What is Function Calling?
What does 'Function Calling' mean?
A language model is given descriptions of the functions or tools available to it and, when a request needs one, returns a structured call naming the function and its arguments instead of plain prose. The application executes that call and feeds the result back to the model. This is the mechanism behind assistants that can query a database, fetch live data or take actions in other systems.
List of software with Function Calling functionality
About the reviewer
Rajat Gupta is the founder of Spotsaas. Over the past two years, he has reviewed 2,000+ tools across CRM, HR, AI, and finance — applying hands-on product research and a background in commerce and the CFA program to evaluate software through a business and ROI lens. His goal: help teams make software decisions they won't regret.
Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].