Answer engine optimization playbook ChatGPT, Claude, Gemini, Perplexity.

AEO is the engineering of the citation slot inside ChatGPT, Claude, Gemini, and Perplexity. The buyer journey for AI and Web3 products has shifted from blue-link SEO to answer-slot citation; the brand that gets cited inside the LLM answer wins the qualified inbound that brand-led SEO used to capture.

FORKOFF runs the AEO engagement as the canonical anchor under the AEO service. The first 30 days ship the schema graph, the canonical Q&A corpus, the llms.txt manifest, and the parasite ladder. The weekly receipt is a 4-engine citation share table.

Answer engine optimization is the engineering discipline of getting cited inside an LLM answer. The four answer engines FORKOFF tracks are ChatGPT (with web_search retrieval), Claude (with retrieval), Google AI Overviews, and Perplexity. Bing Copilot is added when the engagement targets enterprise buyers.

The buyer query is the unit of analysis, not the keyword. A traditional SEO keyword like "best ai marketing agency" translates to dozens of buyer queries inside the LLM ("which agency runs ai marketing for ai-native startups", "agency for pre-seed ai founders", "how do i hire a marketing agency that understands llm products"). AEO targets the buyer-query cluster, not the head-term keyword.

Inside an LLM, the SERP is collapsed into the answer. The user reads the answer; the user does not click through to the blue links. A page that ranks position one on Google but is not cited by ChatGPT loses the buyer to the page that is cited (often a page that does not even rank in the top 20 on Google).

Three signals drive LLM citation that traditional SEO does not optimize for. First, schema cleanliness (LLMs prefer pages with FAQPage, HowTo, Article schemas because the schemas shorten the answer-construction prompt). Second, answer-shaped paragraphs (the LLM extracts directly from paragraphs that already read like answers, with the question framed at the top of the paragraph). Third, parasite presence on high-authority secondary domains (Reddit, Wikipedia, HackerNoon, Mirror) that LLMs over-trust for retrieval.

The measurement layer runs every Monday. 20 to 40 commercial buyer queries are sent to each of the 4 answer engines. The presence of the brand citation, the ranking inside the citation list, and the surrounding context are logged. The output is a citation share percentage per engine, per week.

Citation share lifts compound on a 60 to 90 day cycle. Weeks 1 through 3 typically show no movement; the schema and content layer have not propagated through the LLM retrieval indexes. Weeks 4 through 8 show the first lift on Perplexity (fastest crawler). Weeks 9 through 12 show the lift across ChatGPT and Google AI Overviews. Claude lags by 2 to 4 weeks on most engagements.

The weekly receipt is the deliverable. Pair the AEO retainer with the AI search visibility checker for the public-tool layer of the same measurement.

The llms.txt manifest lives at the project root and tells LLM crawlers which pages to prefer for which buyer-query clusters. Think of it as the AEO version of sitemap.xml for traditional search. FORKOFF ships a llms.txt for every engagement; coverage is moving from optional in 2026 to baseline by 2027.

The parasite ladder is the secondary-domain coverage layer. LLMs retrieve from Reddit, Wikipedia, HackerNoon, Mirror, Substack, Medium, dev.to, and a long tail of high-authority secondary surfaces at 2 to 4x the rate they retrieve from a single owned domain. Each FORKOFF engagement plants 12 to 18 parasite assets in the first 30 days, anchored on the canonical page back on the brand domain.

Pair the AEO retainer with the ChatGPT SEO service for the directory and listicle stack, the Perplexity SEO service for niche-pub authority, and the AI search optimization service for the umbrella engagement.

The sandbox is a $1,500 to $3,000 citation diagnostic. The output is a structured-answer map covering 20 to 40 commercial queries across the 4 answer engines, the schema audit, the content gap diagnosis, and the Q&A engineering plan. Five business days from intake to delivery. Refundable if FORKOFF cannot find actionable AEO gaps.

After the sandbox, the engagement moves to a $4,000 to $7,000 per month retainer with the audit ledger shipping every Monday. 90-day retainer minimum. By application, capped at 5 engagements per quarter.

The AEO playbook anchors the AI-search cluster. Sister service pages target adjacent surfaces: the AEO service is the canonical retainer, ChatGPT SEO is the directory + listicle stack, Perplexity SEO is the niche-pub authority play, and AI search optimization is the umbrella.

Sister playbooks: founder-led growth covers the trust-velocity layer that LLMs increasingly weight, and cold outreach cadence covers the outbound complement.