Get a realistic estimate of what AI implementation truly costs — beyond the subscription fee. Model integration work, training, change management and ongoing maintenance to see total first-year cost.
The subscription cost of an AI tool is typically 30-60% of the true first-year cost. Integration work, training time, change management and lost productivity during the transition all add significant cost that most business cases ignore. A £500/month tool for 30 people is £6,000/year in subscriptions — but the total first-year cost for a medium-complexity implementation is often £20,000-£40,000.
| Complexity | Example | Integration Days | Training per Person | Yr1 Multiplier |
|---|---|---|---|---|
| Low | ChatGPT Plus rollout | 2–5 days | 2 hours | 1.1–1.3× |
| Medium | CRM AI integration | 10–30 days | 4–8 hours | 1.5–2.5× |
| High | Custom LLM workflow | 40–90 days | 10–20 hours | 2.5–5× |
| Enterprise | Full AI transformation | 100–300 days | 20–60 hours | 4–10× |
For a small business (10-50 people): a simple AI tool rollout (ChatGPT, Claude) costs £500-2,000 in year one (mostly training time). A medium-complexity implementation (CRM integration, chatbot) costs £5,000-£25,000 in year one. An enterprise-grade AI workflow transformation: £50,000-£500,000+. Always model total cost of ownership including integration, training and ongoing maintenance — not just subscription cost.
Simple tool deployment (ChatGPT, Copilot): 1-2 weeks for training and initial rollout. API-integrated tool: 4-12 weeks including integration development, testing and user training. Custom AI workflow: 3-9 months. Enterprise AI transformation: 6-24 months. Training and adoption is typically 50-60% of the timeline — the technology is rarely the bottleneck.