Text Generation
GGUF
English
chain-of-thought
llama.cpp
mellum
mellum2
Mixture of Experts
quantized
reasoning
conversational
Instructions to use CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF with libraries, inference providers, notebooks, and local apps. Follow these links to get started.
- Notebooks
- Google Colab
- Kaggle
- Local Apps Settings
- llama.cpp
How to use CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF with 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 CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M # Run inference directly in the terminal: llama cli -hf CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
Install from WinGet (Windows)
winget install llama.cpp # Start a local OpenAI-compatible server with a web UI: llama serve -hf CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M # Run inference directly in the terminal: llama cli -hf CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
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 CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M # Run inference directly in the terminal: ./llama-cli -hf CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
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 CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M # Run inference directly in the terminal: ./build/bin/llama-cli -hf CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
Use Docker
docker model run hf.co/CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
- LM Studio
- Jan
- vLLM
How to use CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF with vLLM:
Install from pip and serve model
# Install vLLM from pip: pip install vllm # Start the vLLM server: vllm serve "CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF" # Call the server using curl (OpenAI-compatible API): curl -X POST "http://localhost:8000/v1/chat/completions" \ -H "Content-Type: application/json" \ --data '{ "model": "CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF", "messages": [ { "role": "user", "content": "What is the capital of France?" } ] }'Use Docker
docker model run hf.co/CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
- Ollama
How to use CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF with Ollama:
ollama run hf.co/CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
- Unsloth Desktop
- Pi
How to use CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF with Pi:
Start the llama.cpp server
# Install llama.cpp: brew install llama.cpp # Start a local OpenAI-compatible server: llama serve -hf CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
Configure the model in Pi
# Install Pi: npm install -g @earendil-works/pi-coding-agent # Add to ~/.pi/agent/models.json: { "providers": { "llama-cpp": { "baseUrl": "http://localhost:8080/v1", "api": "openai-completions", "apiKey": "none", "models": [ { "id": "CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M" } ] } } }Run Pi
# Start Pi in your project directory: pi
- Docker Model Runner
How to use CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF with Docker Model Runner:
docker model run hf.co/CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
- Lemonade
How to use CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF with Lemonade:
Pull the model
# Download Lemonade from https://lemonade-server.ai/ lemonade pull CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
Run and chat with the model
lemonade run user.Mellum2-12B-A2.5B-Thinking-GGUF-Q4_K_M
List all available models
lemonade list
- Hermes Agent
How to use CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF with Hermes Agent:
Start the llama.cpp server
# Install llama.cpp: brew install llama.cpp # Start a local OpenAI-compatible server: llama serve -hf CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
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 CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
Run Hermes
hermes
- Atomic Chat
- OpenClaw
How to use CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF with OpenClaw:
Start the llama.cpp server
# Install llama.cpp: brew install llama.cpp # Start a local OpenAI-compatible server: llama serve -hf CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M
Configure OpenClaw
# Install OpenClaw: npm install -g openclaw@latest # Register the local server and set it as the default model: openclaw onboard --non-interactive --mode local \ --auth-choice custom-api-key \ --custom-base-url http://127.0.0.1:8080/v1 \ --custom-model-id "CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q4_K_M" \ --custom-provider-id llama-cpp \ --custom-compatibility openai \ --custom-text-input \ --accept-risk \ --skip-health
Run OpenClaw
openclaw agent --local --agent main --message "Hello from Hugging Face"
| license: apache-2.0 | |
| base_model: | |
| - JetBrains/Mellum2-12B-A2.5B-Thinking | |
| language: | |
| - en | |
| tags: | |
| - quantized | |
| - gguf | |
| - mellum | |
| - moe | |
| pipeline_tag: text-generation | |
| # Mellum2-12B-A2.5B-Thinking - GGUF | |
| Quantized GGUF version of [JetBrains/Mellum2-12B-A2.5B-Thinking](https://huggingface.co/JetBrains/Mellum2-12B-A2.5B-Thinking). | |
| These were generated using the default settings with `llama-quantize` (b9482). | |
| ## Quantizations provided | |
| | File | Quantization | Size | | |
| |------|--------------|------| | |
| | `Mellum2-12B-A2.5B-Thinking-Q4_K_M.gguf` | Q4_K_M | 8.07 GB | | |
| | `Mellum2-12B-A2.5B-Thinking-Q5_K_M.gguf` | Q5_K_M | 9.21 GB | | |
| | `Mellum2-12B-A2.5B-Thinking-Q6_K.gguf` | Q6_K | 10.9 GB | | |
| | `Mellum2-12B-A2.5B-Thinking-Q8_0.gguf` | Q8_K | 12.9 GB | | |
| ## Perplexity test | |
| I tested perplexity using `llama-perplexity` and Salesforce's [wikitext-2-raw-v1](https://huggingface.co/datasets/Salesforce/wikitext/tree/main/wikitext-2-raw-v1). | |
| | File | Quantization | Ctx | PPL | | |
| |------|--------------|-----|-----| | |
| | `Mellum2-12B-A2.5B-Thinking-Q4_K_M.gguf` | Q4_K_M | 512 | 9.7410 +/- 0.07128 | | |
| | `Mellum2-12B-A2.5B-Thinking-Q5_K_M.gguf` | Q5_K_M | 512 | 9.4490 +/- 0.06807 | | |
| | `Mellum2-12B-A2.5B-Thinking-Q6_K.gguf` | Q6_K | 512 | 9.7329 +/- 0.07207 | | |
| | `Mellum2-12B-A2.5B-Thinking-Q8_0.gguf` | Q8_0 | 512 | 9.3657 +/- 0.06734 | | |
| | `Mellum2-12B-A2.5B-Thinking-BF16.gguf` | BF16 | 512 | 9.4037 +/- 0.06784 | | |
| ## Serving with llama.cpp | |
| llama.cpp added support for Mellum2 in release b9482. | |
| It has a max context size of 131,072. | |
| This can be served using: | |
| ```bash | |
| llama-server \ | |
| -hf CodeFault/Mellum2-12B-A2.5B-Thinking-GGUF:Q5_K_M \ | |
| --temp 0.6 \ | |
| --top-p 0.95 \ | |
| --top-k 20 | |
| ``` | |