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Open-weight model · Text generation

Qwen3.8-Flash-Next-oQ4e-mix6-mtp

by Umixer umixer/Qwen3.8-Flash-Next-oQ4e-mix6-mtp

Qwen3.8-Flash-Next-oQ4e-mix6-mtp is an open-weight model for text generation from Umixer, released under other. It has 180B parameters and a 262,144-token context. At 16-bit it needs about 432 GB of GPU memory, which fits on 2x MI325X from $4.00 an hour; at 4-bit, 108 GB on 1x MI300X from $1.85, at the lowest prices in the SAVRN Index. It draws 80 downloads a month.

Goal: oQ4e speed and memory footprint, oQ5e-or-better quality reaching toward oQ6e.

Parameters180B
Context262,144
Weights125.4 GB
Licenseother
AccessOpen weights
Monthly Downloads80

Runs On

What it takes to serve Qwen3.8-Flash-Next-oQ4e-mix6-mtp (180B parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

PrecisionWeightsMemory neededCheapest setupPer hourAlso fits
16-bit 360.0 GB 432.0 GB 2x MI325X (256 GB)
Vultr
$4.00 2x MI355X $5.18 · 3x MI300X $5.55
8-bit 180.0 GB 216.0 GB 1x MI325X (256 GB)
Vultr
$2.00 1x MI355X $2.59 · 2x MI300X $3.70
4-bit 90.0 GB 108.0 GB 1x MI300X (192 GB)
Vultr
$1.85 1x MI325X $2.00 · 1x MI355X $2.59

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Oct 18, 2026.

Qwen3.8-Flash-Next-oQ4e-mix6-mtp on every accelerator the SAVRN Index prices, at every precision

Model Card

Goal: oQ4e speed and memory footprint, oQ5e-or-better quality reaching toward oQ6e. Runs at ~73–75 GB resident with ~82→66 tok/s decode on a 128 GB Apple Silicon host — the speed/RAM economics of a 4-bit build, at an accuracy tier equal to or above uniform oQ5e. How: a mixed-precision MLX build of Qwen3.8-Flash-Next, assembled by component-wise byte-copy from Jundot's native oQ quantizations — zero re-quantization in the entire package. Every tensor is byte-identical to its source, so quality is traceable, not re-derived. Uniform-bit quantization pays accuracy where it isn't needed (middle layers) and loses it where it hurts (first/last layers, n-gram table, attention). A Data-Free…

Excerpt from the card by Umixer, licensed other.

Configuration

Architecture
Qwen4ExpForConditionalGeneration
Context length (tokens)
262,144
Layers
48
Hidden size
2,560
Attention heads
24
Key/value heads
2
Head dimension
256
Vocabulary size
248,320
Experts
512
Experts active per token
10
Model type
qwen4_exp

Identity and Version

Repository
umixer/Qwen3.8-Flash-Next-oQ4e-mix6-mtp
Publisher
Umixer
Task
Text generation
Modality
Text
Library
mlx
Parameters
180B parameters
Languages
mlx, oq, mtp
Revision
fb428e9cbfa1afcaeb8c5f6431edc48cffc3c241
First published
2026-10-10
Last updated
2026-10-12

Files and Weights

39 files, 125.4 GB in total. The weights are 24 files totalling 125.4 GB in safetensors.

Weights24 files · 125.4 GB
Configuration6 files · 641.8 KB
Tokenizer4 files · 22.9 MB
Documentation3 files · 24.3 KB
Other1 file · 9.0 KB
Repository1 file · 1.6 KB
Every file
FileTypeSizeSHA-256
model-00001-of-00024.safetensorsWeights5.2 GB 81e0d8324948
model-00002-of-00024.safetensorsWeights5.2 GB 65b59879a2b7
model-00003-of-00024.safetensorsWeights5.2 GB d70fde905261
model-00004-of-00024.safetensorsWeights5.2 GB 10dc74a6b070
model-00005-of-00024.safetensorsWeights5.2 GB 6dfab5b4015c
model-00006-of-00024.safetensorsWeights5.2 GB 4f1dc8cf5948
model-00007-of-00024.safetensorsWeights5.2 GB 56fd8c2ba7fa
model-00008-of-00024.safetensorsWeights5.2 GB f53819487f9e
model-00009-of-00024.safetensorsWeights5.2 GB 3bb498555502
model-00010-of-00024.safetensorsWeights5.2 GB 04deefa17e25
model-00011-of-00024.safetensorsWeights5.3 GB 78a9420f6c3b
model-00012-of-00024.safetensorsWeights5.3 GB 5f9d0b8d9de4
model-00013-of-00024.safetensorsWeights5.3 GB 92e43ac19d82
model-00014-of-00024.safetensorsWeights5.3 GB da754d9034b8
model-00015-of-00024.safetensorsWeights5.3 GB e45978bfb5ad
model-00016-of-00024.safetensorsWeights5.3 GB 9aa790f4d3d3
model-00017-of-00024.safetensorsWeights5.3 GB 1af2d2df7a11
model-00018-of-00024.safetensorsWeights5.3 GB 92f4186da853
model-00019-of-00024.safetensorsWeights5.0 GB 5a3d4eeab9c7
model-00020-of-00024.safetensorsWeights5.4 GB a1692eb98532
model-00021-of-00024.safetensorsWeights5.5 GB 3b359d3297d3
model-00022-of-00024.safetensorsWeights5.5 GB e4ca3d154c1c
model-00023-of-00024.safetensorsWeights5.4 GB 36f67509710d
model-00024-of-00024.safetensorsWeights4.8 GB b0c120819198
config.jsonConfiguration166.7 KB —
generation_config.jsonConfiguration202 B —
model.safetensors.index.jsonConfiguration405.2 KB —
oq_imatrix_report.jsonConfiguration68.3 KB —
preprocessor_config.jsonConfiguration390 B —
processor_config.jsonConfiguration991 B —
LICENSEDocumentation3.2 KB —
README.mdDocumentation10.9 KB —
README_zh.mdDocumentation10.1 KB —
chat_template.jinjaOther9.0 KB —
.gitattributesRepository1.6 KB —
merges.txtTokenizer3.4 MB —
tokenizer.jsonTokenizer12.8 MB 0997f410c57a
tokenizer_config.jsonTokenizer17.9 KB —
vocab.jsonTokenizer6.7 MB —

License and Download

License
other
Access
Open weights, no gate
Download size
125.4 GB
Download from Umixer

Released by Umixer through its official repository on Hugging Face.

Built From

Memory Requirements

PrecisionWeights in memory
As published125.4 GB
16-bit360.0 GB
8-bit180.0 GB
4-bit90.0 GB

Weights only, from the published parameter count; the key-value cache and runtime add to this.

Questions About Qwen3.8-Flash-Next-oQ4e-mix6-mtp

How much GPU memory does Qwen3.8-Flash-Next-oQ4e-mix6-mtp need?

About 432 GB at 16-bit and 108 GB at 4-bit: the weights (180B parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run Qwen3.8-Flash-Next-oQ4e-mix6-mtp on?

At 16-bit, 2x MI325X from $4.00 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

What license is Qwen3.8-Flash-Next-oQ4e-mix6-mtp released under?

other, as its publisher declares it. Read the license text before commercial use.

What is Qwen3.8-Flash-Next-oQ4e-mix6-mtp's context length?

262,144 tokens, from the maximum position embeddings in its published configuration.

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