Can You Run Gemma 4 on a Mac Mini (32GB)?
Yes — best fit is Gemma 4 31B at Q4_0 (4-bit) (~17.4GB) ✅ Comfortable, using 27GB of usable memory on a 32GB Mac Mini.
Every Gemma 4 model on this configuration
| Model | Best quant | Size | Status |
|---|---|---|---|
| Gemma 4 E2B | BF16 (16-bit) | ~8 GB | ✅ Comfortable |
| Gemma 4 E4B | BF16 (16-bit) | ~15 GB | ✅ Comfortable |
| Gemma 4 12B | SFP8 (8-bit) | ~13.4 GB | ✅ Comfortable |
| Gemma 4 26B A4B | Q4_0 (4-bit) | ~15.6 GB | ✅ Comfortable |
| Gemma 4 31B | Q4_0 (4-bit) | ~17.4 GB | ✅ Comfortable |
How we got this verdict
32 - 5 = 27GB usable (macOS and background processes reserve roughly 5 GB of unified memory).
31B lands on Q4_0 here, so grab the official QAT (quantization-aware training) checkpoint instead of a generic Q4_0 quant. Google shipped a full-quality QAT build for 31B at essentially the same ~19GB download size, with noticeably better output quality than a naive 4-bit quant. See the QAT guide for exact file names.
Going up to 48GB (48GB) doesn't change the top recommendation — 31B is still the best fit, just with more headroom. One tier down, at 24GB, the best fit drops to 12B (comfortable) instead.
Real-world notes for this configuration
A Mac Mini with more than 24GB of memory is running the Pro-chip variant — the base-chip Mini's configurator options stop at 24GB. That Pro chip also brings meaningfully higher memory bandwidth than the base chip, on top of the extra capacity, which is the more relevant real-world difference for inference speed once a model already fits.
- ⚠Because this memory tier implies the Pro chip, price comparisons against a base-chip Mini at lower memory aren't apples-to-apples — you're also paying for more CPU/GPU cores and bandwidth, not just more RAM.
Try a different configuration
Best fit: Gemma 4 31B · Q4_0 (4-bit) · ~17.4 GB ✅ Comfortable
FAQ
Can a Mac Mini (32GB) run the 31B flagship model?
Yes, comfortably — Gemma 4 31B fits at Q4_0 (4-bit) (~17.4GB), using 27GB of usable memory on this configuration.
What's the best Gemma 4 model for a Mac Mini (32GB)?
Gemma 4 31B at Q4_0 (4-bit) (~17.4GB) is the best fit — it's the largest model that runs comfortably within the 27GB of usable memory here.
What if I have more or less memory than 32GB?
With more (e.g. 48GB), you can run larger models or the same model more comfortably — see the Mac Mini page. With less (e.g. 24GB), the best-fitting model gets smaller or tighter — see the Mac Mini page.
Does a 32GB Mac Mini always mean I have the Pro-chip variant?
Yes — the base-chip Mini's memory options stop at 24GB, so any Mini configured above that runs the Pro chip.
Is the Pro chip's extra memory bandwidth noticeable for local AI compared to the base chip?
Apple's published specs put the Pro chip's memory bandwidth well above the base chip's — in practice that tends to matter more for tokens-per-second than for what fits, since fit is governed purely by capacity.
Related
Gemma 4 on Mac Mini
The full setup guide for this device family.
Can You Run Gemma 4 on a Mac Mini (24GB)?
Mac Mini — 24GB
Can You Run Gemma 4 on a Mac Mini (48GB)?
Mac Mini — 48GB
Gemma 4 Hardware Requirements
The full memory table this checker is built on.
Full Hardware Checker
Every device type, every model, one tool.