# Jebadiah v2.1 model sizes and sources

> Jebadiah v2.1 is an open decision model family with 9B and 27B sizes. It reads option-label probabilities in one pass with thinking off.

Updated 2026-11-04 (Australia/Adelaide)

By frontier-infra · Released: 2026-10-10 · OPEN

Open decision models that read option-label probabilities in a single pass with thinking switched off: you get a pick and a confidence, not an essay. GGUF and MLX builds sit next to the full weights. Released 10 Oct 2026, written up on 16 Oct.

## Facts

- Sizes: 9B and 27B
- Licence: Apache-2.0

## Claims and sources



## Links

- [Source: Release post](<https://huggingface.co/blog/frontier-infra/jebadiah-v2-1>)

## Related projects

No related projects are listed in the registry.