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Text model · Granite

Granite 4.1 30B: RAM and VRAM requirements

Granite 4.1 30B needs about 19.1 GB to run at Q4_K_M (the Q4_K_M GGUF file is ~17 GB to download; KV cache and overhead add the rest), or about 33.1 GB at Q8_0. The lightest hardware that runs it is Nvidia GeForce RTX 4090 (24GB).

Granite family · 28.9B params · released Apr 2026.

Shopping for hardware? See what runs Granite 4.1 30B →

License Apache-2.0 · Commercial OK ↓ 20.4K/mo ♥ 139 on HuggingFace
Q4_K_M GGUF
17 GB
Q8_0 GGUF
31 GB
Memory @ Q4 (4k)
~19.1 GB
Context
128 k

Q4_K_M and Q8_0 are GGUF download (file) sizes. Memory @ Q4 includes the KV cache and overhead, so it runs larger than the file on disk.

Will it run on your device?

Granite 4.1 30B runs on 13 of 40 tracked devices at Q4_K_M.

12 run well 1 tight fit 27 too small
Fit check Q4_K_M
No, not enough memory
needs 19.1 GB usable 10.5 GB
See the full breakdown

Memory breakdown

Weights (Q4_K_M)17 GB
+
KV cache (4k)1.3 GB
+
Overhead0.8 GB
=
Total19.1 GB

How context length changes it

4k context ~19.1 GB 32k context ~28.1 GB 128k context ~59.1 GB

Longer context grows the KV cache quickly: Granite 4.1 30B needs ~19.1 GB at 4k but ~59.1 GB at 128k, which can push it past a device that fits it at a short context.

Speed drops too: every token re-reads the KV cache, so at 128k context Granite 4.1 30B generates at roughly ~29% of its short-context speed. How this is estimated.

Quantization sizes

GGUF quantson disk
Quantization Size on disk
Q2_K 12.1 GB est
Q3_K_M 14.1 GB est
Q4_K_M (default) 17 GB
Q5_K_M 20.6 GB est
Q6_K 23.7 GB est
Q8_0 31 GB
FP16 58 GB

Lower quant = smaller and faster, slightly lower quality. Q4_K_M is the common default.

Run it

Ollama
$ ollama run granite4.1:30b

Which devices can run Granite 4.1 30B?

Apple Silicon Macs

RAM-only laptops

iPhone & iPad

Android

NVIDIA GPUs

AMD GPUs

Same job, different size

Pick by what fits your memory: step down to free up VRAM, or step up if you have headroom.

Next size down Qwen3.6 27B 27.8B Next size up Sarvam-30B 30B

Similar models

Head-to-head

FAQ

How much VRAM or RAM does Granite 4.1 30B need?

At Q4_K_M, Granite 4.1 30B needs about 19.1 GB (weights ~17 GB + KV cache + overhead) at a 4k context. At Q8_0 budget ~33.1 GB.

What is the Q4_K_M GGUF file size of Granite 4.1 30B?

The Q4_K_M GGUF file is about 17 GB to download, and the Q8_0 GGUF is about 31 GB. That is the weights file on disk; to run it you also need room for the KV cache and overhead, so budget ~19.1 GB of memory at Q4_K_M.

Can Granite 4.1 30B run on a laptop?

Granite 4.1 30B is large; you need a 24 GB+ GPU or a 32-48 GB Mac at Q4_K_M.

Can I use Granite 4.1 30B commercially?

Yes. Granite 4.1 30B is licensed Apache-2.0, which permits commercial use.

Understand the numbers

Short guides to the ideas behind Granite 4.1 30B's memory and quant figures.

Granite 4.1 flagship: dense 28.9B, 128K context, Apache-2.0. Needs a 32GB-class machine at Q4.

Sources

Last validated 2026-08-03. Memory figures are estimates. See methodology.