Decision modelOpen source
Kev 4B
Jared Palmer
- Released
- September 20, 2026
- Data date
- September 24, 2026
- Access
Kev 4B is the middle size among the Kev adapter variants. It is a LoRA adapter with a pointer head on a 4-billion-parameter base model and processes documents or structured states alongside typed questions. The output consists of Choice, Noul, and Score with calibrated probabilities. The checkpoint runs locally through the TypeSafe-compatible interface.
Specifications and access
| Specification | Value and source |
|---|---|
| Model class | Typed-decision LoRA adapter with pointer readoutSource |
| Access | LocalSource |
| Model ID | jaredpalmer/kev-4bSource |
| Input | Text or structured states and typed questionsSource |
| Output | Structured probabilities, no text generationSource |
| Result | Choice, Noul and Score with calibrated probabilitiesSource |
| Parameters | 4 billion base modelSource |
| License | Apache-2.0 for the adapter and headSource |
| Scope | Local Kev family models with a TypeSafe-compatible interface.Source |
| Notes | The weights are adapters on top of the respective Qwen base models.Source |
| Base model | Qwen/Qwen3.5-4B-BaseSource |
| Adapter | LoRA, rank 16Source |
Popularity
22 / 100
Sources and data date
| Type | Evidence and data date |
|---|---|
| Additional source | Kev repository (retrieved September 24, 2026) · Kev repository · Editorial description reviewed October 2, 2026 |
| Additional source | Kev release plan (retrieved September 24, 2026) · Kev release plan · Editorial description reviewed October 2, 2026 |
| Additional source | Kev 4B checkpoint (retrieved September 24, 2026) · Kev 4B checkpoint · 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 |