coding

Jan v3 4B: Compact Model Excels at Math & Code

Jan v3 4B is a compact language model that demonstrates strong performance in mathematical reasoning and code generation tasks despite its smaller parameter

Someone from the Jan team released a 4B-parameter model that punches above its weight for math and coding tasks.

To try it:

Download Jan Desktop from https://www.jan.ai/, then grab the model from Jan Hub, or pull it directly:

They recommend these settings for best results:

temperature: 0.7
top_p: 0.8
top_k: 20

Pretty solid for a lightweight model - runs locally without needing a beefy GPU. Works well as a base for fine-tuning if someone wants to customize it for specific tasks. The team’s planning bigger releases too, including a 30B version and specialized code/search variants.

Good option for anyone wanting local AI that doesn’t destroy their system resources.