DeepSeek671B params37B active (MoE)128k contextpopular

DeepSeek R1 locally

DeepSeek R1 is an open-weight LLM from the DeepSeek family with 671B parameters. Main use: reasoning and problem solving. Detected minimum hardware: Mac Studio M3 Ultra (512GB) (512 GB).

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Technical facts

Parameters671B

Max context128k

Q4_K_M421.8 GB

Q5_K_M515.6 GB

Q8749.9 GB

FP161499.8 GB

FamilyDeepSeek

Last sync2026-05-12

Available quantizations

GGUF weights

Q4_K_M

421.8GB

Acceptable. Good compromise when VRAM is limited.

Q5_K_M

515.6GB

Good quality. Sweet spot for size and precision.

749.9GB

Near-FP16 quality. Comfortable for production.

FP16

1499.8GB

Reference precision. Maximum quality, doubled VRAM.

Compatible GPUs

1 single-GPU

GPUs that can run DeepSeek R1 on a single card, ranked by VRAM headroom.

Mac Studio M3 Ultra (512GB)

Apple

512 GB · Mac Studio

421.8 / 512 GBcomfortable · Q4

Similar models

VRAM estimates: parameters x bits/8 plus margin. Real performance varies by engine, context length and batch size.
sync: 2026-05-12