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Vertex AI · Model retirement

gemini-1.5-flash-001

Stopped working

Calls to the model gemini-1.5-flash-001 on Vertex AI stopped working on May 24, 2025.

What to use instead of gemini-1.5-flash-001

Move to gemini-3.8-flash. gemini-2.5-flash-lite, named first, stopped working on 2026-10-20.

Facts

API
Vertex AI aiplatform.googleapis.com
Model
gemini-1.5-flash-001
Kind
Model retirement
Takes effect
May 24, 2025
Calls after that day
Fail
Source
Deprecations page
Last updated

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