Mellum started with code completion. Mellum2 is built for more – handling both natural language and code. A 12B-parameter open-source LLM for routi…

JetBrains released Mellum2, a 12B-parameter open-source LLM on Hugging Face designed for routing, RAG, and sub-agent tasks with both natural language and code support. Unlike its predecessor focused solely on code completion, Mellum2 targets ultra-low-latency inference in agentic pipeline components.