NVIDIA'S SWITCHYARD ROUTER RESHUFFLES AI MODELS MID-TASK, CUTTING TASK COSTS TO A THIRD IN ITS OWN TESTS

Summary from the TLDR AI newsletter

Nvidia has announced Nemotron 3.5 Lightning, a 30-billion-parameter open mixture-of-experts model built for high-volume, specialized agent tasks, and NeMo Switchyard, an open-source library that routes each step of an agent workflow to whichever model fits it best. Lightning delivers up to 4x faster output than comparable models in its class. It can complete agentic tasks roughly 30% faster than Qwen3.6-35B at matching accuracy. Paired with Switchyard, the model retains frontier-level task completion ability while costing roughly a third of running Opus 4.8 alone.