Agent runtime infrastructure Harness Engineering Multimodal

Gemini Interactions API

A stateful interface for Gemini models, long-running jobs, and tools.

A stateful Gemini API interface for building and managing agentic, long-running, multimodal interactions, including background execution and tool use.

Screenshot of Gemini Interactions API website

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releasePRIMARY2026-06-22

Google ships Interactions API in GA as Gemini default with background agents

Google put the Interactions API into GA as the new default for Gemini, adding background execution, managed agents, remote sandboxes, and multimodal tools. Builders now get one stateful interface for models, long-running jobs, and future Gemini Omni support.