DeepSeek-Coder is a powerful open-source series of code language models developed by DeepSeek AI using PyTorch. Trained from scratch on a massive dataset of 2 trillion tokens, with 87% being source code and 13% natural language, it offers advanced capabilities for project-level code completion and infilling across multiple programming languages. With model sizes ranging from 1.3 billion to 33 billion parameters and a 16K window context, DeepSeek-Coder delivers state-of-the-art performance, consistently leading benchmarks such as HumanEval, MultiPL-E, and MBPP in the open-source domain.
Technical Overview
DeepSeek-Coder models have been meticulously trained on extensive code and natural language data to optimize complex code generation tasks including completion and infilling within entire projects. Their large context window enables the consideration of long-range dependencies within codebases for higher accuracy and coherence. The models support dozens of programming languages and excel in automated code-related tasks, maintaining robust performance across diverse environments.
Framework & Architecture
- Framework: PyTorch
- Architecture: Transformer-based large code language model
- Parameters: Range from 1.3B to 33B
- Context Window: 16,000 tokens
- Latest Version: 1.0
The architecture leverages multi-layer transformers optimized for code understanding and generation, enabling scalable training and inference while supporting extensive multi-language codebases.
Key Features / Capabilities
- Project-level code completion and infilling
- Support for dozens of programming languages
- Large 16K token context window for contextual awareness
- Strong benchmark performance in HumanEval, MultiPL-E, and MBPP
- Open-source – promotes transparency and community-driven improvements
- Pretrained with diverse code and natural language data for better generalization
Use Cases
- Code completion for faster development and reduced errors
- Code infilling to insert missing code snippets within projects
- Multi-language support for cross-platform and multi-framework projects
- Automated code review assistance to detect issues and suggest improvements
Access & Licensing
DeepSeek-Coder is released under an Open Source License, making it free and accessible to developers worldwide. The source code and pretrained models are available on GitHub for easy integration, experimentation, and customization. Developers can access the official model and documentation through the Hugging Face platform, enabling straightforward deployment and usage in various coding applications.
Official URL: https://huggingface.co/deepseek-ai/deepseek-coder-33b-instruct
Source Code: https://github.com/deepseek-ai/DeepSeek-Coder