JetBrains open-sources Mellum2 for private, high-speed AI coding infrastructure
JetBrains has open-sourced Mellum2, a 12-billion-parameter AI coding model designed for on-premises deployment and agentic orchestration. Unlike cloud-based models such as Anthropic's Claude Code, Mellum2 offers full control over data and infrastructure, making it suitable for privacy-sensitive environments. The model's architecture, featuring a Mixture-of-Experts setup, prioritizes speed and the ability to coordinate sub-agent tasks, positioning it as a foundational tool for AI infrastructure rather than just a code completion assistant. AI
IMPACT Enables on-premises agentic AI infrastructure, offering a privacy-focused alternative to cloud-based coding models.