How to use from
llama.cpp
Install (macOS, Linux)
curl -LsSf https://llama.app/install.sh | sh
# Start a local OpenAI-compatible server with a web UI:
llama serve -hf KucLab/kuclab-hertz-0.8f:Q4_K_M
# Run inference directly in the terminal:
llama cli -hf KucLab/kuclab-hertz-0.8f:Q4_K_M
Install from WinGet (Windows)
winget install llama.cpp
# Start a local OpenAI-compatible server with a web UI:
llama serve -hf KucLab/kuclab-hertz-0.8f:Q4_K_M
# Run inference directly in the terminal:
llama cli -hf KucLab/kuclab-hertz-0.8f:Q4_K_M
Build from source code
git clone https://github.com/ggml-org/llama.cpp.git
cd llama.cpp
cmake -B build
cmake --build build -j --target llama-app
# Start a local OpenAI-compatible server with a web UI:
./build/bin/llama serve -hf KucLab/kuclab-hertz-0.8f:Q4_K_M
# Run inference directly in the terminal:
./build/bin/llama cli -hf KucLab/kuclab-hertz-0.8f:Q4_K_M
Use Docker
docker model run hf.co/KucLab/kuclab-hertz-0.8f:Q4_K_M
Quick Links

KucLab Hertz 0.8F

A Czech/English STEM + programming assistant built by KucLab on top of Qwen/Qwen3.5-9B. Follow-up to Hertz 0.8: same QLoRA recipe, trained on the kuclab_hertz_0.8f corpus.

What this is

  • Base: Qwen/Qwen3.5-9B (~9B params, Apache 2.0)
  • Method: QLoRA, r=16 / alpha=32, 4-bit, 2 epochs, merged to bf16 then quantized
  • Training data: kuclab_hertz_0.8f (alpaca format)
  • Trained on: 2026-09-13
  • Context: 32768 tokens (num_ctx)
  • Format: GGUF q4_k_m noMTP (~5.3GB)
  • Full weights: merged/ (bf16 safetensors) and adapter/ (LoRA) included in this repo

Quickstart (Ollama)

curl -O https://huggingface.co/KucLab/kuclab-hertz-0.8f/resolve/main/Modelfile
ollama create kuclab-hertz-0.8f -f Modelfile
ollama run kuclab-hertz-0.8f

License

Apache 2.0, inherited from Qwen/Qwen3.5-9B.

Credits

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Model size
9B params
Architecture
qwen35
Hardware compatibility
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