Can I run S5-nano on an RTX 6000 Ada?

Yes

Its published weights (9.32 GB) fit in the 43.2 GB an RTX 6000 Ada can use, with room for ≈ 256K tokens of context.

hf download maritaca-ai/S5-nano

Files and context on RTX 6000 Ada

Each file of S5-nano (and of GGUF versions the site has analyzed), and how much context fits next to it, with the context cache in 16-bit or 8-bit.

S5-nano on other hardware

Popular models that run on RTX 6000 Ada

Assumes 90% of the card's memory is usable and at least 4K tokens of context for one conversation, with the context cache in 16-bit unless noted. Fits leaves at least 20% of that memory for context; Tight leaves less.