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DeepSeek-V3.1

Active Parameters

671B

Context Length

128K

Modality

Text

Architecture

Mixture of Experts (MoE)

License

MIT License

Release Date

21 Aug 2025

Knowledge Cutoff

-

System Requirements

VRAM requirements for different quantization methods and context sizes

1,024 tokens

1414.90 GB VRAM

Consumer

87x RTX 4090

24GB VRAM

Datacenter

22x NVIDIA A100

80GB VRAM

Apple Silicon

18x Apple M3 Max

128GB VRAM

128,000 tokens

1947.89 GB VRAM

Consumer

127x RTX 4090

24GB VRAM

Datacenter

32x NVIDIA A100

80GB VRAM

Apple Silicon

27x Apple M3 Max

128GB VRAM

Architecture Diagram

Input TokensToken EmbeddingPosition: RoPEHidden: 7.2k · Context: 128K · Vocab: 129.3kx 61 layersRMSNormPre-AttentionMulti-Head Attention128Q / 128KV headsHead dim: 56+RMSNormPre-FFNSparse MoE FFN (8/257 experts)SwiGLUIntermediate: 2k+Final RMSNormOutput Logits

Evaluation Benchmarks

Rank

#130

BenchmarkScoreRank

0.481

24

Professional Knowledge

MMLU Pro

0.84

55

General Text

Text Arena

1417

80

Rankings

Overall Rank

#130

Coding Rank

#73

About DeepSeek-V3.1

A hybrid model that supports both "thinking" and "non-thinking" modes for chat, reasoning, and coding. It's a Mixture-of-Experts (MoE) model with a massive context length and efficient architecture.

Technical Specifications

Attention

Attention Structure

Multi-Head Attention

Attention Heads

128

Key-Value Heads

128

Attention Head Dimension

-

Position Embedding

ROPE

RoPE Theta

10,000

Sliding Window Attention

No

Sliding Window Size

-

Sliding Window Ratio

-

Linear Attention

-

Linear Attention Ratio

-

Normalization

RMS Normalization

Activation Function

SwigLU

Dimensions

Hidden Dimension Size

7,168

Number of Layers

61

FFN Intermediate Size (Dense)

2,048

Multi-Token Prediction Heads

1

Tokenizer

Vocabulary Size

129,280

Mixture of Experts

Total Expert Parameters

37.0B

Number of Experts

257

Active Experts

8

Shared Experts

1

FFN Intermediate Size (per Expert)

2,048

Dense Layers Before MoE

3

About DeepSeek-V3

DeepSeek-V3 is a Mixture-of-Experts (MoE) language model comprising 671B parameters with 37B activated per token. Its architecture incorporates Multi-head Latent Attention and DeepSeekMoE for efficient inference and training. Innovations include an auxiliary-loss-free load balancing strategy and a multi-token prediction objective, trained on 14.8T tokens.


Other DeepSeek-V3 Models
DeepSeek-V3.1: Specifications and GPU VRAM Requirements