cff-version: 1.2.0
message: "If you use this report or its evidence, cite it as below."
title: "From GGUF to Native MLX: A Reproducible Fable Migration and the Memory Policy That Blocked It"
version: 1.0.0
date-released: 2026-10-25
license: MIT
type: report
abstract: >-
  A deployment engineering report on migrating the Qwen3.8-27B TURBO-Fable
  checkpoint from GGUF to a native MLX artifact on an Apple M4 Max with 64 GiB
  unified memory. It documents a bounded CPU-only conversion with full layout
  verification, four interleaved speculative-decoding conditions on an
  8,159-token prompt, two timed-out real agent repair sessions, and a
  serving-runtime system-memory guard whose documented switch converted a
  refused ~25k-token prefill into a completed reply. No 20 tok/s floor, ranked
  intelligence claim, peer review or near-limit context qualification is made.
authors:
  - family-names: Xu
    given-names: Chengyi
  - name: "Nexora"
    website: "https://hiklik.ai"
keywords:
  - Apple Silicon
  - MLX
  - MTPLX
  - multi-token prediction
  - DFlash2
  - quantization
  - local deployment
  - memory policy
preferred-citation:
  type: report
  title: "From GGUF to Native MLX: A Reproducible Fable Migration and the Memory Policy That Blocked It"
  authors:
    - family-names: Xu
      given-names: Chengyi
    - name: "Nexora"
  year: 2026
  publisher:
    name: "Nexora Research"
references:
  - type: software
    title: "MTPLX: native MTP speculative decoding on Apple Silicon"
    authors:
      - family-names: Altoukhi
        given-names: Youssof
    version: "2.12.2"
    repository-code: "https://github.com/youssofal/MTPLX"
  - type: software
    title: "mlx-dspark: DSpark and DFlash speculative decoding for MLX"
    authors:
      - family-names: Rahim
        given-names: A.
    version: "0.19.0 and 0.20.3"
    repository-code: "https://github.com/ARahim3/mlx-dspark"