Glossary Infrastructure 1 min read

Function Calling

Also known as: Tool Use, Tool Calling, AI Actions

A capability of AI models to generate structured outputs that invoke predefined functions or APIs, enabling AI systems to take actions, retrieve data, and interact with external systems.

Tool use, API calling, plugin system, structured output, JSON mode, tool invocation, agent actions, external tools, action generation, function execution, tool augmented LLM, agentic capabilities, structured function calls

Sources & References

2 Documentation
3 Documentation