Can I Run Cosmos 3 Super on Apple M3 Max?

Written by Jakub Rusinowski · Last updated August 15, 2026

Not at BF16 — that needs 128.0 GB and the Apple M3 Max has 64 GB. Drop to Q6_K and it fits in 55.6 GB, with up to 32K of context.

The numbers

ModelCosmos 3 Super
Parameters64B
QuantizationBF16
VRAM needed128.0 GB
Apple M3 Max VRAM64 GB
VerdictRuns at a lower quant
Fits atQ6_K (55.6 GB)
Max context32K

What to do next

Quantize to Q6_K. That is the cheapest fix — it costs some quality but no money.

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Running Cosmos 3 Super on this card:

Apple MacBook Pro M3 Max
64 GB VRAM · 35 W board power
2026 prices are volatile — check the current listing.
Check price on Amazon

Won't fit — rent Cosmos 3 Super instead

Cosmos 3 Super needs ~128 GB but this GPU has 64 GB. Rent a 2× A100 (160 GB)-class GPU by the hour instead of buying one:

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Vast.ai $1.54/hr · typical low · varies
Rent on Vast.ai →
RunPod $2.78/hr
Rent on RunPod →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

Other Cosmos 3 sizes on the Apple M3 Max

Cosmos 3 Super on nearby hardware

All Cosmos 3 sizes on the Apple M3 Max | VRAM calculator for Cosmos 3 Super | Apple M3 Max GPU page | Check your hardware