Nvidia launches 74B open-weight Bolt model for local AI PC agents

Nvidia launched Nemotron 3.5 Bolt 74B-A9B 24GB on Oct. 19, a 74-billion-parameter open-weight model for local agentic tasks including multistep reasoning, tool calling and web browsing. The company positions it for AI PCs with RTX Spark chips and DGX Spark workstations, keeping latency-sensitive agent loops on device.