Written by Jakub Rusinowski · Last updated August 15, 2026
Yes. Cosmos 3 Nano needs 32.0 GB at BF16 and the Apple M3 Max has 64 GB, leaving about 32 GB of headroom, at roughly 13 tok/s (estimated) with room for up to 128K of context.
| Model | Cosmos 3 Nano |
| Parameters | 16B |
| Quantization | BF16 |
| VRAM needed | 32.0 GB |
| Apple M3 Max VRAM | 64 GB |
| Verdict | Runs |
| Max context | 128K |
| Estimated speed | ~13 tok/s |
Nothing to change — run it at BF16. If you want more capability, check whether the next size up also fits.
Running Cosmos 3 Nano on this card:
At 2 hrs/day, buying (~$2,499) beats renting at $0.55/hr after about 6.3 years.
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
All Cosmos 3 sizes on the Apple M3 Max | VRAM calculator for Cosmos 3 Nano | Apple M3 Max GPU page | Check your hardware