Can I run Qwen3.8-27B-MLX-5bit on an NVIDIA H100?

Yes

Its published weights (19.4 GB) fit in the 72.0 GB an NVIDIA H100 can use, with room for ≈ 256K tokens of context.

hf download lmstudio-community/Qwen3.8-27B-MLX-5bit

Files and context on NVIDIA H100

Each file of Qwen3.8-27B-MLX-5bit (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.

Qwen3.8-27B-MLX-5bit on other hardware

Popular models that run on NVIDIA H100

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.