Can I run Ornith-1.5-122B-GGUF on an NVIDIA H200?

Yes, just

Its UD-Q6_K_XL file (114 GB) fits in the 127 GB an NVIDIA H200 can use, with room for ≈ 256K tokens of context.

llama-server -hf unsloth/Ornith-1.5-122B-GGUF:UD-Q6_K_XL

Files and context on NVIDIA H200

Each file of Ornith-1.5-122B-GGUF (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.

Ornith-1.5-122B-GGUF on other hardware

Popular models that run on NVIDIA H200

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.