ModelRefs / Parallel Tool Calls — AI Glossary
Parallel Tool Calls — AI Glossary
Executing multiple independent tool calls in a single model turn, reducing multi-step agent latency. Reduces round-trips by N-1 for N parallel operations.
Overview
Modern APIs (OpenAI, Anthropic, Gemini) support parallel tool calls: the model emits multiple tool_call objects in one response when operations are independent. The caller executes them in parallel and returns all results in one message. Reduces round-trips by N-1 for N parallel operations. Essential for research agents issuing multiple concurrent searches.
Reference details
| Topic | agents |
|---|---|
| Last reviewed | 2026-06-24 |
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Frequently asked questions
What is Parallel Tool Calls?
Executing multiple independent tool calls in a single model turn, reducing multi-step agent latency.
What concepts are related to Parallel Tool Calls?
Closely related concepts include tool selection, parallel execution, tool use.