Qwen3.8-Flash-Next-oQ3e-mtp

Updated 2026-10-29: Re-quantized with the improved oQe quantization in oMLX 0.7.3. Please re-download if you have an earlier copy.

This model was quantized using oQ (oMLX v0.7.3) mixed-precision quantization with improved oQe (jundot/omlx#4930).

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 3.700 bits/weight for the language backbone and 4.114 bits/weight for the complete checkpoint.

Quantization and Bit Distribution

oQ3e 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. Below oQ4, the N-gram embedding table stays at 4 bits and is left out of the bit budget, because oMLX can serve it from SSD instead of memory.

Storage format Logical weights Share of total Tensor storage Effective bits/weight
Affine 3-bit, group 64 120.796B 67.109% 49.219 GiB 3.50
Affine 4-bit, group 64 2.517B 1.398% 1.318 GiB 4.50
Affine 8-bit, group 128 0.241B 0.134% 0.231 GiB 8.25
Affine 8-bit, group 64 4.731B 2.628% 4.681 GiB 8.50
I64 0.000B 0.000% 0.000 GiB 64.00
BF16 0.516B 0.287% 0.961 GiB 16.00
N-gram affine 4-bit, group 32 51.200B 28.445% 29.802 GiB 5.00
Total 180.000B 100% 86.213 GiB 4.114

Storage Breakdown

Component Logical weights Storage
Language backbone 125.744B 58.159 GB / 54.165 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 1.513 GB / 1.409 GiB
Total 180.000B 92.570 GB / 86.213 GiB

License

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

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