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Can I run Qwen3.5-0.8B on an NVIDIA H100?

Yes

Its published weights (1.75 GB) fit in the 72.0 GB an NVIDIA H100 can use, with room for ≈ 256K tokens of context.

Full analysis of Qwen3.5-0.8B Everything that runs on NVIDIA H100 Get the weights on Hugging Face
hf download Qwen/Qwen3.5-0.8B

Files and context on NVIDIA H100

Each file of Qwen3.5-0.8B (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.

FileSizeOn NVIDIA H100 Context (16-bit)Context (8-bit)
As published1.75 GBFits256K256K
4-bit (estimate)491 MBFits256K256K

Qwen3.5-0.8B 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.