Meet Jev: the AI that decides

You've seen Jev trend on X and LinkedIn, and apparently we're all supposed to know what that means already :)
Come and see it at work. I'll share my api key so you can test for free!
Yeah, it's that cheap ;)

Jev is not an LLM. But it's some form of AI, made by a company called TypeSafe.ai. It doesn't write text. You give it some data and a (formatted) question, it gives you a decision with a probability attached.

Things like:
• "Does this profile match someone who has sold to Danish retailers?" (yes, 92%)
• "Is this support email urgent?" (no, 81%)
• "Which of these 12 categories does this invoice belong to?" (Travel, 64%)

Hundreds of questions in one call, in under a second, for a fraction of a cent.
The decisions you make by hand today, or pay a SaaS for, can live inside your own tools.

The program (~2 hours):
• 30 min live demo: what Jev is, a small demo app, then a real use case I've deployed in production
• 60 min guided practice: ask Jev your own questions, from Claude Code or from the demo app in your browser, with support
• 30 min discussion: what we found, where it fits in your tools, and where it breaks

Capacity: 12 max. Small by design for quality support.
Cost: Free.

What you'll walk away with:
• A clear idea of what Jev is, and what it isn't
• Your first questions answered by Jev, on your own test data
• Ideas of where it would fit in your own tools
• The demo code, if you want it
• A rough idea of what it takes to put it in one of your own tools

This is for you if:
• You're bringing AI into how your company works, or you do it for your clients
• You've already used AI tools on real work, not just chatted with them
• You want to see where it breaks, not just the demo

If you've never used an AI tool on real work, this may go too fast.

You must bring:
• Your laptop (personal ideally)

Nice to have:
• Claude Code installed: this could help you set up Jev. If not, the demo app in your browser does the job
• A use case in mind, or find inspiration during the demo

Your host:
Hadrien Matringe - fractional CTO in Copenhagen.
I rebuild the tech businesses have outgrown.
Taught 700+ students at Le Wagon Coding Bootcamp.
Ran the first Claude Code workshops in Copenhagen in February 2026.
hadrienmatringe.com
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This workshop is not affiliated with or endorsed by TypeSafe.