JetBrains has announced that Junie Local, its local AI coding tool, now has Day 0 support for NVIDIA's RTX Spark platform, with Windows support upgraded to stable. The tool requires no registration, token fees, or quotas, and can generate up to 55 tokens per second on RTX Spark.
JetBrains released Mellum2.1, a coding AI model retaining a 12B MoE architecture with 2.5B active parameters under Apache 2.0, with enhanced agentic coding capabilities and reinforcement learning expanded as the main training stage. Its high-load inference throughput is nearly twice that of Qwen3.5-9B, and MTP improves single-request speed by about 1.6x. The model is now available on Hugging Face, with GGUF versions and vLLM components to follow.