# Mellum Mellum is [[JetBrains]]' family of open-weight [[Large Language Models (LLMs)]] for developer workflows. It started as a specialized model focused on **code completion**: small and fast, meant to power in-IDE suggestions rather than general chat. Its successor, [[Mellum2]], broadens the scope to natural language as well as code. ## Key points - Purpose-built for code completion (the inline-suggestion job), not a general-purpose chat model - Open weights on HuggingFace, fitting JetBrains' developer-tooling stack ([[Junie (JetBrains)|Junie]], the IDEs) - The line continues with [[Mellum2]] (12B MoE, natural language + code) ## References - https://huggingface.co/collections/JetBrains/mellum ## Related - [[Mellum2]] - [[JetBrains]] - [[Junie (JetBrains)]] - [[Large Language Models (LLMs)]] - [[AI Open Weight Models]]