A sample application built by IBM Bob to demonstrate reasoning and implementing plug-and-play tool calling Introduction to IBM Granite 4.2 IBM Granite 4.2 represents a significant leap forward in enterprise-grade, open-source large language models. Designed with standard architectural efficiency, Granite 4.2 natively integrates hybrid capabilities: extended multi-turn reasoning (Chain-of-Thought via <think> blocks) paired with high-precision XML-based tool calling....