Family DeepSeek · 671B parameters

DeepSeek V3 671B

Frontier MoE 671B/37B. MLA + auxiliary-loss-free. V3.1-Terminus (MIT, Sep 2025) available in update.

🇨🇳 DeepSeek·License DeepSeek License·Context 125k tokens·Output December 2024← Catalog

01What it can do

Strengths
  • Open frontier
  • MLA = reduced KV memory
  • V3.1-Terminus available under the MIT license
Limitations to know
  • —DeepSeek License (initial V3)
  • —400+ GB in Q4
Architecture
256-expert MoE, 8 active · MLA · auxiliary-loss-free · FP8 training
Training
14.8T pretraining tokens. V3.1-Terminus (Sep 2025) relicensed under MIT.
Ideal for
Frontier chatCodeReasoning

04Install

Install Ollama for your OS. Check the model and its quantization before downloading. Start with 4096 tokens of context, then check placement with ollama ps. A command below is not proof that a test was run on your machine.

$ollama run deepseek-v3:671b
⚠
First download: between 2 and 40 GB depending on the selected quantization. Plan for sufficient disk space; a stable connection is recommended. Subsequent launches are instant.

02Required memory

Approximate GPU VRAM required to run this model, including 4k tokens of context overhead. For a longer context, add ~1 GB per 8k-token increment.

Q4_K_M
The lightest, ~5% loss
400 GB
Q5_K_M
Good quality/size compromise
480 GB
Q8_0
Nearly indistinguishable from FP16
720 GB
FP16
Full precision — server use
1342 GB
Fallback CPU · If you don't have a GPU, allow 512 GB of RAM minimum to run this model at reduced speed.

What hardware do you need for DeepSeek V3 671B?

To run DeepSeek V3 671B locally with Q4 quantization, you need about 400 GB of VRAM. An option to compare: BOSGAME M5 128GB / 2TB (Ryzen AI Max+ 395) — this model exceeds this mini-PC's GPU capacity: choose a smaller model or suitable infrastructure.

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03Expected speed

Tokens generated per second in Q4_K_M, 4k context. Beyond 20 t/s, reading is comfortable. Below 10 t/s, that's just for testing.

Entry-level
~1t/s
GTX 1650, RX 6600, MBA M2 8GB
Mid-range
~5t/s
RTX 4060, 4070, MBP M3 Pro
High-end
~15t/s
RTX 4090, M4 Max, Radeon 7900