What is LLM tool calling, and how does it work?

LLM tool calling allows language models to interact with external tools and services to complete tasks such as performing calculations or checking live data. This mechanism enhances the usefulness of AI assistants by enabling them to act on precise requests and integrate results into conversations. Portkey aids in managing tool calling at scale, providing observability, retry logic, and fallback routing to ensure seamless integration with multiple models and tools.