Can Swift 1.5 Qwen3.8 Flash Next run on Mac mini M5 Pro 48GB?
NO — Won’t fit
Q2_0 · 4K context · formula estimate
What this means
The checked Q2_0 build needs about 79.4GB, above this Mac's conservative 43.2GB working budget.
−36.2GB short
above the working budget
79.4GB
needed at Q2_0
Q2_0
quant selected
0GB
working headroom
needs 79.4 GBworking budget 43.2 GB · short 36.2 GB
Where the memory goes
| Component | Detail | GB |
|---|---|---|
| Model weights | Q2_0 GGUF (66.5 GB) + mmap overhead | 69.8 |
| KV cache | 4K context window | 8.8 |
| Runtime | macOS inference app + compute buffers | 0.8 |
| Total needed | at Q2_0, 4K context | 79.4 |
| Working budget | 48 GB unified memory − conservative macOS reserve | 43.2 |
| Headroom | memory shortfall | −36.2 |
Pick your quant
| Quant | Download | Memory | Estimated speed | Verdict |
|---|---|---|---|---|
| Q2_0 ★ | 66.5 GB | 79.4 GB | — | ✕ Won't fit |
Other models on this Mac
Swift 1.5 Qwen3.8 Flash Next on other Mac mini M5 Pro configurations
FAQ
Can the Mac mini M5 Pro · 48GB run Swift 1.5 Qwen3.8 Flash Next?
Not with the quants currently tracked. The selected Q2_0 build needs about 79.4GB, above the 43.2GB working budget.
Which Swift 1.5 Qwen3.8 Flash Next quant should I use on this Mac?
None of the tracked quants fit this configuration safely. Choose a smaller model or a Mac with more unified memory.
Which app should I use for Swift 1.5 Qwen3.8 Flash Next on this Mac?
Start with LM Studio. This page gives the complete point-and-click walkthrough.
Are these speeds measured on a Mac mini M5 Pro?
No. The range is a formula estimate based on memory bandwidth, model size, active parameters, cooling, and a 4K context. The app, backend, thermals, and prompt can change real performance.