Can Mac mini M6 16 GB run Gemma 4 31B?
16 GB unified · 170 GB/s memory bandwidth · Gemma 4 31B has 31.3B parameters.
Short answer
No. It doesn't fit in memory.
Needs ≈16 GB but only ≈8.5 GB is available after the OS, other apps and Open WebUI.
Why it doesn’t fit
Even its smallest practical version (3-bit) needs about 16 GB for the model, its context memory and the runtime. After macOS (≈3.5 GB), a browser with a few tabs (≈3.0 GB) and Open WebUI (≈1.0 GB), Mac mini M6 16 GB has about 8.5 GB left, so it’s 7.1 GB short.
Ways to make it work
Close everything else
Not enough on its own: with every other app closed it’s still about 4.1 GB short.
Pick a smaller model from the same family
Get more memory
The same chip with 32 GB handles it: Acceptable.
Check your exact setup
These pages assume typical settings. A shorter context or a lighter chat app can change the answer.
Check Mac mini M6 16 GB
The same applies to every workload we rate (chat, coding questions, coding in a repository, agentic coding and long documents): they all need at least as much memory as chat.
Other models for Mac mini M6 16 GB
The best-rated models for chat on this machine.
- MiniCPM5 2B30–50 tok/sExcellent
- Qwen3.5 4B20–35 tok/sExcellent
- Llama 3.2 3B Instruct30–45 tok/sExcellent
- Qwen3 8B16–25 tok/sExcellent
- Gemma 4 E4B18–30 tok/sExcellent
- DeepSeek-R1-0528-Qwen3-8B16–25 tok/sExcellent
Cheapest machines for Gemma 4 31B
Hardware rated comfortable or better for chat, lowest price first.
- Desktop PC · Intel Arc Pro B60 24GB · 32 GB RAM$1,500 · 9–16 tok/sComfortable
- Ryzen AI Max+ 395 mini PC / Framework Desktop · 64 GB$1,600 · 10–14 tok/sComfortable
- Desktop PC · Intel Arc Pro B60 24GB · 64 GB RAM$1,628 · 9–16 tok/sComfortable
- Desktop PC · GeForce RTX 3090 · 32 GB RAM$1,700 · 30–40 tok/sExcellent
- Desktop PC · Radeon RX 7900 XTX · 32 GB RAM$1,800 · 30–45 tok/sExcellent
- Desktop PC · GeForce RTX 3090 · 64 GB RAM$1,828 · 30–40 tok/sExcellent
Different tool, context size or workload?
These pages use typical settings. The full check models your exact setup.