Qwen3.8-Flash-Next-oQ4e-mtp

This model is an MLX quantization of Qwen/Qwen3.8-Flash-Next, made with oQe (oMLX v0.7.0) imatrix-weighted mixed-precision quantization.

See also the standard oQ version: d9beuD/Qwen3.8-Flash-Next-oQ4-mtp.

Quantization details

  • Base model: Qwen/Qwen3.8-Flash-Next
  • Model type: qwen4_exp
  • oQ level: 4
  • Default bits: 4
  • Group size: 64 (default; some modules use 32 or 128)
  • Effective size: ~4.72 bits per weight, 106 GB
  • dtype: bfloat16 (non-quantized weights, scales and biases)
  • MTP: multi-token prediction head preserved (mtp_num_hidden_layers: 1)
  • Vision encoder: included
  • N-gram embedding table: included
  • Format: MLX safetensors

Share of quantized parameters by bit width:

Bits Share
8-bit 0.9%
6-bit 0.3%
5-bit 0.8%
4-bit 98.0%

Importance matrix (oQe)

  • Calibration set: oqe_code_multilingual, 1,024 samples x 512 tokens (adaptive: 128 to 1,024 samples, 8 rounds)
  • Collection: streamed one decoder layer at a time from the bf16 checkpoint (no proxy model)
  • Expert coverage: 75,240 / 75,264 routed experts activated (99.97%); the 24 experts that received no calibration tokens use standard oQ quantization
  • Full details in oq_imatrix_report.json

Sensitivity model

oQ's layer-sensitivity map was measured on Jundot/Qwen3.8-Flash-Next-oQ4e-mtp (128 samples x 256 tokens, code_multilingual calibration set) instead of the full bf16 checkpoint, which does not fit in memory on a 128 GB Mac.

Requirements

About 106 GB of weights: this model needs a Mac with more unified memory than that (e.g. 128 GB).

License

This model inherits the Qwen Community License 1.0 from the base model Qwen/Qwen3.8-Flash-Next.

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