Fractional CAIO · Chief AI officer, part of the week

Fractional chief AI officer · what one does, what one costs, when you need one

A fractional chief AI officer is a CAIO who holds the AI seat for an agreed part of the week, on an ongoing basis, often for more than one company. They decide where the business uses AI and where it does not, set the rules for using it safely and lawfully, and answer to the CEO and board for both, without a full-time appointment.

This page explains the role: the week, the cost, and how a fractional CAIO compares with an interim or full-time one and with a head of AI. To browse fractional CAIO jobs or hire fractional CAIO talent, go to the hub. We recruit fractional, interim, part-time, temporary and permanent technology leaders.

Brief us on an AI leadership hire →See the roles

How a brief runswhat we undertake

01Brief30-MINUTE SCOPING CALLDay 0
02Shortlist of 3–5VETTED · RATE BENCHMARK · IR35After the brief
03InterviewsYOU MEET THE SHORTLISTYour diary
04Scoped startFIRST-MONTH OUTCOMES AGREEDYou set the date
05Fractional, interim and permanentIR35 POSITION SET OUTOn every brief

Shortlist3–5

In the press

Fast Company 16 leaders on when fractional C-suite hires make sense · 24 Jun 2026
Senior leaders disagree on when a fractional C-suite hire makes sense: many back one for a defined mandate, others want a full-time owner for work that needs daily attention. An AI programme with a clear scope is often the first kind.

3–5

Shortlist · with pay or day rate, availability and IR35 set out

Vetting · stages before a candidate reaches you

15 minutes · video or phone

Book 15 minutes to hire a fractional CAIO

Tell us the scope and the days a week. We come back with CAIO candidates, their day rates and availability.

0115 minutes, video or phone
02We scope the role and the days a week
03A shortlist of 3–5 after the call
04Fractional, interim and permanent briefs

Prefer email? Use the booking page →

Pick a day that suits · live availability

Open the booking calendar →

On the board · last 3 months

Fractional chief AI officer jobs on the board

0 Fractional chief AI officer · 9 fractional executive

No Fractional chief AI officer roles on the board in the last three months. Showing fractional executive roles instead.

Browse every role on the board →

Live AI and technology leadership roles

How fractional recruitment agencies compare is set out in one place, including how we work: a CAIO brief and a shortlist of three to five.

01/ the role

What is a fractional chief AI officer?

A fractional chief AI officer is a CAIO engaged for part of the week, on an ongoing basis. “Fractional” describes the days, not the seniority: the person holds the AI seat in full and answers for it to the board, for an agreed number of days rather than five. The fractional CAIO meaning in one line: the whole AI brief, part of the week.

The title is new and not yet settled. In some companies the CAIO runs AI products and the engineers who build them; in others the role is mainly strategy, adoption and governance. A fractional CAIO is usually the second kind: they set the direction and the rules, and the building is done by the engineering team, a head of AI or a supplier. For the permanent seat, see chief AI officer.

CAIO, CTO or chief data officer?

A CTO builds and runs the technology the company sells. A chief data officer owns the data and who may use it, which is most of what an AI system needs; a fractional chief data officer is the part-week version. A CAIO owns the decisions about AI itself: which uses go ahead, which models and suppliers, how they are tested, and who is accountable when one goes wrong. Smaller companies often give one person two of these seats; if the gap is the product’s technology, a fractional CTO may be the better hire.

02/ scope

What a fractional CAIO does, week to week

The first month

An inventory of where AI is already used, officially and unofficially, which suppliers and models are involved, what data each use touches, and what the board wants AI to do for the business. The output is a short AI strategy and policy the leadership team can agree: the uses worth pursuing, the ones to stop, and the rules for everything in between.

Governance and risk

The UK has no single AI law. Government guidance sets out a principles-based framework that existing regulators interpret and apply within their remits, so a CAIO works out which regulators matter for the business. Where AI uses personal data, the ICO’s guidance on AI and data protection covers accountability, impact assessments, transparency and fairness. Companies that want a formal system often use ISO/IEC 42001, the standard for an AI management system.

A typical week

The leadership meeting, reviews of the AI projects in flight against what they were meant to deliver, decisions on new uses and suppliers, and work with legal, security and data on the risks. Days are agreed in the contract and change with the work.

Security and skills

The NCSC’s guidelines for secure AI system development make security a core requirement through design, development, deployment and operation, and a CAIO makes sure suppliers meet them. Companies that sell into the EU also meet Article 4 of the EU AI Act, which asks providers and deployers to support the AI literacy of the staff who use AI systems; training plans often land on the CAIO’s desk.

03/ comparison

Fractional, interim, head of AI or a full-time CAIO

Four ways to give AI a senior owner. They differ in days, length and how hands-on the person is; choose by what the work needs.

Fractional CAIOInterim CAIOHead of AIFull-time CAIO

DaysPart of the weekFull-timeFull-time or part-weekFull-time

LengthOngoing, reviewed as the work changesA fixed term, often one programmeOngoingPermanent

FocusStrategy, policy and governanceDelivering a programme or a resetBuilding: models, data and engineersAll of it, every day

Best forA business that needs AI decisions owned but not a full-time weekA large AI programme, or cover after a departureA business already building AI into its productAI at the centre of the business

Published payDay rate × days, set out per candidateDay rate × days, usually five a weekSet out per candidateSet out per candidate

04/ vetting

How we vet fractional CAIOs

What we undertake on every brief, before a candidate reaches you.

01
Qualification screen
Verify CAIO tenure, sector context and stage fit.
SOURCING
02
Mandate fit
Match to your situation — stage, board dynamics, timing.
MATCHING
03
Reference deep-dive
We take references ourselves, from recent past clients — real outcomes, not titles.
VERIFY
04
Shortlist
Three to five candidates with day rate, availability and IR35 position set out.
SHORTLIST OF 3–5

05/ what it costs

What a fractional CAIO costs and what moves the rate

A fractional CAIO is paid a day rate for the days worked, so the cost is the rate times the days. No source we can verify publishes a chief AI officer day rate or salary today, so we print none rather than guess. The rate moves with how central AI is to the product, how regulated the sector is, whether the person must also build, and how many days the work needs.

We set out each candidate’s day rate on the shortlist, with availability and IR35 position, so you compare real figures for your brief. Our rate calculator turns a day rate and days a week into a monthly figure.

06/ caio vs head of ai

Fractional CAIO vs head of AI deciding, or building

Fractional CAIO vs head of AI comes down to deciding versus building. A fractional CAIO sits with the leadership team, decides where AI is used and on what terms, and answers to the board. A head of AI is usually hands-on: they lead the people who build models and AI features, and report to a CTO or CAIO. Browse fractional head of AI jobs for that tier.

An interim CAIO is different again: full-time for a fixed term, usually to deliver one large programme or to hold the seat after a departure. Many companies start with a fractional CAIO who writes the strategy and the rules, then hire a head of AI to build against them.

07/ when

When to hire a fractional chief AI officer the usual triggers

Companies usually look at when to hire a fractional chief AI officer once AI decisions are being made across the business but nobody senior owns them. The common triggers:

AI is already in use, unmanaged. Staff use AI tools with customer or company data, and there is no policy.

A board or investor asks for an AI strategy. The question is what to do, in what order, and what it will cost.

A customer or regulator asks how AI is governed. An enterprise buyer’s questionnaire, an audit or an EU customer’s contract needs a senior answer.

A large AI purchase or build. A supplier contract or a product feature where a wrong choice is expensive.

The OECD AI Principles, the first intergovernmental standard on AI, are a common starting point for the policy. If the work fills the week, most companies move to a full-time CAIO; we recruit that permanent hire too.

08/ hiring

How to hire one the short version

Write down what the CAIO must deliver in the next twelve months, who they report to, what they can approve or stop, and how many days that takes. Ask candidates for an AI programme they led from decision to use, including one they stopped, and take references from the executives they reported to.

Settle the contract before the start. Where the CAIO works through their own company, the off-payroll working rules (IR35) may apply; status depends on how the engagement runs in practice, and a medium or large client makes the determination (HMRC’s guidance for clients sets out the size tests). Our IR35 guide explains the tests.

To hire fractional CAIO candidates through us, send the brief. We send a shortlist of 3–5, each with day rate or pay, availability and IR35 position set out, after our five-stage vetting.

09/ questions

Fractional chief AI officer FAQ

The questions people ask before bringing in a fractional CAIO.

A chief AI officer who holds the role for part of the week, on an ongoing basis, often for more than one company. They decide where the business uses AI, set the rules for using it safely and lawfully, and answer to the CEO and board.

Maps where AI is already used, writes the AI strategy and policy, decides on new uses and suppliers, works with legal, security and data on the risks, and reports to the board. Building models and features stays with engineers, a head of AI or a supplier.

A fractional CAIO decides where and how AI is used and answers to the board. A head of AI usually leads the people who build it. See fractional head of AI jobs.

When AI is being used or bought across the business and nobody senior owns the decisions: staff using AI tools with company data, a board asking for a strategy, a customer or regulator asking how AI is governed, or a large AI purchase.

Write the brief (outcomes, reporting line, approval rights and days), test candidates on an AI programme they led, take references from the executives they reported to, and settle IR35 before the start. Or send us the brief: we send a shortlist of 3–5.

The day rate times the days. No source we can verify publishes a chief AI officer rate today, so we print none; we set out each candidate’s day rate on the shortlist.

No UK law requires one. The UK relies on existing regulators applying five AI principles within their remits, and the ICO’s guidance applies wherever AI uses personal data. Someone senior still has to own those obligations; in a smaller company that is often a fractional CAIO.

It depends on how the engagement runs in practice, not on the title. In most cases a medium or large client decides the status; for a small client outside the public sector, the worker’s own company decides (HMRC). We set out each candidate’s IR35 position and do not promise an outcome.

Book 15 minutes · shortlist of 3–5

Bring the brief. We architect the team.

A shortlist of 3–5 with day rate, availability and IR35 position set out, after five-stage vetting.

Book a call →Submit a brief