Qwen3.6 27B MTPLX Optimized Quality
This is the MTPLX Optimized Quality artifact for Qwen3.6 27B.
Policy:
- Target trunk: true flat 8-bit MLX affine quantization, group64.
- MTP auxiliary tensors (
mtp.fc, norms, scales/biases, and non-linear tensors) are preserved in BF16 where applicable.
This is intended as the higher-quality sibling to Qwen3.6-27B-MTPLX-Optimized-Speed. It favors the Flat8 target and calibrated INT8 proposal sidecar instead of the smaller speed-focused artifact.
MTPLX
mtplx start --model Youssofal/Qwen3.6-27B-MTPLX-Optimized-Quality
The artifact includes mtplx_runtime.json and mtp/weights.safetensors, so MTPLX can inspect and route it through the native Qwen MTP backend while generic MLX vision loaders only glob the base model shards.
Local bakeoff snapshot
Measured on the local M5 Max max-fan Flappy 2k depth-3 bakeoff:
| Metric | Value |
|---|---|
| Decode TPS | 33.63 |
| Acceptance D1/D2/D3 | 95.6% / 85.3% / 74.1% |
| Verify ms/call | 88.1 ms |
| Peak memory | 27.62 GiB |
This row is a local release-readiness check, not a broad public hardware claim.
Provenance
- Base model:
Qwen/Qwen3.6-27B - MTPLX staging manifest:
mtplx_upload_manifest.json
Vision compatibility
This revision keeps the optimized MTPLX draft sidecar at mtp/weights.safetensors so generic VLM loaders see only the normal Qwen vision/text weight shards at the repository root. The base trunk is the MLX 8-bit Qwen3.6 vision layout; MTPLX reads the draft sidecar through config.json.