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TL;DRThe newest zero-CAC channel is being recommended by the LLM. When a buyer asks ChatGPT or Claude “what’s the best tool for X,” you want to be the answer. It’s faster than classic SEO (results in days, not months) and it’s already 5x-ing bootstrapped SaaS — but it’s won the same way: structured, trustworthy, citable content plus mentions where the models crawl.

What it means

  • Also called GEO (generative engine optimization) or AI-SEO: optimizing to be cited inside answer engines (ChatGPT, Claude, Perplexity, Grok, Gemini), not just to rank blue links.
  • It captures the buyer at the final decision step — before any website visit (seo-growth).
  • It’s an extension of seo-growth, not a replacement: the same content and authority signals feed both, but the surface and speed differ.

The argument

It’s already a primary growth driver — sometimes the dominant one.

It’s the fastest “boring marketing” lever — ~72 hours, not 90 days.

  • Florian ranks/gets cited by publishing listicles on Medium + LinkedIn articles (“best X tool for [ICP]” — less competitive), citing his product at the top, plus Reddit/Threads answers. He ranked #1 for “best OpenCore community” and now ChatGPT/Grok cite him — $370K/mo with no website (how-i-grew-a-saas-from-0-to-20k-mrr-7-step-plan).
  • LinkedIn articles and Medium are indexed by Google, which the models read.

What the models actually cite is structured, trustworthy, gap-filling content.

Be reachable from inside the model, too.

The caveat: it rides on the same slow base.

  • There’s no shortcut around being genuinely useful and frequently mentioned. Start the content/Reddit base now so the models have something to cite later (seo-growth).

Do this, not that:

  • Publish “best X for [specific ICP]” listicles on Medium/LinkedIn — not generic high-competition terms.
  • Build a thorough, well-structured help center — LLMs cite documentation, not marketing fluff.
  • Seed honest mentions on Reddit/Threads — third-party citations beat self-promotion.
  • Ship an MCP/agent-accessible surface — don’t assume buyers still visit your website.

seo-growth · content-marketing-flywheel · reddit-marketing · product-led-growth