bartowski/DeepSeek-V2-Chat-0628-GGUF

Llamacpp imatrix Quantizations of DeepSeek-V2-Chat-0628

Using llama.cpp release b3389 for quantization.

Original model: https://huggingface.co/deepseek-ai/DeepSeek-V2-Chat-0628

All quants made using imatrix option with dataset from here

Prompt format

<｜begin▁of▁sentence｜>{system_prompt}

<｜User｜>{prompt}<｜Assistant｜><｜end▁of▁sentence｜><｜Assistant｜>

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

Filename	Quant type	File Size	Split	Description
DeepSeek-V2-Chat-0628-Q4_K_M.gguf	Q4_K_M	142.45GB	true	Good quality, default size for must use cases, recommended.
DeepSeek-V2-Chat-0628-IQ4_XS.gguf	IQ4_XS	125.56GB	true	Decent quality, smaller than Q4_K_S with similar performance, recommended.
DeepSeek-V2-Chat-0628-Q3_K_M.gguf	Q3_K_M	112.67GB	true	Low quality.
DeepSeek-V2-Chat-0628-IQ3_M.gguf	IQ3_M	103.37GB	true	Medium-low quality, new method with decent performance comparable to Q3_K_M.
DeepSeek-V2-Chat-0628-Q3_K_S.gguf	Q3_K_S	101.68GB	true	Low quality, not recommended.
DeepSeek-V2-Chat-0628-IQ3_XXS.gguf	IQ3_XXS	90.85GB	true	Lower quality, new method with decent performance, comparable to Q3 quants.
DeepSeek-V2-Chat-0628-Q2_K.gguf	Q2_K	85.95GB	true	Very low quality but surprisingly usable.
DeepSeek-V2-Chat-0628-IQ2_M.gguf	IQ2_M	76.92GB	true	Relatively low quality, uses SOTA techniques to be surprisingly usable.
DeepSeek-V2-Chat-0628-IQ2_XS.gguf	IQ2_XS	68.71GB	true	Low quality, uses SOTA techniques to be usable.
DeepSeek-V2-Chat-0628-IQ2_XXS.gguf	IQ2_XXS	61.50GB	true	Very low quality, uses SOTA techniques to be usable.
DeepSeek-V2-Chat-0628-IQ1_M.gguf	IQ1_M	52.68GB	true	Extremely low quality, not recommended.

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

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/DeepSeek-V2-Chat-0628-GGUF --include "DeepSeek-V2-Chat-0628-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/DeepSeek-V2-Chat-0628-GGUF --include "DeepSeek-V2-Chat-0628-Q8_0.gguf/*" --local-dir DeepSeek-V2-Chat-0628-Q8_0

You can either specify a new local-dir (DeepSeek-V2-Chat-0628-Q8_0) or download them all in place (./)

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.

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