AI leadership without a full-time hire.
And the build behind it.
A fractional chief AI officer is a part-time executive who sets AI strategy, governance, and priorities for a company that does not need a full-time one. A company can hire a fractional chief AI officer, hire a full-time one, or work with an AI partner that also builds the workflows.
Four jobs a fractional chief AI officer owns
The executive works a set number of days each month and carries four jobs.
- 01Strategy and priorities.The executive picks the few AI efforts that move revenue, profit, or predictability, and sets the rest aside.
- 02Governance and risk.The executive decides who may use which data and which tools, and keeps a record. An AI governance framework for a revenue team fits on one card.
- 03Vendors and tools.The executive judges which tools to buy and which to skip, so the stack stays small.
- 04Change and training.The executive brings the leadership team along and decides how employees learn the new work. AI Fluency is one way to train them.
What to compare when you choose a fractional executive, a full-time hire, or a partner
Score each path on the same five criteria. The first two columns describe each role in general. The third column describes how Greenfield works.
| Criterion | Fractional chief AI officer | Full-time chief AI officer | AI partner (Greenfield) |
|---|---|---|---|
| Time to first result | A strategy and a priority list. The build waits for your engineers or another vendor. | Recruiting and onboarding come first, then a plan, then the build. | A working prototype in week 1 and a live workflow by day 30. |
| Who owns it | Your team owns the plan and carries it out. The executive decides on a set number of days. | Your company owns the function, the team, and the work. | Your company owns the workflows, prompts, documentation, and results. |
| Data access | The executive sets the rules for access. Your engineers or your vendors apply them. | The executive and your security team decide together. | Greenfield builds inside your systems, with access scoped to the workflow. |
| Cost model | A monthly retainer for a set number of days. | Salary, bonus, equity, and the team the role needs. | A scoped retainer or a defined project, priced before the prototype. |
| Review | The executive reports on a calendar you agree at the start. | Your CEO reviews the executive, as with any other leader. | Every agent is reviewed at 30, 60, and 90 days against one metric. |
The paths combine. A company with no AI owner can start with a fractional executive for the strategy and use a partner for the first build. A company with a growing AI program can hire a full-time executive when the work needs a daily owner.
Greenfield’s AI Roadmap covers the strategy and the order of work. Agentic Workflows covers the build.
Three situations, and the path that fits each
Find your situation in the list. Each one is an example, so match the pattern and ignore the details.
Illustrative // Anonymized
- 01No one owns AI, and the board wants a plan. Fractional.The company needs a decision-maker a few days a month. A full-time salary would come too early.
- 02Pilots are approved and no one is building. Partner.The company has its priorities and needs working software inside its CRM and help desk.
- 03AI runs across sales, operations, and product, with a team of engineers. Full-time.The work needs a daily owner, so the role earns a seat on the leadership team.
Questions about a fractional chief AI officer
How is a fractional chief AI officer different from an AI consultant?
A fractional chief AI officer holds the executive seat and makes decisions for a few days each month. An AI consultant or partner delivers a defined piece of work, such as a roadmap or a built workflow. Greenfield does the second kind, and the Offerings page lists it.
When does a company need a full-time chief AI officer?
A company needs one when AI work spans sales, operations, and product and needs a daily owner. Until then, a part-time executive or a partner carries the work without a full-time salary.
What does a fractional chief AI officer cost?
Firms usually quote a monthly retainer tied to the days each month. Quotes vary by firm and by scope, so ask for the days, the deliverables, and the review dates in writing. Greenfield quotes its own work before the prototype exists, and the Offerings page has the terms.
What should a chief AI officer own first?
One number, one owner for each agent, and one record of what runs where. Start with the number, then choose the first workflow. The AI Roadmap shows how Greenfield picks it.