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

# Astral-4B-Coder

Astral 4B Coder is the medium sized model in the Astral coder family. It was fine-tuned from Astral 4b. 

> Note: Utilize no think for agentic tasks and think for hard non-agentic tasks

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>
```