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SCAIL-2

zai-org/SCAIL-2

SCAIL-2 at Q4_K_M is exactly 10,862,812,832 bytes (10.12 GiB / 10.86 GB) — an effective 5.300 bits per weight, not the nominal 4.

From the file· summed from 1 file(s)
Parameters
16.4B
Architecture
wan
Context
native (config.json)
License
mit

Shipped quantizations

exact bytes, summed from published files
QuantSizeExact bytesEffective bpwTensorsPublisher
Q2_K5.61 GiB6,020,521,6322.938realrebelai
Q2_K6.84 GiB7,340,088,9923.582vantagewithai
Q3_K_M7.55 GiB8,108,662,4323.957realrebelai
Q3_K_S7.97 GiB8,553,078,4324.173vantagewithai
Q3_K_M8.48 GiB9,109,438,1124.445vantagewithai
Q3_K_M8.48 GiB9,109,438,1584.445Abiray
Q4_09.80 GiB10,526,449,3125.136vantagewithai
Q4_K_S9.94 GiB10,676,854,4325.210vantagewithai
Q4_K_S9.94 GiB10,676,854,4785.210Abiray
Q4_K_M10.12 GiB10,862,812,8325.300realrebelai
Q4_110.46 GiB11,233,910,4325.481vantagewithai
Q4_K_M10.67 GiB11,456,036,5125.590vantagewithai
Q4_K_M10.67 GiB11,456,036,5585.590Abiray
Q5_K_S11.26 GiB12,091,776,6725.900vantagewithai
Q5_K_S11.26 GiB12,091,776,7185.900Abiray
Q5_011.40 GiB12,242,181,7925.973vantagewithai
Q5_K_M11.42 GiB12,265,283,2325.985realrebelai
Q5_112.06 GiB12,949,642,9126.319vantagewithai
Q5_K_M12.08 GiB12,969,836,1926.329vantagewithai
Q5_K_M12.08 GiB12,969,836,2386.329Abiray
Q6_K12.81 GiB13,755,408,0326.712realrebelai
Q6_K13.26 GiB14,236,442,2726.947vantagewithai
Q6_K13.26 GiB14,236,442,3166.947Abiray
Q8_016.45 GiB17,666,268,8328.620realrebelai
Q8_016.90 GiB18,147,303,0728.855vantagewithai
Q8_016.90 GiB18,147,303,1168.855Abiray

Pipeline components

a diffusion model is a graph of parts, not one file
ComponentSizeShareCan live on the CPU?
denoiser2.83 GiB100%no, must be resident
Full pipeline2.83 GiBresident if nothing is offloaded

The parameter count published for a diffusion model describes the denoiser alone. Running it also requires its text encoder and VAE, and the text encoder is often nearly as large as the denoiser — which is why offloading it is the standard first move when you run out of memory.

We publish component sizes here, not throughput. Community-submitted image-generation rates do exist for many GPUs and we show them on the hardware pages, but they aggregate runs at different resolutions, step counts and settings, so they cannot be attributed to one model. Peak memory during sampling is unmeasured by any public source, and we do not estimate it.

Compare with

same modality, comparable size

Will it run on your card?

full quant x context sweep

Why other calculators give a different number

A parameters × bits ÷ 8 estimate puts Q4_K_M at roughly 8.59 GiB. The real file is 10.12 GiB, because a quantization is a mixture and some tensors are always kept at higher precision.

Architecture

Architecture unavailable — this repository is gated and no ungated mirror was found. Exact file sizes above are still authoritative; only the KV math needs the config.

Questions people ask

How much VRAM does SCAIL-2 need?
Q4_K_M is exactly 10,862,812,832 bytes (10.12 GiB) in weights. Add the KV cache, which depends on your context length, plus roughly half a gigabyte of runtime overhead.
Which quantization of SCAIL-2 should I use?
Q4_K_M is the usual default. Pick the largest quantization that fits your card at the context you actually need — the table above gives exact sizes for every one published.