JetBrains launches Mellum2, a fast open‑source coding model for IDE‑level AI tasks
JetBrains released Mellum2, a 12B-parameter Mixture-of-Experts coding model optimized for low‑latency, high‑throughput IDE tasks like refactoring and code‑wide analysis, aiming to fill gaps left by Claude Code. Licensed Apache 2.0, the model can be self‑hosted and integrated into private AI pipelines for enterprise software engineering.