NVIDIA released open datasets and tools for agentic AI development, arguing that real-world agent tasks do not behave like static benchmarks. The release includes the Nemotron Post-Training v3 Prompt Atlas, an interactive tool for exploring millions of post-training samples and identifying semantic patterns. It also expands the Nemotron-Personas collection to ten countries with synthetically generated, region-specific personas representing over 2.4 billion people, letting developers test whether systems serve diverse linguistic and geographic populations.