Can You Run Gemma 4 on a Mac Mini (16GB)?
Yes — best fit is Gemma 4 12B at Q4_0 (4-bit) (~6.7GB) ✅ Comfortable, using 11GB of usable memory on a 16GB 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 | SFP8 (8-bit) | ~7.5 GB | ✅ Comfortable |
| Gemma 4 12B | Q4_0 (4-bit) | ~6.7 GB | ✅ Comfortable |
| Gemma 4 26B A4B | — | — | ❌ Won't fit |
| Gemma 4 31B | — | — | ❌ Won't fit |
How we got this verdict
16 - 5 = 11GB usable (macOS and background processes reserve roughly 5 GB of unified memory).
12B 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 12B at essentially the same ~7.2GB download size, with noticeably better output quality than a naive 4-bit quant. See the QAT guide for exact file names.
Going up to 24GB (24GB) doesn't change the top recommendation — 12B is still the best fit, just with more headroom.
Real-world notes for this configuration
16GB is the standard configuration on the base-chip (non-Pro) Mac Mini — the cheapest way into Apple Silicon unified memory. It's also the tier Google's own Gemma 4 documentation highlights specifically: a 16GB Mac Mini M4 running the 12B model comfortably, making the base Mini one of the best-value machines in the entire lineup for that model.
- ⚠Base-chip Mac Minis have a lower configurator ceiling than Pro-chip Minis — if you want meaningfully more memory later, that's a different, pricier tier, not just a memory upgrade on the same board.
Try a different configuration
Best fit: Gemma 4 12B · Q4_0 (4-bit) · ~6.7 GB ✅ Comfortable
FAQ
Can a Mac Mini (16GB) run the 31B flagship model?
No — the 31B model needs at least 17.4GB usable memory even at Q4_0, and this configuration only has 11GB usable. Gemma 4 12B is the largest model that fits here.
What's the best Gemma 4 model for a Mac Mini (16GB)?
Gemma 4 12B at Q4_0 (4-bit) (~6.7GB) is the best fit — it's the largest model that runs comfortably within the 11GB of usable memory here.
What if I have more or less memory than 16GB?
With more (e.g. 24GB), you can run larger models or the same model more comfortably — see the Mac Mini page. This is already close to the practical floor for running Gemma 4 at all.
Is the 16GB Mac Mini a good dedicated local-AI box?
Yes, for its price it's one of the best-value entries into Apple Silicon unified memory — a base-chip Mini can run headless as an always-on server over SSH, at a fraction of the cost of a similarly-specced MacBook Pro.
Can I upgrade a Mac Mini's memory after buying it?
No — Apple Silicon Macs use memory built directly onto the chip package; whatever configuration you buy is permanent. Decide your memory needs before ordering.