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DeepSeek-V3.2 Thinking

Active Parameters

671B

Context Length

128K

Modality

Text

Architecture

Mixture of Experts (MoE)

License

MIT

Release Date

10 Jan 2026

Knowledge Cutoff

Jul 2024

System Requirements

VRAM requirements for different quantization methods and context sizes

1,024 tokens

1410.63 GB VRAM

Consumer

86x RTX 4090

24GB VRAM

Datacenter

22x NVIDIA A100

80GB VRAM

Apple Silicon

18x Apple M3 Max

128GB VRAM

128,000 tokens

1414.80 GB VRAM

Consumer

87x RTX 4090

24GB VRAM

Datacenter

22x NVIDIA A100

80GB VRAM

Apple Silicon

18x Apple M3 Max

128GB VRAM

Architecture Diagram

Input TokensToken EmbeddingPosition: AbsoluteHidden: 7.2k · Context: 128K · Vocab: 129.3kx 61 layersRMSNormPre-AttentionDeepSeek Sparse Attention128Q / 1KV headsHead dim: 56+RMSNormPre-FFNSparse MoE FFN (8/256 experts)SwiGLUIntermediate: 2k+Final RMSNormOutput Logits

Evaluation Benchmarks

Rank

#45

BenchmarkScoreRank

0.74

7

Graduate-Level QA

GPQA

0.824

18

Professional Knowledge

MMLU Pro

0.85

21

Web Development

WebDev Arena

1360

44

General Text

Text Arena

1425

57

Rankings

Overall Rank

#45

Coding Rank

#26

About DeepSeek-V3.2 Thinking

DeepSeek-V3.2 Thinking is an advanced reasoning-enhanced language model that integrates large-scale reinforcement learning with a massive mixture-of-experts (MoE) architecture. As the reasoning-specialized variant of the V3.2 series, it is engineered to prioritize logical consistency and systematic problem-solving through an explicit chain-of-thought (CoT) process. The model is specifically optimized for complex domains such as mathematics, algorithmic programming, and multi-step agentic workflows, where it generates detailed reasoning traces prior to producing a final response. This transparency into the model's internal logic allows for more reliable verification of complex outputs and supports sophisticated tool-integration scenarios.

Technically, the model utilizes a sparse Mixture-of-Experts (MoE) framework comprising 671 billion total parameters, with 37 billion parameters activated per token to maintain high computational efficiency. A significant architectural advancement in this version is the introduction of DeepSeek Sparse Attention (DSA), which reduces the computational complexity of the attention mechanism from quadratic to nearly linear. This innovation, instantiated under Multi-Head Latent Attention (MLA), enables the model to process long-context sequences with substantially lower memory and compute overhead. The model also employs a Group Relative Policy Optimization (GRPO) framework for reinforcement learning, which stabilizes training by utilizing group-based baselines instead of a separate critic network.

DeepSeek-V3.2 Thinking is designed for high-stakes reasoning applications, including scientific research, debugging intricate software logic, and executing autonomous agentic tasks. It supports a 128k context window and introduces a 'thinking with tools' capability, allowing the model to perform interleaved reasoning and API calls. The integration of Multi-Token Prediction (MTP) during training further enhances its internal representations, leading to faster convergence and more robust performance on reasoning-heavy benchmarks. Released under the MIT license, this model provides an open-weight foundation for researchers and developers seeking to deploy frontier-class reasoning capabilities in local or enterprise environments.

Technical Specifications

Attention

Attention Structure

DeepSeek Sparse Attention

Attention Heads

128

Key-Value Heads

1

Attention Head Dimension

-

Position Embedding

Absolute Position Embedding

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

256

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-V3.2 Thinking: Specifications and GPU VRAM Requirements