Instructions to use Entz/gpt-oss-20b-ck-MXFP4 with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use Entz/gpt-oss-20b-ck-MXFP4 with llama-cpp-python:

# !pip install llama-cpp-python

from llama_cpp import Llama

llm = Llama.from_pretrained(
	repo_id="Entz/gpt-oss-20b-ck-MXFP4",
	filename="gpt-oss-20b-ck-MXFP4.gguf",
)

llm.create_chat_completion(
	messages = "No input example has been defined for this model task."
)

Notebooks
Google Colab
Kaggle
Local Apps Settings

llama.cpp

How to use Entz/gpt-oss-20b-ck-MXFP4 with llama.cpp:

Install from brew

brew install llama.cpp
# Start a local OpenAI-compatible server with a web UI:
llama-server -hf Entz/gpt-oss-20b-ck-MXFP4
# Run inference directly in the terminal:
llama-cli -hf Entz/gpt-oss-20b-ck-MXFP4

Install from WinGet (Windows)

winget install llama.cpp
# Start a local OpenAI-compatible server with a web UI:
llama-server -hf Entz/gpt-oss-20b-ck-MXFP4
# Run inference directly in the terminal:
llama-cli -hf Entz/gpt-oss-20b-ck-MXFP4

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 Entz/gpt-oss-20b-ck-MXFP4
# Run inference directly in the terminal:
./llama-cli -hf Entz/gpt-oss-20b-ck-MXFP4

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 Entz/gpt-oss-20b-ck-MXFP4
# Run inference directly in the terminal:
./build/bin/llama-cli -hf Entz/gpt-oss-20b-ck-MXFP4

Use Docker

docker model run hf.co/Entz/gpt-oss-20b-ck-MXFP4

LM Studio
Jan
Ollama
How to use Entz/gpt-oss-20b-ck-MXFP4 with Ollama:
```
ollama run hf.co/Entz/gpt-oss-20b-ck-MXFP4
```

Unsloth Studio

How to use Entz/gpt-oss-20b-ck-MXFP4 with Unsloth Studio:

Install Unsloth Studio (macOS, Linux, WSL)

curl -fsSL https://unsloth.ai/install.sh | sh
# Run unsloth studio
unsloth studio -H 0.0.0.0 -p 8888
# Then open http://localhost:8888 in your browser
# Search for Entz/gpt-oss-20b-ck-MXFP4 to start chatting

Install Unsloth Studio (Windows)

irm https://unsloth.ai/install.ps1 | iex
# Run unsloth studio
unsloth studio -H 0.0.0.0 -p 8888
# Then open http://localhost:8888 in your browser
# Search for Entz/gpt-oss-20b-ck-MXFP4 to start chatting

Using HuggingFace Spaces for Unsloth

# No setup required
# Open https://huggingface.co/spaces/unsloth/studio in your browser
# Search for Entz/gpt-oss-20b-ck-MXFP4 to start chatting

How to use Entz/gpt-oss-20b-ck-MXFP4 with Pi:

Start the llama.cpp server

# Install llama.cpp:
brew install llama.cpp
# Start a local OpenAI-compatible server:
llama-server -hf Entz/gpt-oss-20b-ck-MXFP4

Configure the model in Pi

# Install Pi:
npm install -g @mariozechner/pi-coding-agent
# Add to ~/.pi/agent/models.json:
{
  "providers": {
    "llama-cpp": {
      "baseUrl": "http://localhost:8080/v1",
      "api": "openai-completions",
      "apiKey": "none",
      "models": [
        {
          "id": "Entz/gpt-oss-20b-ck-MXFP4"
        }
      ]
    }
  }
}

Run Pi

# Start Pi in your project directory:
pi

Hermes Agent new

How to use Entz/gpt-oss-20b-ck-MXFP4 with Hermes Agent:

Start the llama.cpp server

# Install llama.cpp:
brew install llama.cpp
# Start a local OpenAI-compatible server:
llama-server -hf Entz/gpt-oss-20b-ck-MXFP4

Configure Hermes

# Install Hermes:
curl -fsSL https://hermes-agent.nousresearch.com/install.sh | bash
hermes setup
# Point Hermes at the local server:
hermes config set model.provider custom
hermes config set model.base_url http://127.0.0.1:8080/v1
hermes config set model.default Entz/gpt-oss-20b-ck-MXFP4

Run Hermes

hermes

Atomic Chat new
Docker Model Runner
How to use Entz/gpt-oss-20b-ck-MXFP4 with Docker Model Runner:
```
docker model run hf.co/Entz/gpt-oss-20b-ck-MXFP4
```

Lemonade

How to use Entz/gpt-oss-20b-ck-MXFP4 with Lemonade:

Pull the model

# Download Lemonade from https://lemonade-server.ai/
lemonade pull Entz/gpt-oss-20b-ck-MXFP4

Run and chat with the model

lemonade run user.gpt-oss-20b-ck-MXFP4-{{QUANT_TAG}}

List all available models

lemonade list

gpt-oss-20b-ck-MXFP4

This is a test fine-tune of the base model unsloth/gpt-oss-20b. It was fine-tuned using Unsloth for efficiency on a small dataset as an experimental setup.

Model Details

Base Model: unsloth/gpt-oss-20b (MXFP4 quantized)
Fine-Tuning Method: QLoRA with rank=64, targeting MoE layers
Training Epochs: 6
Dataset: Small custom dataset (~4,000 examples)
Max Sequence Length: 8192
Optimizer: AdamW 8-bit
Learning Rate: 1e-4

The model is provided in MXFP4 GGUF format for compatibility with llama.cpp, Ollama, or LM Studio.

Usage

Load with Unsloth or transformers for inference:

from unsloth import FastLanguageModel
model, tokenizer = FastLanguageModel.from_pretrained("Entz/gpt-oss-20b-ck-MXFP4")

Downloads last month: 2

GGUF

Model size

21B params

Architecture

gpt-oss

Hardware compatibility

We're not able to determine the quantization variants.

View all variants

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Model tree for Entz/gpt-oss-20b-ck-MXFP4

Base model

openai/gpt-oss-20b

Quantized

unsloth/gpt-oss-20b

Quantized

(21)

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