---
license: apache-2.0
datasets:
- marcelbinz/Psych-101
language:
- en
base_model:
- unsloth/SmolLM3-3B-Base
base_model_relation: adapter
pipeline_tag: text-generation
library_name: peft
tags:
  - psychology
  - cognitive science
  - human behavior
  - unsloth
  - lora
---

<div align="center">
  <img src="Smoltaur-3B-LoRA-r16-f0.25.png" alt="Smoltaur-3B-LoRA-r16-f0.25" width="1000">

  [![Hugging Face](https://img.shields.io/badge/Base-SmolLM3--3B-FFD21E?style=flat-square&logo=huggingface&logoColor=fff)](https://huggingface.co/HuggingFaceTB/SmolLM3-3B-Base)

  [![socius](https://img.shields.io/badge/Family-Smoltaur-00002E?logo=data:image/svg%2bxml;base64,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&logoColor=white)](https://huggingface.co/collections/socius/smoltaur-3b-lora-6a6449c3bea837ecbb2c4311)
  [![Paper](https://img.shields.io/badge/Paper-arXiv-1C9418?logo=arxiv&logoColor=white)](https://arxiv.org/abs/2608.05224)
  [![Parameters](https://img.shields.io/badge/Params-3B-3C46FF)](https://huggingface.co/socius/Smoltaur-3B-LoRA-r16-f0.25)
  [![LoRA](https://img.shields.io/badge/LoRA-r%3D16-191F8C)](https://huggingface.co/socius/Smoltaur-3B-LoRA-r16-f0.25)
  [![Dataset](https://img.shields.io/badge/Dataset-Psych--101-51DA4C)](https://huggingface.co/datasets/marcelbinz/Psych-101)
  [![Data fraction](https://img.shields.io/badge/Data-25%25-1C9418)](https://huggingface.co/datasets/marcelbinz/Psych-101)
</div>

# Smoltaur-3B-LoRA-r16-f0.25

LoRA adapter for **Smoltaur-3B**, fine-tuned on a stratified 25% subset of
[Psych-101](https://huggingface.co/datasets/marcelbinz/Psych-101) as part of the
LoRA-rank sweep and dataset-size ablation for
*Small Foundation Models of Human Cognition and Behaviour*.

| field | value |
|----------------|-------|
| base model | [unsloth/SmolLM3-3B-Base](https://huggingface.co/unsloth/SmolLM3-3B-Base) |
| LoRA rank | 16 (alpha = rank, rsLoRA) |
| data fraction | 25% of Psych-101 |
| training | 1 epoch, completion-only loss, seed 3407 |

Load with PEFT on top of `unsloth/SmolLM3-3B-Base`, or evaluate with the project's
`eval_model.py --backend unsloth`.