Fractional versus full-time: the real cost of an AI hire

A $200k salary, months of recruiting, and ramp time — weighed against senior engineering delivered in weeks. The economics for small and mid-sized businesses.

Pyrphoros Group
Apr 2026 · 4 min
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The question comes up in nearly every first conversation we have with a prospective client: should we hire a full-time AI engineer, or should we engage a firm like yours?

The honest answer is that it depends on your situation. But the maths is worth doing explicitly, because the true cost of a full-time hire is consistently underestimated.

The real cost of hiring

A senior AI engineer in 2026 commands a base salary north of $200,000. Add benefits, equity, recruiting fees, and the opportunity cost of the months it takes to find and close a good candidate, and the all-in first-year cost approaches $300,000.

Then there is ramp time. Even an excellent engineer needs weeks to understand your business, your data, and your existing systems before they are productive. And if the hire doesn't work out — which happens more often than anyone admits — you start the clock again.

When fractional makes sense

If you have a defined project — a prototype that needs production engineering, a system that needs evaluation suites, an architecture that needs data infrastructure — fractional engagement gets senior hands on the work in days, not months.

You pay for the engineering you need, when you need it, at a predictable price. There is no recruiting timeline, no ramp time, and no long-term commitment if the work is done.

The question isn't whether you need AI engineering. It's whether you need it forty hours a week, fifty-two weeks a year.

When full-time makes sense

If AI is your core product — if your business is building AI systems for others — then a full-time team is the right investment. The ongoing depth and institutional knowledge justify the cost.

For most small and mid-sized businesses, though, AI is a capability that supports the core business, not the business itself. The engineering needs are real but bounded. Fractional engagement matches the shape of the work.

Pyrphoros Group
We are a specialist consultancy that takes working AI prototypes to production for small and mid-sized businesses.

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