Mellum2.1
JetBrains released Mellum2.1 on October 8, 2026, an open 12B mixture-of-experts model for coding agents
Free
Code
12B MoE
parameters
Apache-2.0
license
Oct 2026
released
JetBrains released Mellum2.1 on October 8, 2026, an open 12B mixture-of-experts model for coding agents. It was trained with reinforcement learning in coding environments.
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