Illustrative cost

£8,000 to £29,000 ex VAT

Typical
£15,000
Duration
About 7 weeks
Effort
18 to 38 days

Illustrative estimate, not a quote. Real prices vary.

Worked out from UK freelance contractor day rates in job adverts, with no consultancy or agency margin added. Consultancies and agencies usually charge more.

Source: IT Jobs Watch. Rates read on ; costs computed on .

What is included

  • Review of the current marketing and sales process and tools
  • Prompt templates and a style guide for drafted content
  • Lead capture, scoring and routing automations
  • CRM updates and reporting

Deliverables

  • Working automations
  • Prompt library and style guide
  • Handover documentation

Assumptions

  • An existing CRM and email platform with an API
  • Off-the-shelf automation tools rather than custom code
  • Content is approved by a person before it is sent

Not included

  • Paid media management
  • A new CRM
  • Tool subscriptions

Project plan

Phases run one after another, about 7 weeks in all.

Phases, their length and main tasks
PhaseWeeksMain tasks
Discovery1Map the funnel and tools; Agree what to automate first
Design1Design flows; Approval steps
Build automations3Lead routing and scoring; CRM sync; Reporting
Content prompts1Voice and style guide; Prompt templates; Quality checks
Test and handover1End-to-end tests; Training

Who does the work

Person-days per role in each phase, low and high effort.

Days by phase and role
PhaseRoleDays (low to high)
DiscoveryBusiness analyst2 to 5.5 days
DesignAI consultant2 to 3.5 days
DesignUX designer1 to 2 days
Build automationsAI engineer7 to 14.5 days
Content promptsGenerative AI (LLM) engineer2 to 5.5 days
Test and handoverTest engineer2 to 3.5 days
Test and handoverAI engineer2 to 3.5 days

How the cost adds up

Cost by role: low, typical and high, before rounding
RoleLow (days × 25th percentile)Typical (days × median)High (days × 90th percentile)
Business analyst2 × £425 = £8503.75 × £500 = £1,8755.5 × £662 = £3,641
AI consultant2 × £500 = £1,0002.75 × £575 = £1,5813.5 × £717 = £2,510
UX designer1 × £406 = £4061.5 × £450 = £6752 × £588 = £1,176
AI engineer9 × £488 = £4,39213.5 × £589 = £7,95218 × £863 = £15,535
Generative AI (LLM) engineer2 × £417 = £8343.75 × £543 = £2,0365.5 × £825 = £4,538
Test engineer2 × £350 = £7002.75 × £438 = £1,2053.5 × £588 = £2,058
Total, rounded£8,000£15,000£29,000

How these estimates are worked out

Effort: for each phase we estimate how many days each role works, as a low and a high case. These are our estimates for a typical project of this kind, not measured data.

Rates: each role's daily rate comes from UK contract job adverts over the last six months, as published by IT Jobs Watch. These are freelance contractor rates as advertised, not what was paid, and not what a consultancy or agency charges.

Low end: the low-effort days at each role's 25th-percentile rate. We use the 25th percentile, not the 10th, because the lowest effort at the cheapest rates gives a floor few buyers would ever meet.

Typical: the mid-point between low and high effort, at each role's median rate.

High end: the high-effort days at each role's 90th-percentile rate.

Totals are rounded to the nearest £500 below £10,000 and the nearest £1,000 above, and exclude VAT. Phases run one after another.

Not included:

  • Software licences, model and hosting fees
  • Travel and expenses
  • Your own staff's time
  • A consultancy's or agency's margin, overheads and risk

Real prices vary with the supplier, the state of your data and systems, how much of the work your own team does, where the work happens and how much risk the supplier carries. Consultancies and agencies usually charge more than these contractor rates, and a fixed price usually costs more than time and materials because the supplier takes the risk.

Sources

Source: IT Jobs Watch: UK contract job adverts quoting a daily rate, 6 months to 15 November 2026. Each role's page was read on . Published under CC BY-NC-SA 4.0.

Day rate sources, one row per role, read on 15 November 2026
RoleIT Jobs Watch pageRates quoted25th percentileMedian90th percentile
Business analystBusiness Analyst1,394£425£500£662
AI consultantArtificial Intelligence Consultant68£500£575£717
UX designerUX Designer75£406£450£588
AI engineerArtificial Intelligence Engineer384£488£589£863
Generative AI (LLM) engineerIT Jobs Watch has no "LLM Engineer" or "Prompt Engineer" title with daily rates; mapped to the closest title, Gen AI Engineer.Gen AI Engineer30£417£543£825
Test engineerTest Engineer245£350£438£588

Next steps