Fara1.5-27B - GGUF Quants & Multimodal Projectors

This repository contains GGUF quantizations and multimodal projector (mmproj) files for microsoft/Fara1.5-27B.

  • Original Model: microsoft/Fara1.5-27B
  • Developer: Microsoft Research AI Frontiers
  • Base Architecture: Qwen3.5-27B (Multimodal Vision-Language / Computer Use Agent)
  • Quantization Format: GGUF (Q3_K_M, Q4_K_M, Q4_K_S, Q5_K_M, Q5_K_S, Q6_K, Q8_0) + mmproj vision projectors

Repository Files

Model Weights (.gguf)

File Name Size Quant Method Description
Fara1.5-27B.Q3_K_M.gguf ~13.3 GB Q3_K_M 3-bit medium. Lowest VRAM footprint.
Fara1.5-27B.Q4_K_S.gguf ~15.6 GB Q4_K_S 4-bit small. Balanced size and performance.
Fara1.5-27B.Q4_K_M.gguf ~16.5 GB Q4_K_M 4-bit medium. Recommended balance of speed, memory usage, and quality.
Fara1.5-27B.Q5_K_S.gguf ~18.7 GB Q5_K_S 5-bit small. High quality, lower loss.
Fara1.5-27B.Q5_K_M.gguf ~19.2 GB Q5_K_M 5-bit medium. Superior precision.
Fara1.5-27B.Q6_K.gguf ~22.1 GB Q6_K 6-bit quantization. Extremely close to native FP16 accuracy.
Fara1.5-27B.Q8_0.gguf ~28.6 GB Q8_0 8-bit quantization. Maximum accuracy.

Multimodal Vision Projectors (.mmproj-*.gguf)

(Required to pass screenshot images into the model in llama.cpp)

File Name Size Format Description
Fara1.5-27B.mmproj-q8_0.gguf ~629 MB Q8_0 Quantized vision projector (recommended for low VRAM).
Fara1.5-27B.mmproj-bf16.gguf ~931 MB BF16 Native BFloat16 vision projector.
Fara1.5-27B.mmproj-f16.gguf ~931 MB FP16 Standard FP16 vision projector.

Quickstart Guide

Because Fara1.5-27B processes screenshots, you must pass both a model weight file (-m) AND a multimodal projector file (--mmproj) during inference in llama.cpp.

1. Running with llama.cpp

# Clone and build llama.cpp
git clone [https://github.com/ggml-org/llama.cpp](https://github.com/ggml-org/llama.cpp)
cd llama.cpp && cmake -B build -DGGML_CUDA=ON && cmake --build build --config Release -j

# Download the model and vision projector from this repository
huggingface-cli download Abiray/Fara1.5-27B-GGUF Fara1.5-27B.Q4_K_M.gguf --local-dir .
huggingface-cli download Abiray/Fara1.5-27B-GGUF Fara1.5-27B.mmproj-f16.gguf --local-dir .

# Serve with llama-server
./build/bin/llama-server \
  -m Fara1.5-27B.Q4_K_M.gguf \
  --mmproj Fara1.5-27B.mmproj-f16.gguf \
  -ngl 99 \
  --port 8000 \
  -c 262144
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