AI-generated image: a woman stands at a tall window at golden hour, next to a desk with an open laptop and a cup

You're losing customers you already paid for.

I build AI that answers every inquiry, sends your offer the same day, and asks for the next job.

Book a free 15-minute call

On the call, you see where you lose the most customers.

Works with the tools you already use

Customers you paid for, and lost

  • The message you answer tomorrow.

    Someone asks for a price at 10 pm. By morning they booked your competitor, and you never hear about it.

  • The offer you send on Friday.

    The call went well on Tuesday. By the time your offer arrives, they signed with someone faster.

  • The customer you never call again.

    They liked your work. Nobody asked for the next job, so they gave it to someone who did.

See where you lose customers

A free 17-page workbook. The same one I use in my AI Audits.

Confirm your email and get the PDF. I'll also send an occasional email when I build something new. Unsubscribe anytime.

See it work

3 demos with made-up companies. Watch one, then try it yourself.

Projects I've built

years writing software
13
years building AI that runs in real businesses
3

From first call to a working system in 3 weeks

  1. 15 minIntro callWhere do you lose the most customers?
  2. 60 minAudit callI ask how you win customers and how you keep them.
  3. 3 daysYour AI AuditA video and a PDF: what to build, what it brings in, and what it costs.
  4. 14 daysBuildIt runs in the tools you already use.

We pick one number together. If it hasn't moved in 30 days, I keep working for free until it does.

Book a call
AI-generated portrait of Leander van Diepen, made from photos of him

I'm Leander. I've written code since I was 13. Today I build AI as a senior engineer. With diepen.ai, I build it for businesses like yours.

Questions

What does it cost?
You get a fixed price in your AI Audit, before any work starts.
What if the AI makes a mistake?
Complaints and unusual cases go to you, with a short summary.
What happens after it's live?
I fix anything that breaks for 30 days. After that, you can pick a care plan.
Who owns it?
You do. Your accounts and your code.
Where are you based?
In Germany. I work with clients everywhere, in English or German.

Book a free 15-minute call

We find where you lose the most customers. Then you know what to build first.

We pick one number together. If it hasn't moved in 30 days, I keep working for free until it does.

Book a call
Book a call