---
license: gemma
library_name: transformers
pipeline_tag: text-generation
tags:
- conversational
- gguf
- llamacpp
---



# Gemma 2 27b Instruction Tuned - GGUF

These are GGUF quants of [google/gemma-2-27b-it](https://huggingface.co/google/gemma-2-27b-it)

Details about the model can be found at the above model page.

## Llamacpp Version

These quants were made with llamacpp tag b3408.

If you have problems loading these models, please update your software to se the latest llamacpp version.


## Perplexity Scoring

Below are the perplexity scores for the GGUF models. A lower score is better. 

| Quant Level | Perplexity Score | Standard Deviation |
|-------------|------------------|--------------------|
| F32 | 7.1853 | 0.04922 |
| BF16 | 7.1853 | 0.04922 |
| Q8_0 | 7.1879 | 0.04924 |
| Q6_K | 7.2182 | 0.04948 |
| Q5_K_M | 7.2333 | 0.04953 |
| Q5_K_S | 7.2204 | 0.04931 |
| Q4_K_M | 7.4192 | 0.05149 |
| Q4_K_S | 7.5403 | 0.05231 |
| Q3_K_L | 7.4623 | 0.05128 |
| Q3_K_M | 7.7375 | 0.05362 |
| Q3_K_S | 8.0426 | 0.05546 |


## Quant Details

This is the script used for quantization.

```bash
#!/bin/bash

# Define MODEL_NAME above the loop
MODEL_NAME="gemma-2-27b-it"

# Define the output directory
outputDir="${MODEL_NAME}-GGUF"

# Create the output directory if it doesn't exist
mkdir -p "${outputDir}"

# Make the F32 quant
f32file="${outputDir}/${MODEL_NAME}-F32.gguf"
if [ -f "${f32file}" ]; then
    echo "Skipping f32 as ${f32file} already exists."
else
    python convert_hf_to_gguf.py "~/src/models/${MODEL_NAME}" --outfile "${f32file}" --outtype "f32"
fi

# Abort out if the F32 didn't work
if [ ! -f "${f32file}" ]; then
   echo "No ${f32file} found."
   exit 1
fi

# Define the array of quantization strings
quants=("Q8_0" "Q6_K" "Q5_K_M" "Q5_K_S" "Q4_K_M" "Q4_K_S" "Q3_K_L" "Q3_K_M" "Q3_K_S")


# Loop through the quants array
for quant in "${quants[@]}"; do
    outfile="${outputDir}/${MODEL_NAME}-${quant}.gguf"
    
    # Check if the outfile already exists
    if [ -f "${outfile}" ]; then
        echo "Skipping ${quant} as ${outfile} already exists."
    else
        # Run the command with the current quant string
        ./llama-quantize "${f32file}" "${outfile}" "${quant}"
        
        echo "Processed ${quant} and generated ${outfile}"
    fi
done
```