Meta Ad Library vs Otterly.AI in 2026: First-party Meta creative search vs AI-answer visibility monitoring
Meta Ad Library is Meta’s free public record for live ads and defined transparency archives. Otterly.AI tracks brand mentions, answer position, citations, and GEO opportunities across AI answers from $29 monthly. The overlap is visibility, not the underlying evidence.
Meta Ad Library lets users search ads currently running across Meta technologies by keyword or advertiser.
Otterly.AI tracks ChatGPT, Google AI Overviews, Perplexity, and Microsoft Copilot as base coverage, with Gemini, Google AI Mode, and Claude as paid add-ons.
Meta retains seven years of social-issue, election, and political ads, while EU and specified UK records have stated one-year history.
Otterly Lite is $29 monthly for 15 prompts and one workspace; API and MCP begin on Standard at $189 monthly.
Meta’s Report and API have defined political, issue, UK, and EU scopes, rather than a universal historical archive of commercial campaigns.
Otterly includes a GEO audit, citation link analysis, domain ranking, and answer-ranking monitoring.
Start with Meta Ad Library when someone asks what an advertiser is running on Facebook or Instagram right now. It is the first-party public search surface for live Meta ads, with special retention and reporting paths for political, issue, EU, UK, and branded-content records. Start with Otterly.AI when the question is whether a brand appears or is cited in generated AI answers, and what content gap may improve that visibility. Otterly is not an ad archive and Meta Ad Library is not a GEO monitoring suite. Meta publishes the core library at no subscription cost, while Otterly Lite starts at $29 monthly for 15 prompts and four base engines. They can complement one another in a broader research process, but neither can establish the other’s result: a live Meta creative does not prove AI citations, and an AI-answer mention does not reveal a Meta campaign’s conversion performance.
The tools at a glance
Meta Ad Library
Meta’s public search library for active ads, transparency history, and paid-partnership content
Meta Ad Library is the primary-source place to check publicly available Meta ad creative. Users choose a location and category, then search currently running ads across Meta technologies by keyword or advertiser. It is particularly valuable when a paid-social strategist needs to validate what is live before treating a third-party database as complete. The result is evidence of what Meta makes public, not access to the advertiser’s conversions, revenue, bid strategy, audience settings, or internal account reporting.
The historical scope needs careful reading. Meta says it retains seven years of social-issue, election, and political ads, plus one year of ads delivered anywhere in the European Union and a stated one-year UK record for ads that ran after July 1, 2025. The Ad Library Report supports exploration and downloads for political and issue-ad data, while the API supports custom searches within published political, issue, UK, and EU rules. Those routes should not be presented as a permanent global archive of every ordinary commercial campaign.
There is no subscription pricing in the reviewed profile. Meta also offers a branded-content search for Facebook and Instagram posts, stories, videos, and reels with paid-partnership disclosures. The limitation is operational: the library does not create a saved team workspace, automated competitor monitoring, creative boards, or a general performance record. Use it as first-party evidence, then move selected findings into the team’s approved research and reporting process.
| Feature |
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Otterly.AI
AI-answer visibility monitoring with GEO audits, citation analysis, and API or MCP access on higher plans
Otterly.AI measures a different surface entirely: whether a brand appears in AI-generated answers and which domains those answers cite. Its base monitoring includes ChatGPT, Google AI Overviews, Perplexity, and Microsoft Copilot. Gemini, Google AI Mode, and Claude are paid add-ons. It tracks answer position as well as appearance, which makes it useful for a content team deciding where a brand is absent, buried, or gaining ground across its monitored AI-answer set.
The GEO audit turns those observations into optimisation guidance, while domain ranking and citation link analysis show which domains AI engines cite around a category. That is useful for prioritising content work, but it does not prove that a citation caused traffic or that a recommendation will persist. Nor does it reveal an advertiser’s current Facebook or Instagram creative. Results are monitored AI-answer evidence, best interpreted alongside the prompts and engines the team has selected.
Lite costs $29 monthly for 15 prompts, one workspace, four base engines, a GEO audit, and citation analysis. Standard costs $189 and Premium $489; API access and MCP integration begin at Standard. Otterly publishes no free tier and no native white-label delivery on Lite, Standard, or Premium. It is a strong entry point for in-house AI visibility monitoring, but agencies needing branded delivery must put exported findings into their own report workflow.
| Feature | Lite $29/mo | Standard $189/mo | Premium $489/mo | Enterprise From €1,000/mo |
|---|---|---|---|---|
| AI models tracked | 4 base, add-ons available | 4 base, add-ons available | 4 base, add-ons available | Contact |
| Prompts | 15 | Contact | Contact | Contact |
| GEO audit and citation analysis | ✓ | ✓ | ✓ | ✓ |
| API and MCP integration | ✗ | ✓ | ✓ | ✓ |
| White label | ✗ | ✗ | ✗ | Contact |
Head-to-head feature comparison
| Feature | ||
|---|---|---|
| Primary evidence | Public Meta ad and transparency record | Monitored AI-answer mentions, positions, and citations |
| Live Meta advertiser or keyword search | Yes | No |
| AI-answer mention and citation tracking | No | Yes |
| Historical special-category records | Yes, defined political, issue, EU, and UK scopes | Not applicable |
| GEO audit | No | Yes |
| API access | Yes, within published scope and onboarding | Standard and above |
| Automated competitor monitoring | No | AI visibility monitoring, not Meta ads |
| Starting price | No published subscription price | $29/mo |
Which should you choose?
The sensible choice is dictated by the source of truth you need. Meta Ad Library is first-party evidence for Meta ad activity and has unusually important transparency history in its specified categories. Otterly.AI is a paid monitoring platform for AI-generated answers, citations, and GEO priorities. Use Meta before paying for a commercial claim about a live Meta ad. Use Otterly when the evidence you need is whether a brand is visible in AI answers. Treating either as a substitute creates a false confidence in the result.
Bottom line
Use Meta Ad Library for a fast, free, first-party check of current Meta creative and for its specifically defined political, issue, EU, UK, and branded-content records. Choose Otterly.AI for a recurring AI visibility programme that needs monitored answer presence, citations, and a GEO audit from $29 monthly. They complement a marketer who needs both paid-social research and AI-search intelligence, but they do not measure the same channel or outcome.
Frequently asked questions
Should I use Meta Ad Library or Otterly.AI to find a competitor’s active Facebook ads?
Meta Ad Library is the right choice for finding a competitor’s active Facebook ads because it is Meta’s public first-party search surface for current ads. Otterly.AI monitors AI-generated answers and citations, not Facebook or Instagram campaign creative.
Can Meta Ad Library show why an AI tool cites a competitor?
Meta Ad Library cannot show why an AI tool cites a competitor because it records Meta advertising and transparency information rather than AI-answer citations. Otterly.AI is the relevant product for monitored citations, domain ranking, and GEO audit recommendations.
Is Meta Ad Library a free replacement for an Otterly.AI subscription?
Meta Ad Library is not a replacement for Otterly.AI because the products observe different evidence: Meta publishes public ad records, while Otterly tracks AI-answer visibility. Meta has no published subscription price, whereas Otterly Lite starts at $29 monthly.
Does Otterly.AI track every AI engine on its $29 Lite plan?
Otterly.AI does not include every listed AI engine in its $29 Lite plan because Lite covers four base engines and Gemini, Google AI Mode, and Claude are paid add-ons. The plan includes 15 prompts, one workspace, a GEO audit, and citation analysis.
How long does Meta Ad Library retain old commercial ads?
Meta Ad Library does not publish an equivalent worldwide permanent history for every ordinary commercial ad. Its stated retained histories are seven years for social-issue, election, and political ads, plus defined one-year EU and UK transparency records.
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