Strategy
How much does AI consulting cost for a small or medium business?
Day rates, fixed-scope diagnostics and retainers explained, with what an SME should expect to pay for AI consulting and what should be included.
The short answer
For a business of 10 to 250 people, AI consulting usually lands in one of three shapes: a fixed-fee diagnostic from around £500 to £1,500 for a single function, a full operating review of £8,000 to £20,000 over two to three weeks, or an ongoing partnership from roughly £1,500 a month for someone accountable for the systems in production. Day rates of £900 to £1,800 are common in the UK, but a day rate on its own tells you nothing about what you get, so buy a defined deliverable instead.
Key takeaways
- Buy a deliverable, not a day rate. Scope and output decide value, not seniority billing.
- A diagnostic should be cheap enough to say no after, and specific enough to act on.
- A full operating review for an SME is two to three weeks of work, not two to three months.
- Anything priced per seat or per licence is a software sale wearing a consulting jacket.
- Ask what happens after the roadmap. Advice with nobody accountable for delivery is the expensive kind.
Pricing in AI consulting is deliberately opaque, which is unhelpful when you are a 40-person business trying to work out whether £12,000 is a fair number or a fantasy. Here is how the market actually prices, what each tier should contain, and the questions that expose a weak proposal.
The three pricing shapes
| Shape | Typical UK range | What you should get |
|---|---|---|
| Fixed-fee diagnostic | £500 to £1,500 | One function or up to five workflows mapped, ranked and costed. A short written verdict, not a deck. |
| Operating review | £8,000 to £20,000 | Whole-business workflow map, ranked use cases with payback, a costed roadmap and a list of what to leave alone. |
| Ongoing partnership | From £1,500 per month | Someone accountable for what is live: monitoring, fixes, model changes and a monthly report against a baseline. |
Day rates in the UK cluster between £900 and £1,800 for independent specialists, and higher inside larger firms. US rates run meaningfully above that. A day rate is fine as a unit of billing and useless as a unit of buying, because it prices attendance rather than outcome.
What should be inside an operating review
- Interviews with the people doing the work, not only the function leads.
- Volumes and annual hours attached to each recurring task, so ranking is arithmetic rather than opinion.
- Build cost, running cost and human review load estimated per use case.
- A written list of what not to automate, with the reasoning.
- Data, tooling and governance gaps that must close before anything ships.
If the proposal cannot say what artefacts you will hold at the end, the price is unknowable by definition. Our own version of this is described on the AI consulting for SMEs page, including the two to three week shape.
Where budgets get wasted
- Paying for a strategy document nobody is accountable for delivering.
- Running five pilots at once so none of them gets a proper evaluation set.
- Buying licences before building skills, which reliably produces low seat usage and a disappointed board.
- Signing a per-seat platform deal when the real cost driver is usage volume.
- Treating governance as a later phase, then discovering a data restriction after the build.
How the tiers should connect
The tiers work best when each one credits into the next. A diagnostic should be deductible from a full review, and a review should feed a build scope directly rather than being re-priced from scratch. If a supplier charges you again to re-learn your business, that is a commercial choice, not a technical necessity.
The sequence we run is diagnosis, then capability, then build, then operation: AI consulting, AI training for employees, AI agents for business and, where the work is telephone-shaped, AI voice agents.
Questions to ask before you sign
- What exactly do I hold at the end, in files rather than adjectives?
- Who owns the code, prompts, evaluation sets and accounts?
- What is the monthly running cost at my expected volume, and what is the ceiling?
- Is the diagnostic fee credited if I proceed?
- Who is accountable when a live workflow breaks at 4pm on a Friday?
The cheapest AI consulting is the engagement that talks you out of four of your five ideas.
Frequently asked questions
- What is a fair price for AI consulting for a 50-person company?
- A focused diagnostic of one function should sit between £500 and £1,500. A full operating review across the business is typically £8,000 to £20,000 for two to three weeks of work, including interviews, workflow mapping and a costed roadmap. Anything materially above that for a business of this size usually reflects firm overhead rather than extra output.
- Should I pay a day rate or a fixed fee?
- Fixed fee, tied to a defined deliverable. Day rates transfer scope risk to you and give the supplier no incentive to finish. Use day rates only for genuinely open-ended advisory time where you control the agenda.
- Is AI consulting worth it if we have technical people in house?
- Often yes, but for a narrower brief. In-house engineers can build; what they usually lack is comparative view across dozens of similar businesses and the time to map workflows outside their own function. Buy the diagnosis and keep the build internal if that suits you.
- How long before we see a return?
- Where scope is narrow and a single workflow is instrumented from day one, payback in the region of six months is a realistic planning assumption. Broad multi-workflow rollouts take longer and frequently fail to produce a measurable baseline at all.
Work through this with us
brep runs AI operating reviews, workforce training and agent deployment for businesses of 10 to 250 people in the UK and US. One diagnosis, one workflow, someone accountable for keeping it working.