Can I run humanizer on an RTX 6000 Ada?

Yes

Its published weights (23.9 GB) fit in the 43.2 GB an RTX 6000 Ada can use, with room for ≈ 256K tokens of context.

hf download jialinyyzz/humanizer

Files and context on RTX 6000 Ada

Each file of humanizer (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.

humanizer 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.