What GPU do I need to run KRAFTON/A.X-K2-Raon-Speech-21B-A3B?
21.2B parameters, published in BF16. View on Hugging Face
A.X-K2-Raon-Speech-21B-A3B is published by KRAFTON on Hugging Face, with 19,132 downloads and 102 likes to date. It's a RaonModel model built for any-to-any, published natively in BF16.
VRAM required & cheapest live GPU fit
Required VRAM = weight size at each precision, plus a fixed overhead for KV-cache, activations, and fragmentation. Full formula and assumptions: methodology.
A GPU is only matched to a row if its hardware supports that precision, and the primary recommendation is always a single-GPU fit when one exists.
INT4 caveat: requires a quantized checkpoint actually published for this model, check its Hugging Face page before relying on this row.
Cheapest way to run A.X-K2-Raon-Speech-21B-A3B at its published (BF16) precision: 1× A40 on runpod, at $0.440/hr per GPU ($0.440/hr total). Quantizing to FP8 or INT4 (rows above) can cost less, but requires a compatible quantized checkpoint to exist for this model.
Weight-to-VRAM math, the fit rules, and how live prices are normalized: full methodology.
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