Every department. Every use case. Real architectures, real costs, real results. Pick your function and get started.
Not sure where to start? Here's how each department stacks up.
| Department | Setup Time | Monthly Cost | ROI Timeline | Difficulty |
|---|---|---|---|---|
| 1 hour | $20–$130 | Week 1 | ⭐ Easy | |
| 📢 Marketing | 1 hour | $94–$471 | Week 2 | ⭐ Easy |
| 🎯 Sales | 4 weeks | $200–$400 | Month 2 | ⭐⭐ Medium |
| 💬 Customer Service | 8 weeks | Varies | Month 2 | ⭐⭐ Medium |
| 👥 HR | 6 weeks | $30–$167 | Month 3 | ⭐⭐ Medium |
| 💰 Finance | 4–8 weeks | Varies | Month 2 | ⭐⭐⭐ Hard |
| 📋 Project Management | 1 week | ~$50 | Week 1 | ⭐⭐ Medium |
| 🛒 Ecommerce | 2 weeks | $30–$500 | Week 2 | ⭐⭐ Medium |
| 🚛 Supply Chain | 2 weeks | $35–$2,000 | Week 1 | ⭐⭐⭐ Hard |
| 🏥 Healthcare | 3 weeks | $125–$2,500 | Month 1 | ⭐⭐⭐ Hard |
| 🏠 Real Estate | 2 weeks | $132–$1,200 | Week 1 | ⭐⭐ Medium |
| ⚖️ Legal | 2 weeks | $242–$4,500 | Week 1 | ⭐⭐⭐ Hard |
| 🎓 Education | 2 weeks | $45–$5,000 | Week 2 | ⭐⭐ Medium |
| 🏭 Manufacturing | 3 weeks | $100–$10,000 | Week 1 | ⭐⭐⭐ Hard |
| Insurance | 3 weeks | $150–$15,000 | Month 1 | ⭐⭐⭐ Hard |
If this is your first AI agent, start with Email. It's the lowest risk, fastest to set up, and delivers immediate ROI. You'll learn the fundamentals — triage, drafting, escalation — that apply to every other department.
If you're in B2B sales and lead follow-up is your bottleneck, the Sales agent is your highest-ROI move.
Already have agents running? The monitoring guide shows you how to know if they're actually working.
The AI Employee Playbook includes step-by-step templates for every department — plus the 3-File Framework, system prompts, and tool recommendations.
Get the Playbook — €29⚡ Quick Shortcut
The AI Employee Playbook gives you production-ready templates, prompts, and workflows — everything in this guide and more, ready to deploy.
Get the Playbook — €29Go deeper on the fundamentals.
Weekly field notes on building AI agents that actually work. No hype, no spam.