How to migrate my affected models to Gemini 2.0 Flash or Gemini 2.0 Flash-Lite?

Hello.

I received an email on June 2, 2025 with the following which indicates the Gemini 1.5 models will be retired in Sept 2025.
the email advise me to migrate my affected models to Gemini 2.0 Flash or Gemini 2.0 Flash-Lite, but i don’t know the detailed operated steps of how to migrate. the email origin is as below:

Some Gemini 1.5 models are now discontinued.

We’re writing to remind you that the following models have reached their scheduled end-of-life and are now discontinued:

  • Gemini 1.5 Pro 001
  • Gemini 1.5 Flash 001
  • All tuned versions of Gemini 1.5 Flash 001

Effective today, any attempts to access these models will result in an error.

On September 24, 2025, Gemini 1.5 Pro 002, Gemini 1.5 Flash 002, and Gemini 1.5 Flash-8B -001 will be discontinued and will start returning errors.

Note: If you are using “gemini-1.5-flash” or “gemini-1.5-pro” in your code, these aliases point to “-002”, the latest stable model variant. Therefore, it will not be affected until September 24, 2025.

What you need to do

To avoid encountering errors in your models, we encourage you to migrate your affected models to[ Gemini 2.0 Flash ] before September 24, 2025.

You can review the [model benchmarks](.

Your affected projects, format project_id (project_number), are listed below:


We’re here to help

If you have any questions or run into any issues migrating, let us know on the [Google AI Developer forum]

Thanks for choosing Google AI Studio.
—The Google AI Studio Team
Modified by moderator
This email was sent to **

Could somebody help to solve this migration procedure step by stey?

susie

1 Like

@Susie_Lau

welcome to the community,

unfortunately Fine tuning/ tuned mdoels are not supported nativly on AI studio after Sep 2025,
but you can finetune models as a part of GCP project on vertex ai .

Please check the following link to understand how to finetune a model using VertexAI

for models other than tuning models you can use the same prompts on 2.0 or 2.5 models and make sure it produsces the similar result on AI studio