# User runs Qwen Flash Next Q4 on Mac Mini M5 with SSD streaming

Digest AI · Hardware & Compute · published 2026-10-05T06:44:55Z

Canonical: https://digestai.news/story/user-runs-qwen-flash-next-q4-on-mac-mini-m5-with-ssd-streaming

## Summary

A Reddit user detailed how they ran Qwen Flash Next Q4, a 125 billion parameter open-weight model, on a Mac Mini M5 with 64GB RAM and SSD streaming. The setup leverages hybrid linear attention and an n-gram lookup table to improve efficiency, with key optimizations including carousel buffering (+30% prompt processing speed) and dual SSD concurrency (+15% speed for read/write).

The user reported practical use cases like replacing Claude Sonnet for a private AI assistant with tool integrations (browser, Google MCP) and running 8+ hour coding sessions. Testing involved real-world workflows—120 agent turns, 80 unseen prompts, and 12 long prompts—with quality measured against a 20-task exam (18/20 score). The project notes ongoing issues with speculative decoding consistency and highlights room for further engine improvements, such as GPU utilization during writing (currently 40% idle).

## Key points

- Carousel buffering boosts prompt processing by +30%, dual SSDs add +15% read/write speed, but short prompts (<1k tokens) see no benefit
- User replaces Claude Sonnet for local AI assistant with tools and runs 8+ hour coding sessions at no incremental cost

## Why it matters

Demonstrates viable local AI inference for large models on consumer hardware, bridging the gap between cloud speeds (40–60 tk/s) and local efficiency (200–800 tk/s for small models). Optimizations like SSD streaming and carousel buffering could lower costs for long-running tasks.

## Sources

1. [I got Qwen Flash Next Q4 running on a Mac Mini m5 64gb with ssd streaming](https://freshworktree.com/run-qwen-flash-next-q4-on-a-mac-mini-360-tks-read-in-17-5-tks-decode) (freshworktree.com, 2026-10-05)

Part of the developing story: [AI Audio Arms Race Accelerates with Low‑Cost Real‑Time Voice](https://digestai.news/thread/nari-unveils-qwen3tts-and-qwen3asr-with-low-latency-and-competitive-pricing) (4 stories)

## Cite

Digest AI, "User runs Qwen Flash Next Q4 on Mac Mini M5 with SSD streaming", 5 October 2026, https://digestai.news/story/user-runs-qwen-flash-next-q4-on-mac-mini-m5-with-ssd-streaming

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