bartowski/BigQwen2.5-125B-Instruct-GGUF

Llamacpp imatrix Quantizations of BigQwen2.5-125B-Instruct

Using llama.cpp release b3821 for quantization.

Original model: https://huggingface.co/mlabonne/BigQwen2.5-125B-Instruct

All quants made using imatrix option with dataset from here

Run them in LM Studio

Prompt format

<|im_start|>system
{system_prompt}<|im_end|>
<|im_start|>user
{prompt}<|im_end|>
<|im_start|>assistant

Download a file (not the whole branch) from below:

Filename	Quant type	File Size	Split	Description
BigQwen2.5-125B-Instruct-Q8_0.gguf	Q8_0	133.22GB	true	Extremely high quality, generally unneeded but max available quant.
BigQwen2.5-125B-Instruct-Q6_K.gguf	Q6_K	111.07GB	true	Very high quality, near perfect, recommended.
BigQwen2.5-125B-Instruct-Q5_K_M.gguf	Q5_K_M	93.87GB	true	High quality, recommended.
BigQwen2.5-125B-Instruct-Q4_K_M.gguf	Q4_K_M	81.61GB	true	Good quality, default size for must use cases, recommended.
BigQwen2.5-125B-Instruct-Q4_0.gguf	Q4_0	71.12GB	true	Legacy format, generally not worth using over similarly sized formats
BigQwen2.5-125B-Instruct-Q3_K_XL.gguf	Q3_K_XL	69.05GB	true	Uses Q8_0 for embed and output weights. Lower quality but usable, good for low RAM availability.
BigQwen2.5-125B-Instruct-IQ4_XS.gguf	IQ4_XS	68.22GB	true	Decent quality, smaller than Q4_K_S with similar performance, recommended.
BigQwen2.5-125B-Instruct-Q3_K_L.gguf	Q3_K_L	67.96GB	true	Lower quality but usable, good for low RAM availability.
BigQwen2.5-125B-Instruct-Q3_K_M.gguf	Q3_K_M	64.64GB	true	Low quality.
BigQwen2.5-125B-Instruct-IQ3_M.gguf	IQ3_M	60.80GB	true	Medium-low quality, new method with decent performance comparable to Q3_K_M.
BigQwen2.5-125B-Instruct-Q3_K_S.gguf	Q3_K_S	58.88GB	true	Low quality, not recommended.
BigQwen2.5-125B-Instruct-IQ3_XXS.gguf	IQ3_XXS	54.53GB	true	Lower quality, new method with decent performance, comparable to Q3 quants.
BigQwen2.5-125B-Instruct-Q2_K_L.gguf	Q2_K_L	52.16GB	true	Uses Q8_0 for embed and output weights. Very low quality but surprisingly usable.
BigQwen2.5-125B-Instruct-Q2_K.gguf	Q2_K	50.95GB	true	Very low quality but surprisingly usable.
BigQwen2.5-125B-Instruct-IQ2_M.gguf	IQ2_M	50.29GB	true	Relatively low quality, uses SOTA techniques to be surprisingly usable.
BigQwen2.5-125B-Instruct-IQ2_XS.gguf	IQ2_XS	46.40GB	false	Low quality, uses SOTA techniques to be usable.
BigQwen2.5-125B-Instruct-IQ2_XXS.gguf	IQ2_XXS	43.65GB	false	Very low quality, uses SOTA techniques to be usable.
BigQwen2.5-125B-Instruct-IQ1_M.gguf	IQ1_M	40.59GB	false	Extremely low quality, not recommended.

Embed/output weights

Some of these quants (Q3_K_XL, Q4_K_L etc) are the standard quantization method with the embeddings and output weights quantized to Q8_0 instead of what they would normally default to.

Some say that this improves the quality, others don't notice any difference. If you use these models PLEASE COMMENT with your findings. I would like feedback that these are actually used and useful so I don't keep uploading quants no one is using.

Thanks!

Downloading using huggingface-cli

First, make sure you have hugginface-cli installed:

pip install -U "huggingface_hub[cli]"

Then, you can target the specific file you want:

huggingface-cli download bartowski/BigQwen2.5-125B-Instruct-GGUF --include "BigQwen2.5-125B-Instruct-Q4_K_M.gguf" --local-dir ./

If the model is bigger than 50GB, it will have been split into multiple files. In order to download them all to a local folder, run:

huggingface-cli download bartowski/BigQwen2.5-125B-Instruct-GGUF --include "BigQwen2.5-125B-Instruct-Q8_0/*" --local-dir ./

You can either specify a new local-dir (BigQwen2.5-125B-Instruct-Q8_0) or download them all in place (./)

Q4_0_X_X

These are NOT for Metal (Apple) offloading, only ARM chips.

If you're using an ARM chip, the Q4_0_X_X quants will have a substantial speedup. Check out Q4_0_4_4 speed comparisons on the original pull request

To check which one would work best for your ARM chip, you can check AArch64 SoC features (thanks EloyOn!).

Which file should I choose?

A great write up with charts showing various performances is provided by Artefact2 here

The first thing to figure out is how big a model you can run. To do this, you'll need to figure out how much RAM and/or VRAM you have.

If you want your model running as FAST as possible, you'll want to fit the whole thing on your GPU's VRAM. Aim for a quant with a file size 1-2GB smaller than your GPU's total VRAM.

If you want the absolute maximum quality, add both your system RAM and your GPU's VRAM together, then similarly grab a quant with a file size 1-2GB Smaller than that total.

Next, you'll need to decide if you want to use an 'I-quant' or a 'K-quant'.

If you don't want to think too much, grab one of the K-quants. These are in format 'QX_K_X', like Q5_K_M.

If you want to get more into the weeds, you can check out this extremely useful feature chart:

llama.cpp feature matrix

But basically, if you're aiming for below Q4, and you're running cuBLAS (Nvidia) or rocBLAS (AMD), you should look towards the I-quants. These are in format IQX_X, like IQ3_M. These are newer and offer better performance for their size.

These I-quants can also be used on CPU and Apple Metal, but will be slower than their K-quant equivalent, so speed vs performance is a tradeoff you'll have to decide.

The I-quants are not compatible with Vulcan, which is also AMD, so if you have an AMD card double check if you're using the rocBLAS build or the Vulcan build. At the time of writing this, LM Studio has a preview with ROCm support, and other inference engines have specific builds for ROCm.

Credits

Thank you kalomaze and Dampf for assistance in creating the imatrix calibration dataset

Thank you ZeroWw for the inspiration to experiment with embed/output

Want to support my work? Visit my ko-fi page here: https://ko-fi.com/bartowski