Gemini Enterprise Agent Platform retires preview models
Google Cloud is retiring several preview Gemini Enterprise Agent Platform models, including 2.5 Flash, 2.5 Flash-Lite, and 3.1 Flash-Lite. This change affects users who were experimenting with these specific preview versions, as their endpoints are no longer accessible. Users are advised to migrate to the latest Google models, with migration guidance available.
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- Gemini Enterprise Agent Platform Retirement for preview models for 2.5 Flash, 2.5 Flash-Lite, and 3.1 Flash-Lite
Retirement for preview models for 2.5 Flash, 2.5 Flash-Lite, and 3.1 Flash-Lite The following preview model endpoints have been retired and are no longer accessible: gemini-2.5-flash-lite-preview-09-2025 gemini-2.5-flash-preview-05-2025 gemini-3.1-flash-lite-preview See Migrate to the latest Google models for information on how to migrate your project.
https://docs.cloud.google.com/release-notes#July_09_2026