TL;DR: Three options when AI matters but full-time CAIO is overkill: a consultant (advice), an agency (artefact), or a fractional AI officer (ongoing capability). Pick based on whether you need a strategy document, a built artefact, or a capability that keeps compounding.
Category: AI Leadership · Published: 2026-05-19 · Author: Stairway to AI
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Frequently asked
What is the difference between a fractional AI officer and an AI consultant?
Consultants deliver advice (paper). Fractional AI officers embed and ship production AI solutions on an ongoing basis with adoption accountability.
How much does a fractional AI officer cost in Europe?
Retainers range from €3,000 to €20,000 per month. Most engagements run 3-month minimums, often 6 to 12 months.
When should I hire a fractional AI officer versus a full-time CAIO?
Full-time CAIOs make sense above €500M revenue. For 10 to 200 person teams, fractional delivers senior expertise without the €180,000 to €350,000 hire.
Can I use a consultant first and a fractional AI officer afterwards?
Sometimes. Often the fractional officer can absorb the strategic work in month one, making a separate consultant redundant.
Do fractional AI officers work across multiple clients simultaneously?
Yes. Quality practices cap concurrent clients per lead.