JetBrains open-sources Mellum 2.1 Thinking: 12B MoE with 2.5B active params
JetBrains · hf · 2026-10-10
JetBrains released Mellum2.1-12B-A2.5B-Thinking, a thinking-capable MoE text-generation model fine-tuned from Mellum2-12B-A2.5B-Base, with 12B total and 2.5B active parameters. Apache 2.0 licensed, it is trending on Hugging Face.
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