Breaking model
gemini-robotics-er-1.5-preview was shut down on the Gemini API April 30, 2026; its listed replacement has since been scheduled for shutdown too.
What changes
Google announced on April 14, 2026 that the model would shut down April 30, 2026 at 9AM PST, and the changelog records it as shut down that day. The listed replacement, gemini-robotics-er-1.6-preview, has a shutdown date of August 31, 2026, with gemini-robotics-er-2-preview listed as its replacement.
Breaking: Calls fail after this date.
What to do
Move to gemini-robotics-er-2-preview rather than gemini-robotics-er-1.6-preview, which the deprecations page lists with an August 31, 2026 shutdown date. Re-validate robot behavior before deploying.
Strings to search for
gemini-robotics-er-1.5-preview