Exerakt: Calibrating Jev

What 204 questions asked to both Jev and Claude showed: Jev is almost never confidently wrong, it is unsure on the questions that need careful reading, and the data says almost nothing about how well it catches problems.

October 20, 2026 · 3 min

Exerakt: What Bonsai Does With Frozen Tests

How the local Bonsai model did as the executor over 28 cards: the logic was almost always right, and almost every failure was code that did not compile. And the mistake I made in how I ran it.

October 20, 2026 · 4 min

Exerakt: How the Models Work Together

How Claude, Jev and a local Bonsai model are put together into one pipeline, and what its first run showed: most failures that looked like the executor’s were mine.

October 18, 2026 · 6 min

Exerakt: Why I Let Models Write My Matrix Client

Why I started Exerakt: to see how far models can get writing a real program on their own, in a structured process and without a big bill, and to get a Matrix desktop client I actually want to use.

October 18, 2026 · 3 min