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Gabrielle gemini-3-pro-image image generation (Interactions)

POST 
/v1beta/interactions

Create a Gemini image interaction for gemini-3-pro-image with the official Interactions API. The gateway forwards the original JSON / SSE and does not convert to Chat Completions or generateContent. POST /v1/interactions behaves the same and keeps the client-selected version.

See the Interactions API overview for auth, streaming events, billing, and differences from calling Google directly.

Streaming often emits thinking without a finished image. Prefer gemini-3.1-flash-image for streaming image output.

Request​

Responses​

Interaction created. Non-stream JSON is the official Interaction object. Stream responses are text/event-stream.