Skywork · vision language

Skywork-R1V3-38B

Skywork/Skywork-R1V3-38B

Skywork-R1V3-38B at Q4_K_M is exactly 19,848,566,240 bytes (18.49 GiB / 19.85 GB) — an effective 4.136 bits per weight, not the nominal 4.

From the file· summed from 1 file(s)From the file· KV per layer
Parameters
38.4B
Architecture
qwen2
null layers
Context
—
native (config.json)
License
mit

Shipped quantizations

● exact bytes, summed from published files
QuantSize●Exact bytes●Effective bpw●Tensors●Publisher
IQ2_XXS8.41 GiB9,026,213,6001.881—bartowski
IQ2_XS9.27 GiB9,955,514,0802.075—bartowski
IQ2_S9.67 GiB10,385,329,8562.164—bartowski
IQ2_M10.49 GiB11,262,201,5362.347—bartowski
Q2_K11.47 GiB12,310,797,0562.566—bartowski
IQ3_XXS11.96 GiB12,837,031,6162.675—bartowski
Q2_K_L12.17 GiB13,069,167,0402.724—bartowski
IQ3_XS12.76 GiB13,703,008,9922.856—bartowski
Q3_K_S13.40 GiB14,389,826,2722.999—bartowski
IQ3_M13.79 GiB14,807,618,2723.086—bartowski
Q3_K_M14.84 GiB15,932,543,7123.320—bartowski
Q3_K_L16.06 GiB17,244,574,1763.594—lmstudio-community
Q3_K_L16.06 GiB17,244,574,4323.594—bartowski
IQ4_XS16.48 GiB17,690,446,4963.687—bartowski
IQ4_NL17.40 GiB18,679,404,2563.893—bartowski
Q4_017.42 GiB18,708,240,0963.899—bartowski
Q4_K_S17.49 GiB18,781,640,4163.914—bartowski
Q4_K_M18.49 GiB19,848,566,2404.136—lmstudio-community
Q4_K_M18.49 GiB19,848,566,4964.136—bartowski
Q4_K_L19.02 GiB20,424,927,6804.256—bartowski
Q4_119.22 GiB20,636,348,2564.301—bartowski
Q5_K_S21.08 GiB22,635,235,2964.717—bartowski
Q5_K_M21.66 GiB23,259,138,0164.847—bartowski
Q5_K_L22.11 GiB23,738,427,8404.947—bartowski
Q6_K25.04 GiB26,882,870,0165.602—lmstudio-community
Q6_K25.04 GiB26,882,870,2725.602—bartowski
Q6_K_L25.39 GiB27,259,021,7605.681—bartowski
Q8_032.43 GiB34,816,633,0247.256—lmstudio-community
Q8_032.43 GiB34,816,633,2807.256—bartowski
BF162 shards61.03 GiB65,527,974,01613.656—bartowski

Compare with

same modality, comparable size
vs Qwen3.6-35B-A3Bvs Qwen3.6-27B-Fable-Fusion-711-Uncensored-Heretic-NM-DAU-MTPvs Qwen3.5-9Bvs gemma-4-26B-A4B-itvs gemma-4-12B-itvs Qwen3.5-4BAll alternatives →Will it fit on my card? →

Will it run on your card?

full quant x context sweep
By VRAM:8GB12GB16GB24GB32GB48GB
Radeon RX 6500 XT 4GBGeForce RTX 3050 6GBGeForce RTX 5050 8GBGeForce RTX 3080 10GBGeForce RTX 2080 Ti 11GBGeForce RTX 5070 12GBGeForce RTX 5060 Ti 16GBApple M3 Pro 18GBGeForce RTX 3080 Ti 20GBGeForce RTX 5090 D V2 24GBGeForce RTX 5090 D 32GBApple M5 Max 36GBApple M5 Pro 48GBApple M5 Max 64GBApple M3 Ultra 96GBApple M5 Max 128GBApple M2 Ultra 192GBApple M3 Ultra 256GBApple M3 Ultra 512GB

Why other calculators give a different number

A parameters × bits ÷ 8 estimate puts Q4_K_M at roughly 20.11 GiB. The real file is 18.49 GiB, because a quantization is a mixture and some tensors are always kept at higher precision.

Architecture

from config.json
Layers
—
Attention heads
—
KV heads
—
Head dim
—
Hidden size
5120
Vocab
—
Sliding window
none
SWA period
—
MLA
no
Experts
—
Experts per token
—
use_sliding_window
—

Questions people ask

How much VRAM does Skywork-R1V3-38B need?
Q4_K_M is exactly 19,848,566,240 bytes (18.49 GiB) in weights. Add the KV cache, which depends on your context length, plus roughly half a gigabyte of runtime overhead.
Which quantization of Skywork-R1V3-38B should I use?
Q4_K_M is the usual default. Pick the largest quantization that fits your card at the context you actually need — the table above gives exact sizes for every one published.