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The manifesto

Own your intelligence.

Every day, your company teaches its trade to an intelligence it doesn’t own.

Your processes. Your decisions. Your memory. Who you are.

We call it progress. It’s a dependency you no longer choose.

You’re renting your own brain. By the token, for life.

Kastel takes the opposite bet.

Your intelligence is not a subscription. It’s an asset you own.

Build it. Keep it behind your walls. Own it.

The world’s best AIs will come and work inside it. You decide what they see, and you’ll swap them in one click.

You leave whenever you want. With everything. The AI is a mercenary you replace.

Kastel doesn’t escape its own rule: full export at any time, free self-host.

A word from the founder

I’ve been an entrepreneur in tech for ten years. What I see today is companies pouring their know-how into intelligences they will never own, and calling it progress.

Kastel exists to take the opposite bet: your intelligence is an asset. You build it, you keep it, you pass it on. It is not a bill that comes back every month.

Alexis Prat

Alexis Prat

Founder · Kastel

LinkedIn

Let’s build your fortress.