FastContext-1.0-4B-SFT-GGUF-Q8_0

FastContext-1.0-4B-SFT-GGUF-Q8_0

GGUF quantized version of Microsoft's FastContext-1.0-4B-SFT model optimized for local inference with llama.cpp, LM Studio, Ollama, and other GGUF-compatible runtimes.

Model Information

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About FastContext

FastContext is a lightweight repository exploration model developed by Microsoft for coding agents.

Instead of forcing a coding agent to spend large amounts of tokens searching through repositories, FastContext acts as a dedicated explorer that:

• Searches repositories efficiently
• Discovers relevant files
• Finds code references
• Returns file paths and line numbers
• Reduces token consumption
• Improves coding agent performance

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Quantization Details

This repository contains the GGUF-converted and Q8_0 quantized version of the original model.

Conversion Pipeline

Hugging Face Model
        ↓
Safetensors
        ↓
GGUF FP16
        ↓
Q8_0 Quantization
        ↓
FastContext-1.0-4B-SFT-Q8_0.gguf

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Conversion Commands

Clone llama.cpp

git clone https://github.com/ggml-org/llama.cpp.git
cd llama.cpp

cmake -B build
cmake --build build --config Release -j

Download Original Model

git lfs install
git clone https://huggingface.co/microsoft/FastContext-1.0-4B-SFT

Convert to GGUF (FP16)

python convert_hf_to_gguf.py \
    FastContext-1.0-4B-SFT \
    --outfile FastContext-1.0-4B-SFT-F16.gguf \
    --outtype f16

Quantize to Q8_0

./build/bin/llama-quantize \
    FastContext-1.0-4B-SFT-F16.gguf \
    FastContext-1.0-4B-SFT-Q8_0.gguf \
    Q8_0

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Usage

llama.cpp

./llama-cli \
-m FastContext-1.0-4B-SFT-Q8_0.gguf \
-p "What is FastContext?"

LM Studio

1. Download the GGUF file
2. Import into LM Studio
3. Load the model
4. Start chatting

Ollama

Create a Modelfile:

FROM FastContext-1.0-4B-SFT-Q8_0.gguf

Build:

ollama create fastcontext-q8 -f Modelfile

Run:

ollama run fastcontext-q8

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Hardware Requirements

Minimum

• 8 GB RAM
• Modern CPU
• SSD Storage

Recommended

• 16+ GB RAM
• Multi-core CPU
• Dedicated GPU

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Repository Structure

.
├── FastContext-1.0-4B-SFT-Q8_0.gguf
├── README.md
└── LICENSE

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Credits

• Original Model: Microsoft AI
• Base Model: Qwen3-4B
• GGUF Conversion & Quantization: Senthil Kumaran

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License

This quantized model follows the same MIT License as the original FastContext model.

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Disclaimer

This repository only provides a GGUF Q8_0 quantized version of the original model. All rights and credits belong to Microsoft and the FastContext authors.