Downloads · 30 days
20
12% of all-time downloads
Astral-1.5-4B-GGUF
LucidityAI/Astral-1.5-4B-GGUF
Astral-1.5-4B-GGUF is a machine learning model from LucidityAI. Use it for the machine learning task on the model card, and read the license before you ship it in a product.
Astral 1.5 4B is a updated version of the Astral 4B model, trained for STEM tasks and agentic usage. The model was trained on our Astral-1.5-Post-Training-SFT and Astral-1.5-Post-Training-CRLFT datasets.
All-time downloads
163
Public
Repo size
4.3 GB
Likes
0
Public
Repo makeup
Click a slice to open those files.
.gguf4.3 GB · 100%
At a glance
- Access
- Public
- Created
- Dec 18, 2025
- Updated
- Dec 18, 2025
- SHA
- c0e26934
Model card
From the Hugging Face model README
Astral 1.5 4B
Astral 1.5 4B is a updated version of the Astral 4B model, trained for STEM tasks and agentic usage. The model was trained on our Astral-1.5-Post-Training-SFT and Astral-1.5-Post-Training-CRLFT datasets.
Comparisons
When asked for a TailwindCSS HTML page for a photo editing software models gave the following (zero-shot responses):
Qwen3 4B 2507 Thinking (8101 tokens used) <img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/QdZB10AELDKVN-N06hrvZ.png" width="300" height="300" />
<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/wKgkEt9iUpCJFdnBIZ_Kr.png" width="300" height="300" /> <img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/MiYP2g38wdJjQZyDHSRtz.png" width="300" height="300" />Astral 1.5 4B (6088 tokens used) <img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/zq-L7jDRhKAcuYQVn_KeQ.png" width="300" height="300" />
<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/U9ZOEYv0EhsOxof1cTenC.png" width="300" height="300" /> <img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/4dzf12UFlQRGF_YTNasMc.png" width="300" height="300" />GPT-5.2 <img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/RI-hntpKSYXmZiPXN48q_.png" width="300" height="300" />
<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/Kci7Xs9dFDz93P9ouxhLq.png" width="300" height="300" /> <img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/FstCN0MeL7I6lFzgkKfVK.png" width="300" height="300" />Usage
You may utilize the following chat template to do regular chat completions with the model:
<|im_start|>user
What is the capital of France?
<|im_end|>
<|im_start|>assistant
<think>
CORRECT:
The
or to use it as an agent, you must prefill <think>Agent mode is on</think> like so:
<|im_start|>user
What is the capital of France?
<|im_end|>
<|im_start|>assistant
<think>
Agent mode is on
</think>
- Languages
- en
- Created
- Dec 18, 2025
- Updated
- Dec 18, 2025