Decision modelLegacy
Kev 0.5B
Jared Palmer
- Released
- -
- Data date
- September 24, 2026
- Access
Kev 0.5B is the historical prototype of the Kev family. It consists of a LoRA adapter and pointer head on a Qwen2.5-0.5B base model and returns probabilities for Choice, Noul, and Score. The base-model weights are not included. The legacy checkpoint remains usable locally.
The later variants Kev 0.8B, Kev 4B, and Kev 9B continue the Kev family with larger base models. Kev 0.5B remains useful for reproducing the early training and serving setup.
Specifications and access
| Specification | Value and source |
|---|---|
| Training | September 17, 2026Source |
| Model class | Typed-decision LoRA adapter with pointer readoutSource |
| Access | LocalSource |
| Model ID | jaredpalmer/kev-0.5bSource |
| Input | Text or structured states and typed questionsSource |
| Output | Structured probabilities, no text generationSource |
| Result | Choice, Noul and Score with probabilitiesSource |
| Parameters | 0.5 billion base modelSource |
| License | Apache-2.0 for the adapter and headSource |
| Scope | Historical Kev prototype on Qwen2.5-0.5B.Source |
| Notes | The official model card marks this checkpoint as superseded by Kev-0.8B, Kev-4B and Kev-9B.Source |
| Base model | Qwen/Qwen2.5-0.5BSource |
Popularity
34.8 / 100
Sources and data date
| Type | Evidence and data date |
|---|---|
| Additional source | Kev 0.5B model card (retrieved September 24, 2026) · Kev 0.5B model card · Editorial description reviewed October 2, 2026 |
| Additional source | Kev repository (retrieved September 24, 2026) · Kev repository · Editorial description reviewed October 2, 2026 |
| Additional source | OpenRouter: Popularity index (derived), CC BY 4.0 |
| Additional source | Vercel AI Gateway: Popularity index (derived), CC BY 4.0 |
| Additional source | Creative Commons Attribution 4.0 |