What GPU do I need to run JetBrains/Mellum2-12B-A2.5B-Base?
12.1B parameters, published in BF16. View on Hugging Face
Set up Mellum2-12B-A2.5B-BaseMellum2-12B-A2.5B-Base is published by JetBrains on Hugging Face, with 17,383 downloads and 24 likes to date. It's a MellumForCausalLM 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 | 22.6 GB | 27.2 GB | RTX 4080 Super | 1 | $0.338/hr |
| cheaper alt. | RTX 5060 Ti | 2 | $0.220/hr | ||
| FP8 (quantized) | 11.3 GB | 13.6 GB | RTX 5060 Ti | 1 | $0.110/hr |
| INT4 (quantized) | 5.7 GB | 6.8 GB | RTX 5060 Ti | 1 | $0.110/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 requires a quantized checkpoint actually published for this model, check its Hugging Face page before relying on this row.
Cheapest way to run Mellum2-12B-A2.5B-Base at its published (BF16) precision: 1× RTX 4080 Super, at $0.338/hr per GPU ($0.338/hr total). Quantizing to FP8 or INT4 (rows above) can cost less, but requires a compatible quantized checkpoint to exist for this model.
Mellum2-12B-A2.5B-Base: common questions
Does Mellum2-12B-A2.5B-Base fit on a 32 GB GPU?
Yes. At BF16 it needs 27.2 GB of VRAM, so a 32 GB card holds it with 4.8 GB to spare. A 24 GB card is not enough for it at BF16.
What is the least VRAM Mellum2-12B-A2.5B-Base can run in?
6.8 GB, at INT4 (quantized), which fits an 8 GB card, against 27.2 GB at BF16. That row assumes an INT4 checkpoint has actually been published for this model, so check its Hugging Face page before planning around it.
Does quantizing Mellum2-12B-A2.5B-Base lower the GPU bill?
Yes. At BF16 the cheapest live fit is one RTX 4080 Super at $0.338/hr. At FP8 (quantized) it drops to one RTX 5060 Ti at $0.110/hr, provided a quantized checkpoint exists for it.
Weight-to-VRAM math, the fit rules, and how live prices are normalized: full methodology.
Related reading: H100 pricing and specs, The best GPUs for AI, ranked, and Best GPU for LLM inference.
