Tool call
A structured request from a model asking application code to invoke an external function.
What Tool call does not show
The application, not the model, decides whether and how the action executes.
Definitions that name Tool call
Related terms in Models and generation
How a model produces text, what its training and decoding controls change, and what none of them can prove about a source.
Autoregressive model · Transformer · Attention · Self-attention · Parameter · Inference · Pretraining · Fine-tuning · Supervised fine-tuning · Instruction tuning · RLHF · Preference optimization · Knowledge distillation · Quantization · Mixture of experts · Multimodal model · Vision-language model · Small language model · Tokenizer · Temperature · Top-p sampling · Deterministic decoding · System prompt · Developer message · Function calling · Structured output · Constrained decoding · Chain of thought · Reasoning trace · Context caching · Context compaction · Model routing · Model drift · Model version
Questions about Tool call
What is Tool call?
A structured request from a model asking application code to invoke an external function.
What does Tool call not show or guarantee?
The application, not the model, decides whether and how the action executes.
Which area of the glossary does Tool call belong to?
Models and generation: How a model produces text, what its training and decoding controls change, and what none of them can prove about a source.
← Developer message · Function calling →
See it in the full glossary · 772 terms across 19 areas.
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