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bartowski/
Altworld_Astrea-R8-Chat-9B-GGUF

Name: Altworld_Astrea-R8-Chat-9B-GGUF
Availability: InStock

Altworld/Astrea-R8-Chat-9B

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Llamacpp imatrix Quantizations of Astrea-R8-Chat-9B by Altworld

Using llama.cpp release b10216 for quantization.

Original model: https://huggingface.co/Altworld/Astrea-R8-Chat-9B

Model details:

Parameter count: 9B
Input support: text, image (with mmproj file) - details
MTP: no
imatrix: yes - details

How to run

Prompt format

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

</think>

Don't know which to choose? Grab Q4_K_M (5.91GB) - usually a good mix of size and performance. Download instructions available here

Available files:

Filename	Quant type	File Size	Split	Description
Altworld_Astrea-R8-Chat-9B-bf16.gguf	bf16	17.92GB	false	Full BF16 weights.
Altworld_Astrea-R8-Chat-9B-Q8_0.gguf	Q8_0	9.55GB	false	Extremely high quality, generally unneeded but max available quant.
Altworld_Astrea-R8-Chat-9B-Q6_K_L.gguf	Q6_K_L	8.19GB	false	Uses Q8_0 for embed and output weights. Very high quality, near perfect, recommended.
Altworld_Astrea-R8-Chat-9B-Q6_K.gguf	Q6_K	7.70GB	false	Very high quality, near perfect, recommended.
Altworld_Astrea-R8-Chat-9B-Q5_K_L.gguf	Q5_K_L	7.48GB	false	Uses Q8_0 for embed and output weights. High quality, recommended.
Altworld_Astrea-R8-Chat-9B-Q5_K_M.gguf	Q5_K_M	6.85GB	false	High quality, recommended.
Altworld_Astrea-R8-Chat-9B-Q4_K_L.gguf	Q4_K_L	6.67GB	false	Uses Q8_0 for embed and output weights. Good quality, recommended.
Altworld_Astrea-R8-Chat-9B-Q5_K_S.gguf	Q5_K_S	6.53GB	false	High quality, recommended.
Altworld_Astrea-R8-Chat-9B-Q3_K_XL.gguf	Q3_K_XL	6.00GB	false	Uses Q8_0 for embed and output weights. Lower quality but usable, good for low RAM availability.
Altworld_Astrea-R8-Chat-9B-Q4_1.gguf	Q4_1	5.94GB	false	Legacy format, similar performance to Q4_K_S but with improved tokens/watt on Apple silicon.
Altworld_Astrea-R8-Chat-9B-Q4_K_M.gguf	Q4_K_M	5.91GB	false	Good quality, default size for most use cases, recommended.
Altworld_Astrea-R8-Chat-9B-Q4_K_S.gguf	Q4_K_S	5.60GB	false	Slightly lower quality with more space savings, recommended.
Altworld_Astrea-R8-Chat-9B-Q4_0.gguf	Q4_0	5.48GB	false	Legacy format, kept for compatibility with older tools.
Altworld_Astrea-R8-Chat-9B-IQ4_NL.gguf	IQ4_NL	5.48GB	false	Similar to IQ4_XS, but slightly larger.
Altworld_Astrea-R8-Chat-9B-IQ4_XS.gguf	IQ4_XS	5.24GB	false	Decent quality, smaller than Q4_K_S with similar performance, recommended.
Altworld_Astrea-R8-Chat-9B-Q3_K_L.gguf	Q3_K_L	5.11GB	false	Lower quality but usable, good for low RAM availability.
Altworld_Astrea-R8-Chat-9B-Q2_K_L.gguf	Q2_K_L	5.06GB	false	Uses Q8_0 for embed and output weights. Very low quality but surprisingly usable.
Altworld_Astrea-R8-Chat-9B-Q3_K_M.gguf	Q3_K_M	4.92GB	false	Low quality.
Altworld_Astrea-R8-Chat-9B-IQ3_M.gguf	IQ3_M	4.72GB	false	Medium-low quality, new method with decent performance comparable to Q3_K_M.
Altworld_Astrea-R8-Chat-9B-Q3_K_S.gguf	Q3_K_S	4.67GB	false	Low quality, not recommended.
Altworld_Astrea-R8-Chat-9B-IQ3_XS.gguf	IQ3_XS	4.56GB	false	Lower quality, new method with decent performance, slightly better than Q3_K_S.
Altworld_Astrea-R8-Chat-9B-IQ3_XXS.gguf	IQ3_XXS	4.28GB	false	Lower quality, new method with decent performance, comparable to Q3 quants.
Altworld_Astrea-R8-Chat-9B-Q2_K.gguf	Q2_K	4.06GB	false	Very low quality but surprisingly usable.
Altworld_Astrea-R8-Chat-9B-IQ2_M.gguf	IQ2_M	3.77GB	false	Relatively low quality, uses SOTA techniques to be surprisingly usable.

Download a specific file:

hf download bartowski/Altworld_Astrea-R8-Chat-9B-GGUF --include "Altworld_Astrea-R8-Chat-9B-Q4_K_M.gguf" --local-dir ./

Downloading using the Hugging Face CLI

Click to view download instructions

First, make sure you have the Hugging Face CLI installed:

pip install -U "huggingface_hub[cli]"

Download a specific file:

hf download bartowski/Altworld_Astrea-R8-Chat-9B-GGUF --include "Altworld_Astrea-R8-Chat-9B-Q4_K_M.gguf" --local-dir ./

How to run

These quants run with llama.cpp - installable in one line via llama.app:

curl -LsSf https://llama.app/install.sh | sh
llama-server -hf bartowski/Altworld_Astrea-R8-Chat-9B-GGUF:Q4_K_M

llama-server includes a built-in chat web UI, served at http://localhost:8080 by default.

These quants were made with llama.cpp release b10216 - if this model's architecture is newly supported, you'll need that release or newer to run them.

They also work in: LM Studio · koboldcpp · ramalama · Jan AI · Text Generation Web UI · LoLLMs · Atomic Chat

Multimodal

This model supports image input. Alongside the quants, this repo includes the multimodal projector files mmproj-Altworld_Astrea-R8-Chat-9B-f16.gguf and mmproj-Altworld_Astrea-R8-Chat-9B-bf16.gguf, which pair with any quant above.

llama.cpp downloads the mmproj automatically when using -hf as shown above; if you're loading files manually, pass it with --mmproj.

imatrix

All quants made using imatrix option with dataset from here. The imatrix is available here: Altworld_Astrea-R8-Chat-9B-imatrix.gguf.

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.

ARM/AVX information

llama.cpp automatically "repacks" weights into an interleaved layout at load time for faster inference on ARM and AVX machines - details in this PR. This once required downloading special Q4_0_4_4/4_8/8_8 files; those are long gone. Online repacking now covers Q4_0, IQ4_NL, and most K-quants, so no special quant choice is needed for CPU inference.

Which file should I choose?

Click here for details

An older (early 2024) but still useful write-up with charts comparing quant 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.

Hugging Face can also do this math for you: add your hardware in your Local Apps settings and the model page will show which files fit.

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, but will be slower than their K-quant equivalent, so speed vs performance is a tradeoff you'll have to decide.

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