JetBrains releases Mellum2.1 for coding agentsMachine translation
Automatically verified and published · Generated and evidence-checked automatically; not reviewed by a human.
JetBrains has released Mellum2.1, a 12B-parameter mixture-of-experts model that activates 2.5B parameters per token, with weights released under Apache 2.0. In JetBrains’ self-reported evaluation using a shared pipeline, its SWE-bench Verified score rose from its predecessor’s 2.0 to 47.0, but remained below Qwen3.5-9B’s 50.0.
This source permits summary display only.
Read at the original source