Can I run it?
Can I run Qwen3.8 Flash Next on Apple M3 Pro?
Won't fit
Won't fit on Apple M3 Pro. The smallest quant UD-IQ1_S is 67.6 GB before KV cache, and usable memory is 13.0 GB.
Best quantUD-IQ1_S
Working context—
Max that fits—
Speed—Estimate from memory bandwidth, not a benchmark. Method.
Weights67.6 GB
KV cache0.00 GB
Total0.00 GB
Usable13.0 GB
Qwen3.8 Flash Next details · Apple M3 Pro page · How this estimate is made
Run commands
llama.cpp
llama-server -hf unsloth/Qwen3.8-Flash-Next-GGUF:UD-IQ1_S -c 2048 -ngl 0
Ollama
ollama run qwen3.8-flash-next
LM Studio
lms get unsloth/Qwen3.8-Flash-Next-GGUF # Then load quant UD-IQ1_S
Assumptions
- Estimate from memory bandwidth, not a benchmark. Decode speed uses 55–75% of peak bandwidth.
- KV cache is FP16. Engine overhead assumes llama.cpp (0.3 GB + 1% of the weights). Ollama is closer to 0.9 GB + 3%, LM Studio closer to 1 GB + 3%.
- No display reserve on this device.
- Usable memory for this profile is 13.0 GB.
Models that fit this machine more comfortably
- Can I run Qwen3.6 35B A3B on Apple M3 Pro? — Tight fit, UD-Q2_K_XL, 16–22 tok/s (estimate)
- Can I run Qwen3.5 35B A3B on Apple M3 Pro? — Tight fit, UD-IQ3_XXS, 15–21 tok/s (estimate)
- Can I run Kwaipilot KAT Coder V2.5 Dev on Apple M3 Pro? — Heavily degraded, IQ2_S, 18–24 tok/s (estimate)
Updated 2026-10-24. Profile on this page is the device default.