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Model: janhq/Jan-code-4b
Source: Original Platform

README.md

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+---
+license: apache-2.0
+language:
+- en
+base_model:
+- janhq/Jan-v3-4B-base-instruct
+pipeline_tag: text-generation
+library_name: transformers
+tags:
+- agent
+---
+# Jan-Code-4B: a small code-tuned model
+
+[![GitHub](https://img.shields.io/badge/GitHub-Repository-blue?logo=github)](https://github.com/janhq/jan)
+[![License](https://img.shields.io/badge/License-Apache%202.0-yellow)](https://opensource.org/licenses/Apache-2.0)
+[![Jan App](https://img.shields.io/badge/Powered%20by-Jan%20App-purple?style=flat\&logo=android)](https://jan.ai/)
+
+![image](https://cdn-uploads.huggingface.co/production/uploads/657a81129ea9d52e5cbd67f7/IYCV1tqAbz43ZK__-i52A.png)
+
+## Overview
+
+**Jan-Code-4B** is a **code-tuned** model built on top of [Jan-v3-4B-base-instruct](https://huggingface.co/janhq/Jan-v3-4B-base-instruct). It’s designed to be a practical coding model you can run locally and iterate on quickly—useful for everyday code tasks and as a lightweight “worker” model in agentic workflows.
+
+Compared to larger coding models, Jan-Code focuses on handling **well-scoped subtasks** reliably while keeping latency and compute requirements small.
+
+## Intended Use
+
+* **Lightweight coding assistant** for generation, editing, refactoring, and debugging
+* **A small, fast worker model** for agent setups (e.g., as a sub-agent that produces patches/tests while a larger model plans)
+* **Replace Haiku model in Claude Code setup**
+
+
+## Quick Start
+
+### Integration with Jan Apps
+
+Jan-code is optimized for direct integration with [Jan Desktop](https://jan.ai/), select the model in the app to start using it.
+
+
+### Local Deployment
+
+**Using vLLM:**
+```bash
+vllm serve janhq/Jan-code-4b \
+    --host 0.0.0.0 \
+    --port 1234 \
+    --enable-auto-tool-choice \
+    --tool-call-parser hermes 
+    
+```
+
+**Using llama.cpp:**
+```bash
+llama-server --model Jan-code-4b-Q8_0.gguf \
+    --host 0.0.0.0 \
+    --port 1234 \
+    --jinja \
+    --no-context-shift
+```
+
+### Recommended Parameters
+For optimal performance in agentic and general tasks, we recommend the following inference parameters:
+```yaml
+temperature: 0.7
+top_p: 0.8
+top_k: 20
+```
+
+## 🤝 Community & Support
+
+- **Discussions**: [Hugging Face Community](https://huggingface.co/janhq/Jan-code/discussions) 
+- **Jan App**: Learn more about the Jan App at [jan.ai](https://jan.ai/)
+
+## 📄 Citation
+```bibtex
+Updated Soon
+```