# TypeSafe Jev vs Claude Code: 4 models, 2 real jobs

Pre-registered test of about 9,750 calls: calibration error by question type, Jev ahead on commit classification and behind on knowledge-base filing, abstention closing the gap.

- URL: https://primeline.cc/blog/typesafe-jev-pre-registered-test
- Section: Articles and talks / Independent measurements
- Type: resource
- Claim in the entry: Pre-registered
- First seen: 2026-09-19

Page: https://awesomejev.vercel.app/p/typesafe-jev-vs-claude-code-4-models-2-real-jobs/