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M1 ultra 128GB issus

Status: Open.

#31 In bstnxbt/dflash-mlx;

· honeyxiaoding opened on May 10, 2026

[MLX] Low speed on Qwen3.5-27B-4bit: 15.5 tok/s with 80.9% acceptance (M4 Pro 48GB)

Status: Open.

#30 In bstnxbt/dflash-mlx;

· heykb opened on May 10, 2026

Cold-start prefill is 6-15x slower than llama.cpp Q8_0 GGUF on the same model (Apple Silicon)

Status: Open.

#21 In bstnxbt/dflash-mlx;

· hanxiao opened on May 3, 2026

CLI flags --num-draft-tokens / --decode-concurrency / --prompt-concurrency / --prefill-step-size are silently no-ops

Status: Open.

#18 In bstnxbt/dflash-mlx;

· hanxiao opened on May 3, 2026

Tool calls don't work with hermes agent

Status: Open.

#16 In bstnxbt/dflash-mlx;

· coolbluewater opened on May 1, 2026

Qwen3.6-35B-A3B-8bit + DFlash improves tok/s but aborts Python process in dflash_mlx/runtime.py

Status: Open.

#9 In bstnxbt/dflash-mlx;

· gizmax opened on Apr 22, 2026

Serve a model already downloaded.

Status: Open.

#8 In bstnxbt/dflash-mlx;

· henrique-simoes opened on Apr 19, 2026

Different Prompts achieve different results

Status: Open.

#6 In bstnxbt/dflash-mlx;

· southkorea2013 opened on Apr 17, 2026

Would like some help to understand this

Status: Open.

#2 In bstnxbt/dflash-mlx;

· RayBytes opened on Apr 14, 2026