How Long Does an AI Consulting Project Take? (Realistic Timelines)
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Average AI Consultant Hourly Rate UK 2026: £80–£200/hr →Average AI consultant hourly rate 2026 in the UK: £80–£200/hr for freelancers, £500–£1,200/day day rates. Compare Reddit benchmarks, London vs regional rates, agency vs freelance pricing, and project fees for startups and SMEs.
Timeline is one of the most misunderstood parts of hiring an AI consultant. Here is what is realistic by project type.
Timeline by Project Type
| Project Type | Typical Duration | Notes |
|---|---|---|
| AI workflow audit + strategy | 2–4 weeks | Workshops, interviews, roadmap |
| Single workflow build (e.g. internal Q&A bot) | 3–6 weeks | Scope → build → QA → handover |
| RAG system with custom data sources | 4–8 weeks | Depends on data quality + integrations |
| CRO + AI experimentation setup | 4–10 weeks | Backlog, tooling, first test cycle |
| Multi-workflow automation program | 3–6 months | Phased delivery with sprint reviews |
| Ongoing retainer | Open-ended | Iteration, monitoring, new use cases |
What Slows Projects Down
- Data readiness: fragmented or unstructured data can add 2–4 weeks
- Approvals: IT, security, legal, and procurement cycles
- Scope creep: expanding requirements mid-project
- Access setup: credentials, APIs, and environment delays
What Speeds Projects Up
Well-scoped projects with clear acceptance criteria, accessible data, and a single internal decision-maker typically run 20–30% faster than baseline estimates.
Typical Milestones
- Week 1: kickoff, access setup, discovery
- Week 2–3: architecture + first prototype
- Week 4–5: build + integration testing
- Week 6: QA, documentation, handover
- Post-project: optional retainer for iteration
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Book a scoping callSee also: How to Hire an AI Consultant · AI Consultant Pricing (UK) · Case Studies
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