JetBrains Releases Mellum2.1: A 12B MoE Open Model for Coding Agents
MarkTechPost
Read the full articleJetBrains launched Mellum2.1, a 12-billion-parameter mixture-of-experts model optimized for coding agents, activating 2.5B parameters per token. It improves over Mellum2 mainly via reinforcement learning in real software environments, excelling in coding benchmarks and supporting long contexts.

