JetBrains Junie Local ships native support for NVIDIA RTX Spark (up to ~55 tok/s in early tests, auto-sized context, FP8 + speculative decoding) and moves Windows Ampere+ 24GB RTX from experimental to stable—free local coding agent with no token charges and code that never leaves the machine.
NVIDIA (Oct 16) details RTX Spark as a single-machine coding-agent workstation: decision models in llama.cpp/Unsloth choose next actions up to ~200x faster than long reasoning loops; HydraFusion prompt router escalates only when local models aren’t enough; GitHub Copilot gains Windows ML + llama.cpp local backend; Junie Local and Pi optimized. Pair with open Nemotron Bolt 74B-A9B 24GB for on-device agents via Ollama/vLLM/LM Studio.