Nvidia Unveils Nemotron 3.5 Lightning and NeMo Switchyard

Nvidia released Nemotron 3.5 Lightning, a 30-billion-parameter mixture-of-experts model delivering up to 4x faster output and 30% faster agentic task completion. The company also launched NeMo Switchyard, an open source routing library that cuts task completion cost to nearly one-third of Opus 4.8 alone.