Can You Run Gemma 4 on a MacBook Air (24GB)?
Yes — best fit is Gemma 4 12B at SFP8 (8-bit) (~13.4GB) ✅ Comfortable, using 19GB of usable memory on a 24GB MacBook Air.
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 | ⚠️ Tight |
| Gemma 4 31B | Q4_0 (4-bit) | ~17.4 GB | ⚠️ Tight |
How we got this verdict
24 - 5 = 19GB usable (macOS and background processes reserve roughly 5 GB of unified memory).
Because MacBook Air has enough unified memory to spare, 12B fits at SFP8 (8-bit)— a higher-precision quant than most setups get. You don't need the 4-bit QAT build here, though it's still a safe download if you want a smaller file for a second model running alongside it.
Going up to 32GB (32GB) unlocks 31B at Q4_0 (4-bit) — a step up from 12B here.
Real-world notes for this configuration
24GB exists only as a build-to-order upgrade on the M4 MacBook Air — there's no 24GB configuration in the M1, M2, or M3 generations, so this tier always signals the newest Air hardware. It sits between the 16GB standard tier and the 32GB ceiling, giving meaningfully more room for larger models without stepping up to a MacBook Pro.
- ⚠As a configure-to-order option rather than a stock SKU, per-GB pricing here is usually worse than jumping straight to 32GB — worth pricing out both before ordering.
Try a different configuration
Best fit: Gemma 4 12B · SFP8 (8-bit) · ~13.4 GB ✅ Comfortable
FAQ
Can a MacBook Air (24GB) run the 31B flagship model?
Yes, but it's tight — Gemma 4 31B fits at Q4_0 (4-bit) (~17.4GB), using 19GB of usable memory on this configuration.
What's the best Gemma 4 model for a MacBook Air (24GB)?
Gemma 4 12B at SFP8 (8-bit) (~13.4GB) is the best fit — it's the largest model that runs comfortably within the 19GB of usable memory here.
What if I have more or less memory than 24GB?
With more (e.g. 32GB), you can run larger models or the same model more comfortably — see the MacBook Air page. With less (e.g. 16GB), the best-fitting model gets smaller or tighter — see the MacBook Air page.
Is 24GB a standard MacBook Air configuration or a paid upgrade?
It's a build-to-order upgrade over the standard 16GB — Apple doesn't sell 24GB as the base spec on any Air model, only as a checkout option on the M4 generation.
Is 24GB enough headroom to keep a browser and other apps open during a session?
It's meaningfully more forgiving than 16GB, since the OS's own reservation stays roughly fixed while you gain another 8GB of total pool — a browser and a couple of light apps alongside a running model is realistic here in a way it isn't at 16GB.
Related
Gemma 4 on MacBook Air
The full setup guide for this device family.
Can You Run Gemma 4 on a MacBook Air (16GB)?
MacBook Air — 16GB
Can You Run Gemma 4 on a MacBook Air (32GB)?
MacBook Air — 32GB
Gemma 4 Hardware Requirements
The full memory table this checker is built on.
Full Hardware Checker
Every device type, every model, one tool.