NVIDIA is cutting the cost of running autonomous AI agents by two-thirds with NeMo Switchyard, an open-source router that dynamically assigns each step of an agent workflow to the cheapest model that can handle it. Paired with Nemotron 3.5 Lightning, a new 30-billion-parameter mixture-of-experts model, NVIDIA claims up to 4x faster token generation and 30% faster task completion than comparable open models. The real unlock isn't the model — it's the routing....