Qwen3.8-Flash-Next-oQ4e-mtp

Updated 2026-10-11: Re-quantized with Improved oQe Quantization. Please re-download if you have an earlier copy.

This model was quantized using oQ (oMLX v0.7.1) mixed-precision quantization with Improved oQe Quantization (jundot/omlx#4385).

A mixed-precision MLX checkpoint of Qwen/Qwen3.8-Flash-Next, an experimental preview of the architecture behind Qwen4: a mixture-of-experts vision-language model with 125B parameters and 6B activated, plus a 51B n-gram embedding and a 4B MTP module, that pairs Gated DeltaNet with Qwen Sparse Attention (QSA) and uses Gated Residual streams. It includes the language model, the n-gram embedding, the vision encoder and the multi-token prediction (MTP) head.

The effective average is 4.724 bits/weight for the complete checkpoint.

KL Divergence from the Original Model

Mean next-token KL divergence from the original BF16 model on the oMLX benchmark corpora (lower is better). Each corpus is scored on 16 windows of 2,048 tokens spread across the text (32,768 tokens).

Corpus Previous oQ4e (2026-08-27) Updated oQ4e Change
Code (Python) 0.0877 0.0776 -11.6%
Novel (English) 0.1909 0.1713 -10.2%

Quantization and Bit Distribution

oQ4e allocates bits by measured layer sensitivity, then rounds each group with an importance matrix (1024 samples x 512 tokens) and a weighted least-squares refit of its scale and bias.

Storage format Logical weights Share of total Tensor storage Effective bits/weight
Affine 4-bit, group 32 51.200B 28.445% 29.802 GiB 5.00
Affine 4-bit, group 64 124.724B 69.291% 65.339 GiB 4.50
Affine 5-bit, group 128 0.981B 0.545% 0.600 GiB 5.25
Affine 5-bit, group 64 0.302B 0.168% 0.193 GiB 5.50
Affine 6-bit, group 128 0.003B 0.001% 0.002 GiB 6.25
Affine 6-bit, group 64 0.629B 0.349% 0.476 GiB 6.50
Affine 8-bit, group 128 0.241B 0.134% 0.231 GiB 8.25
Affine 8-bit, group 64 1.405B 0.780% 1.390 GiB 8.50
I64 0.000B 0.000% 0.000 GiB 64.00
BF16 0.516B 0.287% 0.961 GiB 16.00
Total 180.000B 100% 98.994 GiB 4.724

Storage Breakdown

Component Logical weights Storage
Language backbone 125.744B 71.913 GB / 66.974 GiB
N-gram embedding 51.200B 32.000 GB / 29.802 GiB
Vision encoder 0.449B 0.898 GB / 0.836 GiB
MTP head 2.607B 1.483 GB / 1.381 GiB
Total 180.000B 106.294 GB / 98.994 GiB

License

Qwen Community License 1.0, following the source model. See LICENSE.

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