
GEO Services Pricing in 2026: 3 Models Compared, from Retainer to Outcome-Based
Retainer, project and outcome-based pricing each suit a different GEO engagement. Here is how the three models work, what they cost to run, and when each one fits.

Retainer, project and outcome-based pricing each suit a different GEO engagement. Here is how the three models work, what they cost to run, and when each one fits.

Answer engine optimisation and generative engine optimisation began as different disciplines and have converged. Here is the real distinction in 2026 and how to spot a mis-sell.

A repeatable 10-step method for auditing how visible a site is across ChatGPT, Perplexity and Gemini, with a query template, a scoring rubric and a worked scorecard.

Most AI SEO case studies prove nothing. This template sets out the six proof points a credible case file must contain, from baseline data to an attribution method.

Ranking in ChatGPT means being cited inside its answers, not holding a link. Here are the seven proven GEO tactics that lift AI citations, with the research.

AI citation rates swing day to day, so naive before-and-after tests mislead. Here is a 6-step statistical framework for sample size, control groups and significance.

We assessed 23 UK AI SEO and GEO agencies against a 5-question RFP filter testing non-fakeable capabilities. Only 6 passed all five. The filter cuts a typical long-list by two-thirds.

We synthesised public ChatGPT prompt-leak reporting, peer-reviewed retrieval research and our 50-query AiBoost behaviour test into a single 14-factor map with confidence scores. 5 high-confidence, 6 medium, 3 low.

We mapped 12 ranking signals against classic SEO and generative engine optimisation. 5 transfer cleanly, 4 do not, and 3 flip. Anchored to Ahrefs 2025, Profound 2025, arXiv 2024 and AiBoost UK panels.

We A/B tested two identical UK pages, one with FAQPage and Article schema, one without, across 30 buyer-intent prompts on ChatGPT browsing mode. The schema variant was cited 2.35x more often. Full ablation data.
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