llmfan46 · vision language

Qwen3.6-27B-uncensored-heretic-v2-Native-MTP-Preserved

llmfan46/Qwen3.6-27B-uncensored-heretic-v2-Native-MTP-Preserved

Qwen3.6-27B-uncensored-heretic-v2-Native-MTP-Preserved at Q4_K_M is exactly 17,211,797,600 bytes (16.03 GiB / 17.21 GB) — an effective 5.033 bits per weight, not the nominal 4. Its KV cache at 32K is 2.00 GiB.

From the file· summed from 1 file(s)From the file· KV per layer
Parameters
27.4B
Architecture
qwen35
64 layers
Context
262,144
native (config.json)
License
apache-2.0

Shipped quantizations

exact bytes, summed from published files
QuantSizeExact bytesEffective bpwTensorsPublisher
I1-Q2_K10.12 GiB10,864,596,4163.177mradermacher
I1-Q3_K_S11.41 GiB12,256,540,0963.584mradermacher
I1-IQ3_S11.74 GiB12,602,611,1363.685mradermacher
I1-IQ3_M11.89 GiB12,768,335,2963.734mradermacher
I1-Q3_K_M12.57 GiB13,500,741,0563.948mradermacher
Q3_K_M13.14 GiB14,105,493,6004.125866llmfan46
I1-Q3_K_L13.56 GiB14,559,802,8164.258mradermacher
Q3_K_L14.12 GiB15,164,555,3604.435llmfan46
I1-IQ4_XS14.26 GiB15,309,043,1364.477mradermacher
I1-Q4_014.68 GiB15,760,422,3364.609mradermacher
I1-Q4_K_S14.74 GiB15,825,302,9764.628mradermacher
Q4_K_S15.11 GiB16,226,381,9204.745llmfan46
I1-Q4_K_M15.66 GiB16,810,718,6564.916mradermacher
Q4_K_M16.03 GiB17,211,797,6005.033866llmfan46
I1-Q4_116.15 GiB17,343,772,0965.072mradermacher
I1-Q5_K_S17.67 GiB18,971,686,3365.548mradermacher
Q5_K_S17.86 GiB19,181,072,4805.609llmfan46
I1-Q5_K_M18.19 GiB19,535,705,5365.713mradermacher
NVFP418.30 GiB19,653,899,2005.747llmfan46
Q5_K_M18.39 GiB19,745,091,6805.774866llmfan46
I1-Q6_K20.89 GiB22,431,004,0966.560mradermacher
Q6_K21.24 GiB22,802,407,5206.668866llmfan46
Q8_027.05 GiB29,047,087,2008.494866llmfan46
Q8_02 shards34.80 GiB37,362,636,54410.926llmfan46
BF1650.90 GiB54,657,736,80015.984llmfan46

KV cache by context

computed per layer
ContextKV cache (f16)Flat formulaOverstated byFull / windowed / recurrent
4,0960.25 GiB1.00 GiB4.00×16 / 0 / 48
8,1920.50 GiB2.00 GiB4.00×16 / 0 / 48
16,3841.00 GiB4.00 GiB4.00×16 / 0 / 48
32,7682.00 GiB8.00 GiB4.00×16 / 0 / 48
65,5364.00 GiB16.00 GiB4.00×16 / 0 / 48
131,0728.00 GiB32.00 GiB4.00×16 / 0 / 48

48 of 64 layers use linear attention, which keeps a fixed-size recurrent state instead of a per-token cache. Those layers do not grow with context at all — treating them as ordinary attention, as a flat formula does, overstates this model's cache by roughly 4.0× at long context.

Compare with

same modality, comparable size

Will it run on your card?

full quant x context sweep

Why other calculators give a different number

A parameters × bits ÷ 8 estimate puts Q4_K_M at roughly 14.33 GiB. The real file is 16.03 GiB, because a quantization is a mixture and some tensors are always kept at higher precision.

Architecture

from config.json
Layers
64
Attention heads
24
KV heads
4
Head dim
256
Hidden size
5120
Vocab
248,320
Sliding window
none
SWA period
MLA
no
Experts
Experts per token
use_sliding_window

Questions people ask

How much VRAM does Qwen3.6-27B-uncensored-heretic-v2-Native-MTP-Preserved need?
Q4_K_M is exactly 17,211,797,600 bytes (16.03 GiB) in weights. Add the KV cache, which depends on your context length, plus roughly half a gigabyte of runtime overhead.
How large is Qwen3.6-27B-uncensored-heretic-v2-Native-MTP-Preserved's KV cache?
2.00 GiB at 32K context with an f16 cache, computed per layer. Quantizing the cache to q8_0 roughly halves it, which is often the difference between a context length fitting and not.
Which quantization of Qwen3.6-27B-uncensored-heretic-v2-Native-MTP-Preserved 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.