Explainers· Last updated

Jev 1.13: the current public model

As of the public models page, the current versioned model is jev-1.13.0. The aliases jev-latest and jev-preview both point at that ID. There is no separate preview build until TypeSafe ships one.

The jaggedness note applies to jev-1.13 and was last reviewed 2026-09-17.

Published envelope

From the models page (confirm there before you bid a contract):

The response model field reports the versioned ID that actually answered, even if you sent an alias. Log it.

Pinning

If you have tuned confidence thresholds against a specific version, TypeSafe tells you to pin that versioned ID and move on your schedule. Aliases move when a release ships.

GET /v1/models currently lists aliases. Versioned IDs are still accepted on POST /v1/systemone whether or not they appear in the list.

Character of 1.13

TypeSafe’s own jaggedness summary: fast, calibrated, good at common-sense judgment; weaker on extra indirection, literal about wording, and unreliable at numeric precision. Details live on jaggedness.

Sources

Public TypeSafe or adjacent documentation only. No private claims.