NVIDIA Nemotron 3.5 Lightning: The AI Agent Workhorse

Long-running AI agents often spend most of their time on routine execution rather than difficult reasoning. After making a plan, they may perform hundreds of tool calls, file reads, validations, commands, and formatting steps, so using a frontier reasoning model for every action can become unnecessarily slow and expensive. NVIDIA’s Nemotron 3.5 Lightning takes a different approach: a fast, efficient model designed for high-volume agent execution. The idea is simple: use the expensive model to think and the fast model to work. In this article, we examine whether that architecture can reduce cost without sacrificing agentic performance. What is NVIDIA Nemotron 3.5 Lightning? Why Is Nemotron 3.5 Lightning So Fast? NVIDIA Nemotron 3.5 Lightning Benchmark Results Nemotron 3.5 Lightning Pricing How to Access NVIDIA Nemotron 3.5 Lightning Hands-on: Using Nemotron 3.5 Lightning Through NVIDIA API What is NVIDIA Nemotron 3.5 Lightning? Furthermore, NVIDIA Nemotron 3.5 Lightning is an open-weight reasoning and…