---
license: other
license_name: caal-model-license-v1
license_link: LICENSE
language:
  - en
base_model: Qwen/Qwen3.5-2B
tags:
  - tool-calling
  - voice-assistant
  - fine-tuned
  - gguf
  - qwen3.5
  - caal
---

# CAAL Qwen3.5 2B — Fine-Tuned for Tool Calling

A fine-tuned [Qwen3.5 2B](https://huggingface.co/Qwen/Qwen3.5-2B) model optimized for tool calling in voice assistant workflows. Built for [CAAL](https://github.com/CoreWorxLab/CAAL) (CoreWorxLab Ambient Assistant for Linux).

## Performance

**82/85 tests passed (96%)** on the CAAL 85-test evaluation suite:

| Category | Score |
|----------|-------|
| Single tool calls | 27/27 |
| Conversational (no tool) | 10/10 |
| Multi-turn chains | 28/29 |
| Argument formatting | 17/19 |

## Model Details

- **Base model**: Qwen3.5 2B
- **Training method**: SFT with BF16 LoRA (last-turn-only — previous turns as context, only final response trained)
- **LoRA config**: r=32, alpha=32
- **Quantization**: Q4_K_M (GGUF)
- **File size**: ~1.2 GB
- **VRAM usage**: ~2.6 GB at 16384 context

## Usage with Ollama

```bash
# Download the GGUF and create a Modelfile:
# Modelfile contents:
# FROM caal-qwen3.5-2b-q4.gguf
# RENDERER qwen3.5
# PARSER qwen3.5
# PARAMETER temperature 0.1
# PARAMETER num_ctx 16384

ollama create caal-qwen35-2b -f Modelfile
```

## Designed For

- Edge deployment on consumer GPUs (fits on 5GB+ VRAM alongside TTS)
- Local voice assistants with tool calling
- Smart home control, email, calendar, and service management
- Multi-step tool chains (e.g., search → lookup contact → send email)

## License

See [LICENSE](LICENSE) for the CAAL Model License v1.0. This model is free for personal, non-commercial use with attribution to CoreWorxLab. Commercial use requires written permission.

The base model (Qwen3.5) is licensed under Apache 2.0. Users must comply with both licenses.