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Explain function calling in LLMs. How does the model decide when to use tools?

ML Concept: 5-6 minutes to answer

llm-engineeringfunction-callingtools
Updated Dec 20, 2025

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Question

Explain function calling in LLMs. How does the model decide when to use tools?

Function calling enables LLMs to take actions beyond text generation.

Expected time to answer: 5-6 minutes

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