// MODEL OPTIMIZATION AND PROMPT SYNTAX TERM
Fully Connected
In a neural network, a fully connected layer means every neuron in that layer is connected to every neuron in the previous layer.
TECHNICAL DEFINITION
A layer in a neural network where each neuron receives input from every neuron in the preceding layer and provides output to every neuron in the subsequent layer, performing a linear transformation followed by an activation function.
BACKGROUND
Hangzhou DeepSeek Artificial Intelligence Basic Technology Research Co., Ltd., doing business as DeepSeek, is a Chinese artificial intelligence (AI) company that develops open weights large language models (LLMs). Based in Hangzhou, Zhejiang, DeepSeek is owned and funded by High-Flyer, a Chinese hedge fund. DeepSeek was founded in July 2023 by Liang Wenfeng, who serves as the CEO for both of the companies. The company launched an eponymous chatbot alongside its DeepSeek-R1 model in January 2025. Its Series A round in May 2026 brought the company to a post-money valuation of US$52 billion.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- Dense layer
- linear layer
- affine layer
USAGE NOTE
Fully connected layers are often found at the end of a network for classification or regression tasks.
DEVELOPERS
Organizations developing technology related to Fully Connected.
Develops foundational AI architectures and frameworks like TensorFlow and JAX, extensively utilizing fully connected layers in their neural networks for tasks ranging from computer vision to natural language processing and advanced AI research.
Contributes significantly to AI research and open-source frameworks like PyTorch, enabling the development of advanced neural networks that integrate fully connected layers for various AI applications across their platforms.
Engages in deep AI research and development of platforms (Azure AI) and models, where fully connected layers are integral components of their neural network architectures powering enterprise services and AI solutions.
Develops large-scale generative AI models like the GPT series, which are built upon transformer architectures that extensively employ fully connected layers for processing and generating complex data in language and other domains.
Beyond hardware, NVIDIA develops software platforms (CUDA, cuDNN, TensorRT) and conducts research essential for optimizing the performance and training of deep neural networks, including the computations involving fully connected layers.
Provides a comprehensive suite of AI services and development tools (Amazon SageMaker) that allow engineers to build and deploy models, many of which leverage fully connected neural network architectures for various business applications.
Offers a widely used platform and open-source libraries (Transformers) that facilitate the use and development of neural network models for NLP and other domains, many of which rely on underlying fully connected layer operations within their architectures.