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 jabbatheduck/oscar2-models
# Run inference directly in the terminal:
llama cli -hf jabbatheduck/oscar2-models
Install from WinGet (Windows)
winget install llama.cpp
# Start a local OpenAI-compatible server with a web UI:
llama serve -hf jabbatheduck/oscar2-models
# Run inference directly in the terminal:
llama cli -hf jabbatheduck/oscar2-models
Use pre-built binary
# Download pre-built binary from:
# https://github.com/ggerganov/llama.cpp/releases
# Start a local OpenAI-compatible server with a web UI:
./llama-server -hf jabbatheduck/oscar2-models
# Run inference directly in the terminal:
./llama-cli -hf jabbatheduck/oscar2-models
Build from source code
git clone https://github.com/ggerganov/llama.cpp.git
cd llama.cpp
cmake -B build
cmake --build build -j --target llama-server llama-cli
# Start a local OpenAI-compatible server with a web UI:
./build/bin/llama-server -hf jabbatheduck/oscar2-models
# Run inference directly in the terminal:
./build/bin/llama-cli -hf jabbatheduck/oscar2-models
Use Docker
docker model run hf.co/jabbatheduck/oscar2-models
Quick Links

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Check out the documentation for more information.

OSCAR2 Models

Collection: OSCAR2 Models

Model

Name File KV cache Context
Qwen3.6-27B-Q5KXL-Hadamard qwen3.6-27b-q5kxl-hadamard.gguf oscar2/oscar2 131072

OSCAR2 Source

This model requires an oscar2-capable build of llama.cpp from the TurboQuant oscar branch.

Build Instructions

git clone -b oscar https://github.com/giveen/llama-cpp-turboquant.git
cd llama-cpp-turboquant
mkdir build && cd build
cmake .. -DCMAKE_BUILD_TYPE=Release -DGGML_CUDA=ON
cmake --build . --config Release -j $(nproc)

Run with this Model

./build/bin/llama-cli \
  -m /path/to/qwen3.6-27b-q5kxl-hadamard.gguf \
  -ngl 99 -fa on -c 131072 \
  --cache-type-k oscar2 --cache-type-v oscar2 \
  -n 512 --temp 0

Notes

  • Requires NVIDIA Blackwell GPU with CUDA 13.3 or compatible.
  • KV cache stores ~2.25 bits/weight with oscar2 quantization.
  • Use --no-jinja if chat template parsing fails with very long prompts.
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Model size
27B params
Architecture
qwen35
Hardware compatibility
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Collection including jabbatheduck/oscar2-models