---
base_model: Qwen/Qwen3-4B
datasets:
- LucidityAI/Astral-Post-Training-Dataset
tags:
- code
- chemistry
- finance
- biology
---

# Astral-4B

Astral 4B is the medium sized model in the Astral family. It was fine-tuned from Qwen3 4b on LucidityAI/Astral-Post-Training-Dataset. 


As with usual Qwen3 models, reasoning can be toggled through the usage of ```/no_think``` or not.


### Example Prompt (ChatML Format (THINKING)):

```xml
<|im_start|>user
What is the capital of France?
<|im_end|>
<|im_start|>assistant
<think>
```

### Example Prompt (ChatML Format (NON-THINKING)):

```xml
<|im_start|>user
What is the capital of France? /no_think
<|im_end|>
<|im_start|>assistant
<think>
```