overview
Overview
Mellum 2 is an open-weight 12B-parameter Mixture-of-Experts (MoE) language model with 2.5B active parameters per token. It is specialized in software engineering, spanning code generation and editing.
AI Tool
JetBrains Mellum 2
Mellum 2 is an open-weight 12B-parameter Mixture-of-Experts (MoE) language model with 2.5B active parameters per token. It is specialized in software engineering, spanning code generation and editing.
shipped Jun 2, 2026freemium
Domain rating93Monthly visits4.4M/mo
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API Docs
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Yes, public API
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