Benchmark · updated October 2026

Monthly vs one-time: how the six AI services bill (2026)

Last reviewed: October 2026 · prices in USD · every figure computed from the cost-guide pricing engine

There are four out of six services that offer both one time fees and retainers; Generative Engine Optimization (GEO) and Search Everywhere Optimization only have subscription plans available. In total, there's a total of 22 out of 27 published tiers billed monthly as of October 2026.

Counts and spans below come straight from the published tier tables. The one-time tiers in this dataset are audits and builds; the recurring retainer is where every one of these services prices its ongoing work.

The mix

Monthly vs one-time published tiers per AI service, October 2026
ServiceMonthly tiersOne-time tiersMonthly spanOne-time span
AI Agent for Your Business41$100–$49,500/mo$15,300–$98,500 one-time
Agentic SEO41$50–$26,000/mo$5,000–$41,500 one-time
Answer Engine Optimization (AEO)41$300–$25,000/mo$250–$3,000 one-time
Generative Engine Optimization (GEO)40$10–$60,000/mo—
Agentic Website22$10–$600/mo$2,000–$40,500 one-time
Search Everywhere Optimization40$500–$50,000/mo—

Go deeper: the cost guides behind these numbers

Methodology: ranges are synthesized from published 2026 market pricing across vendors, agencies, and platforms, reviewed and refreshed monthly (last refresh: October 2026). Metro figures apply a cost-of-doing-business index (built from 2026 local cost-of-living and labor data) that we scale per price tier: self-serve tools are priced nationally and barely move between cities, while managed and enterprise work — which is delivered by local labor — carries the full local premium. That is why the same city shifts a done-for-you retainer far more than a DIY subscription. Prices are in USD and describe typical market rates, not quotes; a real quote for your business takes minutes through a verified provider on the hashtag.org network.