Instructions to use EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP with llama-cpp-python:

# !pip install llama-cpp-python

from llama_cpp import Llama

llm = Llama.from_pretrained(
	repo_id="EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP",
	filename="gpt-oss-20b.MXFP4.gguf",
)

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

Notebooks
Google Colab
Kaggle
Local Apps

llama.cpp

How to use EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP with llama.cpp:

Install from brew

brew install llama.cpp
# Start a local OpenAI-compatible server with a web UI:
llama-server -hf EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP
# Run inference directly in the terminal:
llama-cli -hf EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP

Install from WinGet (Windows)

winget install llama.cpp
# Start a local OpenAI-compatible server with a web UI:
llama-server -hf EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP
# Run inference directly in the terminal:
llama-cli -hf EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP

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 EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP
# Run inference directly in the terminal:
./llama-cli -hf EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP

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 EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP
# Run inference directly in the terminal:
./build/bin/llama-cli -hf EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP

Use Docker

docker model run hf.co/EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP

LM Studio
Jan
Ollama
How to use EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP with Ollama:
```
ollama run hf.co/EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP
```

Unsloth Studio new

How to use EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP 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 EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP 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 EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP to start chatting

Using HuggingFace Spaces for Unsloth

# No setup required
# Open https://huggingface.co/spaces/unsloth/studio in your browser
# Search for EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP to start chatting

Pi new

How to use EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP with Pi:

Start the llama.cpp server

# Install llama.cpp:
brew install llama.cpp
# Start a local OpenAI-compatible server:
llama-server -hf EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP

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": "EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP"
        }
      ]
    }
  }
}

Run Pi

# Start Pi in your project directory:
pi

Hermes Agent new

How to use EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP with Hermes Agent:

Start the llama.cpp server

# Install llama.cpp:
brew install llama.cpp
# Start a local OpenAI-compatible server:
llama-server -hf EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP

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 EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP

Run Hermes

hermes

Docker Model Runner
How to use EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP with Docker Model Runner:
```
docker model run hf.co/EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP
```

Lemonade

How to use EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP with Lemonade:

Pull the model

# Download Lemonade from https://lemonade-server.ai/
lemonade pull EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP

Run and chat with the model

lemonade run user.gpt-oss-20b-Opus-4.5-distill-GGUF-EXP-{{QUANT_TAG}}

List all available models

lemonade list

gpt-oss-20b-Opus-4.5-distill-GGUF : GGUF

This model was finetuned and converted to GGUF format using Unsloth.

This was trained on the TeichAI Opus 4.5 dataset https://huggingface.co/datasets/TeichAI/claude-4.5-opus-high-reasoning-250x

This model is trained to sound like Opus do not expect it to perform like Opus does. Hes still a silly lil guy so expect the usual dumbness you get from a model this size.

Since the dataset is 250x examples its for making a style distill there is simply not enough juicy data to create a "Mini Opus"

To do that you would likely need hundreds of thousands of examples and billions of tokens. Even then its only 20b parameters there is only so much that a small model can learn.

It still fails at tool calls in LM studio like the stock GPT OSS 20b does.

Trained using a rank 8 lora and 1e-4 LR

Downloads last month: 105

GGUF

Model size

21B params

Architecture

gpt-oss

Hardware compatibility

We're not able to determine the quantization variants.

View all variants

Inference Providers NEW

This model isn't deployed by any Inference Provider. 🙋 Ask for provider support

EclipseMist
/

gpt-oss-20b-Opus-4.5-distill-GGUF-EXP

gpt-oss-20b-Opus-4.5-distill-GGUF : GGUF

This model is trained to sound like Opus do not expect it to perform like Opus does. Hes still a silly lil guy so expect the usual dumbness you get from a model this size.

Trained using a rank 8 lora and 1e-4 LR

Dataset used to train EclipseMist/gpt-oss-20b-Opus-4.5-distill-GGUF-EXP