Diabase Diabase

European AI · Open weights

AI you can run
under European law

Open models and tools for teams that need data sovereignty — Swedish-first NLP, local deployment, and infrastructure you can actually inspect. Built by Mattis Rosén.

Your data, your jurisdiction

Built for people who can't shrug about where prompts go or which law sits on top of the stack.

Data sovereignty

Prefer EU-hosted paths and self-hostable weights. Know where workloads run — and keep the option to keep them on your own metal.

Lockdown mode

In Chisel, restrict data handling and model use to a country or region you choose. You control the boundary — no silent exceptions.

Built for speed

European AI shouldn't mean slow AI. Lean stacks, practical quantization, and infrastructure close to the people using it.

What I'm building

Products and research a recruiter can inspect — write-ups first, live demos second.

Europe needs its own AI stack

A lot of AI infrastructure still routes through US-based providers, under laws that sit awkwardly next to European privacy rules.

Diabase is my attempt at a practical alternative: open weights, local-first options, and tooling that doesn't force a trade-off between capability and control.

GDPR-minded by design
Self-hostable open weights
EU-friendly deployment paths
Country-level lockdown in Chisel
Published benchmarks & limits
No vendor lock-in by design

How I like to build

Less theatre, more operable systems.

Open when it matters

Weights, licenses, and limitations on the table. Research previews stay labelled as such.

  • Hugging Face releases
  • Clear attribution
  • Honest eval write-ups

Local-first options

Ollama, GGUF, and stacks you can put on your own GPU — not only an API behind a login.

  • Consumer-hardware friendly
  • On-prem friendly
  • Your data stays yours

Swedish & European

Language and jurisdiction aren't afterthoughts. Tuned for Swedish use, designed for EU context.

  • Swedish-first retrieval
  • EU legal context
  • Scandinavian foundations

Want to follow the work?

Join the waitlist for launches and technical notes. Low volume — nothing spammy.