Decision modelOpen source
Decider 4B
Mapika
- Released
- -
- Data date
- September 24, 2026
- Model class
- Access
Decider 4B is the dense 4.2-billion-parameter checkpoint for text decisions. It keeps the same 32,000-token interface as the smaller variants and returns Choice for 2 to 255 options, Score for 2 to 10 levels, and Noul as a yes-probability. Its focus is knowledge and reasoning questions within a fixed answer schema.
In the size ladder, Decider 4B follows Decider 2B and remains below Decider 35B A3B.
Specifications and access
| Specification | Value and source |
|---|---|
| Model class | Typed decision modelSource |
| Access | LocalSource |
| Model ID | Mapika/decider-4bSource |
| Input | Text and typed questionsSource |
| Output | Structured probabilities, no text generationSource |
| Result | Choice, Noul and Score as probability distributionsSource |
| Parameters | 4 billionSource |
| Context window | 32,000 tokensSource |
| License | Apache-2.0Source |
| Scope | Local readout without autoregressive text generation.Source |
| Notes | The model is intended for structured decisions, not multi-step text answers.Source |
| Base model | Qwen3.5-4B-BaseSource |
| Choice options | 2-255 per questionSource |
Popularity
40.9 / 100
Sources and data date
| Type | Evidence and data date |
|---|---|
| Additional source | Decider repository (retrieved September 24, 2026) · Decider repository · Editorial description reviewed October 2, 2026 |
| Additional source | Decider model card (retrieved September 24, 2026) · Decider model card · Editorial description reviewed October 2, 2026 |
| Additional source | Decider 4B checkpoint (retrieved September 24, 2026) · Decider 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 |