What GPU do I need to run huihui-ai/Huihui-gpt-oss-20b-BF16-abliterated?

20.9B parameters, published in BF16. View on Hugging Face

20.9B
Parameters
BF16
Native precision
GptOssForCausalLM
Architecture
text-generation
Pipeline

Huihui-gpt-oss-20b-BF16-abliterated is published by huihui-ai on Hugging Face, with 12,706 downloads and 219 likes to date. It's a GptOssForCausalLM model built for text-generation, 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.

Precision
Weight size
Required VRAM
Cheapest live fit
GPUs needed
Est. $/hr (full fit)
BF16
39.0 GB
46.7 GB
A40 (runpod)
1
$0.440/hr
cheaper alt.
RTX 3070 (simplepod)
6
$0.300/hr
FP8 (quantized)
19.5 GB
23.4 GB
RTX 4090 (runpod)
1
$0.340/hr
cheaper alt.
RTX 4070 (simplepod)
2
$0.160/hr
INT4 (quantized)
9.7 GB
11.7 GB
RTX 3060 (simplepod)
1
$0.080/hr

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 Huihui-gpt-oss-20b-BF16-abliterated 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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