AI is making its way into your daily work. But how do AI tools actually arrive at a company? There are three paths — and understanding them helps you contribute to discussions and choose the right tools for your tasks. The Build vs. Buy vs. Partner Framework provides a clear overview.
| Aspect | Details |
|---|---|
| When to choose | Core competency, unique competitive advantage, highly sensitive data |
| Investment | €150,000–500,000 (team + infrastructure + maintenance) |
| Time-to-Market | 6–18 months |
| Ongoing costs | €5,000–20,000/month (cloud, maintenance, team) |
| Example | Custom recommendation engine for an online shop |
💡 Tip: Build only makes sense when AI becomes your core competency. For support processes, Buy is almost always the better choice.
| Aspect | Details |
|---|---|
| When to choose | Standard problem, quick start, no in-house AI team |
| Investment | €0–10,000 (setup, integration) |
| Time-to-Market | 1–4 weeks |
| Ongoing costs | €20–500/month per user (SaaS license) |
| Example | ChatGPT Team, Copilot, Zendesk AI, Intercom AI |
| Aspect | Details |
|---|---|
| When to choose | Complex problem, missing expertise, strategically important |
| Investment | €30,000–200,000 (consulting + implementation) |
| Time-to-Market | 2–6 months |
| Ongoing costs | €1,000–5,000/month (support, further development) |
| Example | AI strategy with a tailored solution |
📖 Definition: Total Cost of Ownership (TCO) includes not just acquisition costs but also ongoing costs for maintenance, updates, training, and operations over the entire usage period.
Answer these questions before every AI decision:
Is the problem clearly defined? — No clear problem, no good solution. "We want to use AI" is not a problem. "We spend 40 hours/week on manual data entry" is.
Is there enough data? — Some AI solutions need proprietary data (custom models), others work immediately (LLM-based tools). Clarify what your approach requires.
Is ROI measurable? — Define concrete KPIs before starting: time saved in hours, error reduction in percent, cost savings in euros.
Who maintains the system? — AI is not set-and-forget. Who monitors quality? Who adjusts prompts? Who responds to errors?
Is compliance ensured? — EU AI Act, GDPR, industry-specific regulations. Check before starting, not after.
⚠️ Caution: Don't skip this checklist. Most failed AI projects don't fail because of technology — they fail due to unclear goals, missing data, or insufficient change management.
🏢 Real-world example: A mechanical engineering company wanted to train its own LLM (Build) for technical documentation. Estimated cost: €400,000. After consulting (Partner), they discovered that a customized RAG system with Claude API (Buy) at €800/month met 90% of requirements.
🎯 Exercise: Think of a concrete task in your area of work and evaluate it with the 5-question checklist. Which approach (Build/Buy/Partner) would fit best?
Next lesson: Risks and Limitations of AI — what you absolutely need to know.