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[ARTICLE · art-147693] src=marktechpost.com ↗ pub= topic=artificial-intelligence verified=true sentiment=↑ positive

JetBrains Releases Mellum2.1: A 12B MoE Open Model for Coding Agents

JetBrains released Mellum2.1, an Apache 2.0 licensed 12B mixture-of-experts thinking model with 2.5B active parameters, aimed at coding agents. Reinforcement learning in real repositories raised the model's SWE-bench Verified score from 2.0 to 47.0.

by read1 min views3 publishedOct 8, 2026
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