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OpenJev

The gist

TypeSafe AI launched Jev, a typed-decision model, with $40M led by DCVC.
Independent OpenJev projects appeared within days, testing the idea on open models.

How it unfolded

  1. Sep 15, 2026TypeSafe AI announced Jev, a System One Model that returns typed probabilistic decisions instead of generated text; launched with $40M led by DCVC.
  2. Sep 16, 2026AlexWortega/openjev was posted on Hugging Face — Qwen3.5 trained as a Jev model with NLI-style predict and rerank functions, under an MIT licence.
  3. Sep 18, 2026AlexWortega/openjev, TheoLeeCJ/openjev, ekzhang/openjev-sglang, daseinlabs/open-jev, rorshopping/jev-on-a-laptop, vinnylarouge/jevlike and zhihz/openjev were confirmed as the main OpenJev-named implementations.

Sources

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