Can I Run Cosmos 3 Super on NVIDIA A100 80GB?

Name: LLM Configurator — GPU VRAM Checker
Author: LLM Configurator

Written by Jakub Rusinowski · Last updated August 15, 2026

Not at BF16 — that needs 128.0 GB and the NVIDIA A100 80GB has 80 GB. Drop to Q8_0 and it fits in 71.1 GB, with up to 32K of context.

The numbers

Model	Cosmos 3 Super
Parameters	64B
Quantization	BF16
VRAM needed	128.0 GB
NVIDIA A100 80GB VRAM	80 GB
Verdict	Runs at a lower quant
Fits at	Q8_0 (71.1 GB)
Max context	32K

What to do next

Quantize to Q8_0. That is the cheapest fix — it costs some quality but no money.

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Running Cosmos 3 Super on this card:

NVIDIA A100 80GB PCIe

80 GB VRAM · 300 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 80 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

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