llmfan46 · vision language · mixture of experts

Qwen3.5-35B-A3B-uncensored-heretic-v2-Native-MTP-Preserved

llmfan46/Qwen3.5-35B-A3B-uncensored-heretic-v2-Native-MTP-Preserved

Qwen3.5-35B-A3B-uncensored-heretic-v2-Native-MTP-Preserved at Q4_K_M is exactly 21,779,256,640 bytes (20.28 GiB / 21.78 GB) — an effective 4.963 bits per weight, not the nominal 4. Its KV cache at 32K is 0.63 GiB.

From the file· summed from 1 file(s)From the file· KV per layer
Parameters
35.1B
total, not active
Architecture
clip
40 layers
Context
262,144
native (config.json)
License
apache-2.0

Shipped quantizations

exact bytes, summed from published files
QuantSizeExact bytesEffective bpwTensorsPublisher
I1-Q2_K12.34 GiB13,246,130,8803.018mradermacher
I1-Q3_K_S14.48 GiB15,545,983,6803.542mradermacher
I1-IQ3_S14.54 GiB15,614,362,3043.558mradermacher
I1-IQ3_M14.72 GiB15,805,571,7763.602mradermacher
I1-Q3_K_M15.99 GiB17,165,607,6163.912mradermacher
Q3_K_M16.08 GiB17,266,398,5283.935llmfan46
I1-Q3_K_L17.28 GiB18,551,038,6564.227mradermacher
Q3_K_L17.37 GiB18,651,829,5684.250llmfan46
I1-IQ4_XS17.86 GiB19,178,470,0804.370mradermacher
I1-Q4_018.88 GiB20,275,174,0804.620mradermacher
I1-Q4_K_S18.97 GiB20,365,810,3684.641mradermacher
Q4_K_S19.03 GiB20,432,655,6804.656llmfan46
Q8_020.21 GiB21,696,283,0404.944llmfan46
I1-Q4_K_M20.22 GiB21,712,411,3284.948mradermacher
Q4_K_M20.28 GiB21,779,256,6404.963llmfan46
I1-Q4_120.84 GiB22,376,831,6805.099mradermacher
I1-Q5_K_S22.88 GiB24,562,703,0405.597mradermacher
Q5_K_S22.91 GiB24,597,599,5525.605llmfan46
BF1623.06 GiB24,762,139,0405.643llmfan46
I1-Q5_K_M23.61 GiB25,346,480,8325.776mradermacher
Q5_K_M23.64 GiB25,381,377,3445.784llmfan46
I1-Q6_K27.20 GiB29,207,679,6806.656mradermacher
Q6_K27.26 GiB29,269,579,0726.670llmfan46
Q8_035.21 GiB37,801,096,5128.614llmfan46
BF1666.19 GiB71,065,941,63216.194llmfan46

KV cache by context

computed per layer
ContextKV cache (f16)Flat formulaOverstated byFull / windowed / recurrent
4,0960.08 GiB0.31 GiB4.00×10 / 0 / 30
8,1920.16 GiB0.63 GiB4.00×10 / 0 / 30
16,3840.31 GiB1.25 GiB4.00×10 / 0 / 30
32,7680.63 GiB2.50 GiB4.00×10 / 0 / 30
65,5361.25 GiB5.00 GiB4.00×10 / 0 / 30
131,0722.50 GiB10.00 GiB4.00×10 / 0 / 30

30 of 40 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 18.39 GiB. The real file is 20.28 GiB, because a quantization is a mixture and some tensors are always kept at higher precision.

Architecture

from config.json
Layers
40
Attention heads
16
KV heads
2
Head dim
256
Hidden size
2048
Vocab
248,320
Sliding window
none
SWA period
MLA
no
Experts
256
Experts per token
8
use_sliding_window

Questions people ask

How much VRAM does Qwen3.5-35B-A3B-uncensored-heretic-v2-Native-MTP-Preserved need?
Q4_K_M is exactly 21,779,256,640 bytes (20.28 GiB) in weights. Add the KV cache, which depends on your context length, plus roughly half a gigabyte of runtime overhead.
How large is Qwen3.5-35B-A3B-uncensored-heretic-v2-Native-MTP-Preserved's KV cache?
0.63 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.
Is Qwen3.5-35B-A3B-uncensored-heretic-v2-Native-MTP-Preserved a mixture-of-experts model?
Yes — 256 experts, 8 routed per token. Every expert must be resident, but only the routed ones are read per token, which is why its memory requirement and its speed behave very differently.
Which quantization of Qwen3.5-35B-A3B-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.
Qwen3.5-35B-A3B-uncensored-heretic-v2-Native-MTP-Preserved — VRAM requirements, exact quant sizes — ossmodeldb