Evaluating Tool Calling Capabilities in Large Language Models: A Literature Review
Large language models (LLMs) are increasingly being used to interact with external tools and APIs. However, evaluating their tool calling capabilities presents unique challenges compared to traditional single-turn or retrieval-augmented use cases. This post is an attempt to synthesize our findings from recent papers to help builders effectively evaluate LLM tool calling. We read through and reviewed a dozen papers published between 2023 and 2025 to better understand how tool calling is evaluated. ...