Mellum: JetBrains’ Developer-Centric LLM Revolutionizing Code Completion

🧠 What is Mellum?

Mellum is JetBrains’ in-house developed LLM, tailored to assist software developers by providing intelligent code completion. Integrated within the JetBrains AI Assistant, Mellum delivers faster and more accurate code suggestions, enhancing developer productivity and code quality.

🚀 Key Features

• Optimized for Code Completion: Mellum is engineered to provide swift and relevant code suggestions, reducing completion latency to one-third of previous times.

• High Acceptance Rate: Approximately 40% of Mellum’s code suggestions are accepted by developers, indicating its effectiveness and reliability.

• Reduced Cancellation Rate: The frequency of developers canceling code suggestions has decreased by 3-4 times compared to earlier versions.

• Expanded Language Support: Mellum currently supports Java, Kotlin, Python, Go, and PHP, with plans to include more languages through the Early Access Program.

• Deep IDE Integration: Mellum is deeply integrated with JetBrains IDEs, allowing it to offer contextually aware code completions tailored to specific projects.

• Privacy-Focused Training: The model is trained exclusively on publicly available, permissively licensed code, ensuring user privacy and data security.

⚙️ Technical Architecture

Mellum’s architecture is built upon advanced deep learning techniques, particularly the Transformer model, renowned for its proficiency in handling sequential data and capturing long-range dependencies. This foundation enables Mellum to understand the context of code and provide accurate completions.

Key aspects include:

• Contextual Understanding: Mellum analyzes the surrounding code to offer suggestions that align with the current coding context.

• Optimized Model Size: By focusing solely on code completion, Mellum maintains a smaller, more efficient model size, resulting in lower latency and faster response times.

• Continuous Learning: Mellum evolves by learning from user interactions, refining its suggestions to better meet developer needs.

• IDE Collaboration: The model’s integration with JetBrains IDEs allows it to access project-specific information, enhancing the relevance of its code suggestions.

🔗 Project Links

• Official Blog Post: Introducing Mellum: JetBrains’ New LLM Built for Developers

• JetBrains AI Assistant: JetBrains AI Assistant

💡 Use Cases

• Enhanced Code Completion: Mellum provides developers with intelligent code suggestions, streamlining the coding process.

• Error Detection and Correction: The model assists in identifying and rectifying coding errors, improving code reliability.

• Code Optimization: Mellum offers suggestions to optimize code performance and maintainability.

• Rapid Prototyping: Developers can leverage Mellum to quickly generate code snippets during the prototyping phase.

• Documentation Generation: Mellum aids in creating comprehensive code documentation, facilitating better understanding and collaboration.

• Educational Support: For learners and educators, Mellum serves as a valuable tool for teaching and understanding programming concepts.