Short answer: in the UK, independent AI consultants typically charge roughly £500 to £2,000 a day. Mid-tier consultancies charge about £900 to £1,600 a day, and large management consultancies charge £2,000 to £5,000 a day, often with minimum project fees from £100,000. A full project from a mid-tier firm therefore often lands in the tens of thousands of pounds. These are 2026 published UK figures; US figures are shown separately below.
Key facts
- Independent consultants: about £500 to £2,000 a day. London independents cluster around £700 to £1,200.
- Boutique specialist firms: about £1,200 to £2,500 a day for deep sector or domain expertise.
- Mid-tier consultancies: about £900 to £1,600 a day for a build with a small team.
- Big Four and large management firms: £2,000 to £5,000 a day, with minimum project fees often from £100,000.
What UK AI consultants charge by provider type
| Provider type | Day rate (2026) | Best for | Avoid if |
|---|---|---|---|
| Independent or freelance consultant | £500 to £2,000 | A focused audit, a second opinion or one specialist skill | You need a delivery team and ongoing accountability |
| Boutique specialist firm | £1,200 to £2,500 | Deep domain expertise on a defined build | Budget is tight and the scope is exploratory |
| Mid-tier consultancy | £900 to £1,600 | A full build with a small team and a named owner | You only need a few days of advice |
| Big Four or large management firm | £2,000 to £5,000 (projects often from £100,000) | Board-level change programmes and procurement cover | You are mid-market and want hands-on delivery |
What a project costs
A mid-tier delivery project at these day rates typically costs about £13,500 to £40,000. That is calculated from the day rates above, not a quoted price. Big Four and large firms often set minimum project fees from £100,000.
Why the day rate is only part of the bill
Most of the cost is people, and seniority varies a lot. A junior analyst and a senior architect can both be called AI consultants, and their day rates can differ by a factor of five or more. The second factor is the number of days. The third is the commercial model: who carries the risk if the work runs over.
A useful check is to ask for the blended day rate and the estimated number of days, not only a project total. A £40,000 project at £2,000 a day is twenty days of senior time. The same £40,000 at £800 a day is fifty days of more junior work.
What drives the cost
- Scope: a two-day audit costs far less than a multi-month build.
- Data readiness: messy or missing data adds time before any AI work starts.
- Integrations: each system to connect adds cost.
- Compliance: regulated sectors need more review and documentation.
- Change management: training and adoption take time that is often underestimated.
Public sector benchmarks
Published UK government rate cards give another reference point. On those cards, a level 7 partner is listed at £2,450 a day at Deloitte and £2,855 at KPMG, and a level 4 consultant at £1,650 and £1,625. These are framework rates for public contracts, not typical small-business quotes.
US benchmarks for comparison
US figures are in dollars and vary by source. Typical examples from 2026 guides:
- Most small-business AI projects cost $5,000 to $25,000, or $150 to $350 an hour. One guide says most small businesses pay $10,000 to $15,000 for a complete project lasting four to six weeks.
- Monthly retainers for ongoing, phased work run about $2,000 to $8,000 a month.
- Independent senior consultants charge $150 to $400 an hour, or $15,000 to $60,000 for a scoped project. Boutique agencies charge $50,000 to $300,000 for a comparable scope.
- One 2026 guide puts junior AI consultants at $100 to $150 an hour and senior experts at $300 to $500 or more.
- Freelance AI consultants on Upwork typically charge $35 to $60 an hour, with the most experienced above $100 an hour.
These are not UK day rates, so do not compare them directly with the UK figures above.
How to compare quotes
Ask for the blended day rate and the estimated number of days, not just a total. A £40,000 project at £2,000 a day is twenty days of senior time. The same project at £800 a day is fifty days of more junior work, with different results.
Frequently asked questions
How much does an AI consultant charge per day in the UK?
Independent consultants typically charge about £500 to £2,000 a day, mid-tier firms about £900 to £1,600, and large management consultancies £2,000 to £5,000 a day.
How much does a small business pay for an AI consultant?
US guides suggest $10,000 to $15,000 for a complete four-to-six week project, and $5,000 to $25,000 for most small-business projects.
Is a higher day rate always more expensive?
Not necessarily. A senior consultant at a higher day rate can finish the work in fewer days. Compare the blended rate and the number of days.
Do AI consultants charge by the hour or the project?
Both models are used. Some charge a day rate, some a fixed fee for a defined scope, and some a monthly retainer for ongoing work. Retainers, typically $2,000 to $8,000 a month in US guides, suit ongoing support after a launch.
Why are UK and US prices different?
Rates reflect local markets. The UK figures here are day rates in pounds; the US figures are hourly or project rates in dollars, and the two are not directly comparable.
Sources
- Softblues: AI Consulting Costs UK (2026)
- Fulkerson Advisors: AI Consultant Rates in 2026
- Leanware: How Much Does an AI Consultant Cost in 2026?
- AI Essentials: How Much Does an AI Consultant Cost?
- Niko Alho: How to Hire an AI Consultant
- Upwork: Best Freelance AI Consultants for Hire (Oct 2026)
Stuart Cole is an AI and automation consultant based in Cheltenham. If you want a clear view of scope and cost before committing to a day rate, book a free intro call.
