configured queries over time. Where Skillaeo starts with "what's your visibility right now and what should you fix?", Otterly.AI starts with "how do AI engines respond to specific queries, and how does that change week over week?"
The platform covers major AI engines including ChatGPT, Perplexity, Google Gemini, and Microsoft Copilot. Users configure a set of target queries — typically brand-related and category-related prompts — and Otterly.AI periodically runs those queries against each AI engine, recording the responses, tracking which brands are cited, and building historical trend data. The dashboards show citation frequency, rank position within AI responses, and week-over-week changes.
Otterly.AI's strength is its alert system. When your brand appears or disappears from AI responses for tracked queries, or when a competitor gains a mention you previously held, the platform notifies you. This early-warning capability is valuable for brands that need to react quickly to shifts in AI perception. Pricing is subscription-based, with plans starting at a mid-tier price point and scaling based on the number of tracked queries and AI engines monitored.
Feature-by-Feature Comparison
The following table compares the two platforms across the dimensions that matter most when choosing an AEO tool. For context on how these features fit into the broader landscape, see our best AEO tools review.
| Feature | Skillaeo | Otterly.AI |
|---|---|---|
| Primary Function | AEO audit + implementation | AI search monitoring + rank tracking |
| AI Engine Coverage | ChatGPT, Perplexity, Claude, Gemini, Microsoft Copilot (5 engines) | ChatGPT, Perplexity, Gemini, Copilot (4 engines) |
| Free Tier | Yes — unlimited audits, no signup required | Limited free plan; full features require paid subscription |
| Skills Pack Generation | Yes — auto-generates llms.txt and agent.json | No |
| Visibility Scoring | 0–100 composite score with per-engine breakdown | Query-level rank tracking and citation presence |
| Ongoing Monitoring | Available on paid plans | Core feature — continuous scheduled tracking |
| Alerting | Basic notifications on paid plans | Robust alerting for citation gains, losses, and competitor changes |
| Historical Trend Data | Growing (newer platform) | Strong — persistent query-level tracking over time |
| Actionable Fix Lists | Yes — prioritized recommendations per audit | Limited — data-focused, not implementation-focused |
| Setup Time | Under 60 seconds for first audit | Requires query configuration, brand setup, and onboarding |
| Reporting | Audit reports with visibility score and recommendations | Dashboard reports with rank trends, citation history, and exports |
| Pricing | Free tier + paid plans starting ~$29/mo | Mid-tier subscription starting ~$49–79/mo depending on plan |
| Ease of Use | Designed for first-time AEO users | Moderate — requires familiarity with query-based monitoring |
| Best For | Audit, implementation, Skills Pack deployment | Ongoing tracking, rank monitoring, alert-driven workflows |
AI Engine Coverage
Skillaeo currently queries five major AI engines: ChatGPT, Perplexity, Claude, Gemini, and Microsoft Copilot. This is the broadest coverage among dedicated AEO audit tools, and it matters because each engine draws from different data sources and retrieval mechanisms. A brand well-cited in ChatGPT may be entirely absent from Claude's responses.
Otterly.AI covers four engines: ChatGPT, Perplexity, Gemini, and Copilot. The coverage is solid for monitoring purposes and captures the engines that handle the majority of AI search traffic. The absence of Claude means one fewer data point, but for most brands, four engines provide a representative tracking picture — especially since Otterly.AI's depth of historical tracking per engine compensates for the narrower spread.
Audit vs. Monitoring
This is the fundamental difference. Skillaeo's audit model is built for point-in-time diagnosis: run an audit, see your score across five engines, receive a ranked list of fixes, and take action. The audit answers "where do I stand right now and what should I do about it?" It's designed for the moment when you need clarity and a path forward.
Otterly.AI's monitoring model is built for continuous observation: configure your queries and brands, then watch how AI responses evolve over days, weeks, and months. It answers "how are AI engines responding to queries relevant to my brand, and how is that changing?" This is more valuable once you've implemented AEO foundations and need to measure impact and detect regressions.
Neither approach is objectively better — they serve different stages of the AEO lifecycle. The audit model gets you to action faster. The monitoring model gives you sustained visibility into trends.
Skills Pack and Structured Data Generation
Skillaeo generates a Skills Pack — a deployment-ready bundle of llms.txt and agent.json files — customized to your product based on your site content, positioning, and competitive landscape. These files provide AI systems with structured, machine-readable context about your brand, dramatically increasing the probability of accurate citation. The complete llms.txt guide and agent.json guide explain why these files matter and how they work.
Otterly.AI does not generate structured data files. It's a monitoring platform, not an implementation tool. If you choose Otterly.AI as your primary AEO tool, you'll need a separate solution for creating and deploying structured data files — either manually or through a platform like Skillaeo.
Alerting and Notifications
Otterly.AI has the clear edge here. Its alert system monitors tracked queries continuously and notifies you when meaningful changes occur: your brand appears in a response where it wasn't before, your brand drops out of a response it previously appeared in, or a competitor gains a citation in your tracked query set. For brands that need to stay responsive to AI perception shifts — particularly in competitive categories — these alerts provide an early-warning system that periodic audits cannot replicate.
Skillaeo offers basic notifications on paid plans when visibility scores change, but alerting is not the platform's core strength. Skillaeo's value is in the audit cycle — detecting issues and providing fixes — rather than real-time alerting on citation changes.
Where Skillaeo Excels
Instant, Free Audits
The ability to enter a URL and get a multi-engine visibility report in under 60 seconds — with no signup, no configuration, and no cost — removes the biggest barrier to getting started with AEO. For teams exploring AI visibility for the first time, agency pitches, or quick competitive checks, this instant audit delivers actionable insights before you've committed any resources. Otterly.AI requires account setup and query configuration before you see your first data point.
Skills Pack Generation
For most websites, the structured data layer is the highest-impact AEO implementation step. AI systems using retrieval-augmented generation pull from your site content — and when that content includes well-structured llms.txt and agent.json files, the probability of accurate, favorable citation increases measurably. Skillaeo automates the creation of these files based on your actual site content, producing deployment-ready output. This bridges the gap between knowing you need structured data and having it ready to deploy.
Actionable Prioritized Recommendations
Each Skillaeo audit produces a ranked list of specific actions: content gaps to fill, structured data to deploy, technical issues to fix, FAQ coverage to expand. The recommendations are ordered by impact, so teams with limited bandwidth can focus on the highest-leverage changes first. Monitoring platforms like Otterly.AI surface trends and data but leave the interpretation and action planning to the user.
Low Barrier to Entry
Between the free tier, no-signup audit flow, sub-60-second time to first result, and recommendations written for non-specialists, Skillaeo is designed for people encountering AEO for the first time. You don't need to understand query configuration, set up tracking dashboards, or define monitoring parameters before getting value. For a complete onboarding path, start with our introduction to AEO and follow the AEO audit checklist.
Where Otterly.AI Excels
Continuous Rank Monitoring
Otterly.AI's core strength is persistent, scheduled tracking of how AI engines respond to specific queries. This gives you something point-in-time audits cannot: a record of change over time. If an AI engine shifts how it ranks brands in your category — whether due to a model update, competitor optimization, or training data changes — Otterly.AI surfaces the shift. For brands where AI visibility directly impacts pipeline or reputation, continuous monitoring provides a safety net that periodic audits cannot match.
Historical Trend Data
Because Otterly.AI captures responses continuously, it builds a longitudinal dataset of your brand's AI perception. This historical data is irreplaceable — you cannot reconstruct it retroactively. The ability to look back at how your citation frequency, rank position, and competitor relationships have evolved over months allows you to correlate specific optimization actions with outcomes, demonstrate ROI to stakeholders, and identify long-term trends that would be invisible in snapshot data.
Alert-Driven Workflows
Otterly.AI's alert system enables a proactive response model: instead of periodically running audits to check whether anything changed, you receive notifications when it does. For marketing teams managing multiple brands or tracking competitive categories, this reduces the monitoring overhead and ensures nothing slips through the cracks. The alert specificity — distinguishing between citation gains, losses, and competitor movements — makes the notifications actionable rather than noisy.
Query-Level Granularity
Where Skillaeo operates at the brand and URL level ("how visible is your brand across AI engines?"), Otterly.AI operates at the query level ("how does this specific AI engine respond to this specific prompt?"). This granularity is valuable for teams that need to understand not just overall visibility but how individual queries map to AI responses. If you need to know exactly which queries cite your brand and which cite competitors, Otterly.AI's query-centric model provides the detail.
Use Case Scenarios
Solo Founder or Small Team
Recommended: Skillaeo
If you're running a single domain with limited resources, your priority is understanding current visibility and implementing fixes. Skillaeo's free audit gives you that baseline instantly. The Skills Pack generates the structured data files you need without requiring you to learn file formats. The paid plan at ~$29/month adds monitoring as your AEO program matures. At this stage, paying for ongoing query monitoring produces data without the bandwidth to act on it — implementation comes first.
Marketing Team Tracking AI Visibility
Recommended: Otterly.AI
If your team has implemented AEO foundations — structured data deployed, content optimized, initial audit completed — and needs to track performance over time, Otterly.AI's continuous monitoring and alerting provide the data layer you need. The historical trend dashboards and alert system feed directly into performance reviews and strategy sessions. Pair it with periodic Skillaeo audits to catch new implementation gaps as your site evolves.
Agency Managing Multiple Clients
Recommended: Both, at different stages
For client pitches and onboarding, Skillaeo's free audit is the fastest way to demonstrate an AI visibility gap — 60 seconds, no account setup, instant results. For ongoing client reporting, Otterly.AI's historical tracking and alert system provide the continuous measurement layer agencies need for monthly reports. Use Skillaeo for the diagnostic and implementation phase (audit + Skills Pack deployment) and Otterly.AI for the ongoing monitoring and reporting phase.
Competitive Intelligence Focus
Recommended: Otterly.AI with periodic Skillaeo audits
If your primary goal is understanding how competitors are performing in AI search and how the competitive landscape shifts over time, Otterly.AI's query-level tracking and historical data give you the granularity you need. Supplement with periodic Skillaeo audits to benchmark your own implementation status and identify new optimization opportunities. For a deeper dive into competitive tracking tools, see our comparison with Profound, which offers another approach to competitive AI intelligence.
Can You Use Both?
Yes, and the combination covers the full AEO lifecycle more effectively than either tool alone. Skillaeo and Otterly.AI address different stages with minimal overlap:
- Audit and diagnose with Skillaeo — understand your current AI visibility across five engines, identify gaps, and get a prioritized fix list.
- Implement with Skillaeo's Skills Pack — deploy
llms.txtandagent.jsonfiles, optimize content based on audit recommendations, and follow the AEO audit checklist. - Monitor and track with Otterly.AI — set up your target queries, configure alerts, and begin collecting historical data on how AI engines respond to queries in your category.
- Re-audit periodically with Skillaeo — as your site evolves and AI models update, fresh audits catch implementation gaps that monitoring data alone might not reveal.
- React to alerts from Otterly.AI — when citations shift or competitors gain visibility, investigate with a targeted Skillaeo audit and implement fixes.
The combined workflow gives you Skillaeo's action-orientation and Otterly.AI's persistent tracking. The total cost for a small team would be approximately $80–110/month (Skillaeo paid plan + Otterly.AI starter), which is comparable to a single mid-tier SEO tool subscription.
If budget is constrained, start with Skillaeo's free tier to implement the foundations, then add Otterly.AI when you have something meaningful to monitor. The implementation step has to come first regardless — tracking visibility you haven't yet optimized produces data without progress.
Frequently Asked Questions
Is Otterly.AI a direct competitor to Skillaeo?
Partially. Both tools operate in the AEO space, but they solve different problems. Skillaeo is an audit-and-implementation platform — it diagnoses your AI visibility and generates the structured data files you need to improve it. Otterly.AI is a monitoring-and-tracking platform — it continuously observes how AI engines respond to queries and alerts you to changes. They compete on overlap areas like basic visibility checking, but their core value propositions are distinct and complementary.
Can Otterly.AI generate llms.txt or agent.json files?
No. Otterly.AI is a monitoring platform focused on tracking AI engine responses to configured queries. It does not generate structured data files, provide implementation recommendations, or produce deployment-ready assets. If you use Otterly.AI as your primary AEO tool, you'll need a separate solution for structured data creation. Our guides on llms.txt and agent.json walk through the file formats if you prefer to create them manually.
Does Skillaeo offer the same depth of ongoing monitoring as Otterly.AI?
Not at the same depth. Skillaeo's paid plans include scheduled monitoring and visibility score tracking, but the platform's primary strength is the audit-and-implement cycle rather than persistent query-level monitoring. Otterly.AI's monitoring is more granular — tracking specific queries across multiple AI engines with historical trend data and proactive alerting. If continuous monitoring is your core requirement, Otterly.AI has the deeper capability.
Which tool is better for someone completely new to AEO?
Skillaeo is the easier starting point. The free audit requires no setup, no AEO knowledge, and no account creation — enter a URL and receive results in under 60 seconds. The recommendations are written for non-specialists, and the Skills Pack generation handles the most technical implementation step automatically. For a complete beginner's guide, start with our introduction to AEO and follow the AEO audit checklist.
What if I only have budget for one tool?
If you haven't implemented AEO foundations (structured data files, content optimization, initial audit), choose Skillaeo — the free tier alone gives you the audit and implementation path. If those foundations are already in place and your primary need is ongoing measurement and alerting, choose Otterly.AI. The decision depends on where you are in the AEO lifecycle: implementation phase favors Skillaeo, measurement phase favors Otterly.AI. For more context on choosing between AEO tools, see our complete tools comparison.
The Bottom Line
Skillaeo and Otterly.AI represent two valid approaches to the same challenge: ensuring your brand is visible in AI-powered search. Skillaeo is the action-oriented audit and implementation platform — it tells you where you stand, what to fix, and generates the files you need to deploy. Otterly.AI is the persistent monitoring platform — it tracks how AI engines respond to relevant queries over time and alerts you when things change.
For most teams, the optimal path is to start with Skillaeo's free audit to establish a baseline and implement structured data foundations, then layer in Otterly.AI's monitoring once there's meaningful progress to track. But the right choice depends on your stage, budget, and whether your immediate need is diagnosis or observation.
Ready to see how your site performs in AI search? Start with a free Skillaeo audit — no signup required.