Erlin

Erlin is an AI search visibility platform that tracks how your brand is mentioned and cited across ChatGPT, Gemini, Claude and Perplexity, benchmarks competitors, and turns prompt research into content and GEO recommendations for AI-era search.

What is Erlin?

Erlin positions itself as the 'AI Search Operating System' — a GEO/AEO platform that treats ChatGPT, Gemini, Claude and Perplexity as the new search results pages. You connect your brand and it continuously tracks how often and in what context your name appears across those LLMs, scoring mentions, citations, sentiment and share of voice against competitors. The platform is built around three layers: Insights (AI visibility, prompt and keyword performance, GA/GSC traffic attribution, and citations sourced from Reddit and YouTube in one dashboard), Opportunities (AI-flagged gaps in content, entities and coverage, plus high-value prompts you're missing), and an Action Center that turns those opportunities into tracked team tasks and auto-generates briefs, outlines and drafts in your brand voice. It was founded in 2025, is headquartered in New York, and per the Prime Club due-diligence report is bootstrapped with a 12-person team and roughly $487K in ARR. Integrations cover GA4, Google Search Console and Slack daily reports, with BYOK (bring-your-own-LLM-key) and API access on Pro tiers. It's not yet in any directory — TrustRadius returns nothing and there are no TrustRadius, G2 or Capterra reviews, so all feature and traction claims are vendor-sourced. A lifetime deal launched about two months ago via Prime Club (the 'Black Edition' deal), with entry pricing of $69 one-time against a regular subscription starting at $47/month.

Key Features

• AI Visibility Tracking — monitor how often and in what context your brand is mentioned and cited across ChatGPT, Gemini, Claude and Perplexity.
• Prompt Research — surface the real questions and intent patterns buyers type into AI engines and map them to content opportunities.
• Share of Voice & Sentiment — see what share of AI answers your brand owns versus competitors, and whether the tone around it is positive or negative.
• Competitor Benchmarking — spot where rival brands win AI visibility that you're missing, across every tracked LLM.
• Content Gap Analysis — AI flags gaps in your pages, entities and coverage and prioritizes the highest-impact quick wins.
• Action Center — turn opportunities into tracked team tasks and generate briefs, outlines and drafts that stay in your brand voice.
• Integrations — connect GA4 and Google Search Console for traffic attribution and receive daily brand-visibility reports in Slack.
• BYOK & API Access — bring your own LLM API key to cut credit burn, with custom reporting and API access on Pro plans.

Who is it for?

• SEO and GEO specialists who want to prove AI-search visibility with real citation and mention data instead of gut feel.
• Marketing and growth teams tracking how campaigns move brand presence in ChatGPT, Perplexity, Gemini and Claude.
• Agencies adding AI visibility as a billable service, especially on the Pro XL tier with 10 client sub-accounts.
• Content teams that want prompt research feeding briefs, outlines and drafts rather than just a static dashboard.
• Brand managers worried about what AI models say about their product and how they stack up against competitors.

Who is it NOT for?

• Anyone who doesn't care about AI search yet — it adds no value if you still only optimize for Google.
• Solo users on a budget who need real depth: the $69 entry tier only tracks 30 prompts/month across two LLMs.
• Teams that want proven, review-backed software — there are no TrustRadius, G2 or Capterra reviews to vet it against.
• Buyers allergic to credit and prompt caps — tracking volume is metered on every tier and extra credits cost more.
• Enterprises that need SLAs, compliance attestations or a long track record.