[firebase_vertexai]: Gemini 1.5 Flash not working

[MaggieThomann]

Is there an existing issue for this?

• I have searched the existing issues.

Which plugins are affected?

Other

Which platforms are affected?

Web

Description

I tried to use the gemini-1.5-flash model name in a Flutter app that initiates a chat session using vertexAI.generativeModel with that model name and it returns the following. It's surprising since in the documentation, it's a valid name, and I understand it's been discontinued but it hasn't been deprecated yet. Interestingly, gemini-1.5-pro does work.

{
  "error": {
    "code": 400,
    "message": "Project `#############` is not allowed to use Publisher Model `projects/maggie-test-with-fireba-mg1uyj/locations/us-central1/publishers/google/models/gemini-1.5-flash`",
    "status": "FAILED_PRECONDITION"
  }
}

Project ID is obfuscated.

Reproducing the issue

Use gemini-1.5-flash as the model name when making a generateContent call via the package.

Firebase Core version

3.8.0

Flutter Version

3.27.3

Relevant Log Output

Flutter dependencies

No response

Additional context and comments

No response

[SelaseKay]

Hi @MaggieThomann, thanks for the report. I suspect this could be an issue from upstream. Looks similar to this thread.

[MichaelVerdon]

Our example applications use gemini-1.5-flash and it is still working fine, regardless of the deprecation warning it should still work for you. I am almost certain this is a configuration issue on your end, more likely to do with it on Google Cloud Platform and checking your billing plan and quotas if it allows for gemini-1.5-flash, your plan may only allow the pro version.

I can suggest you insert your google-services file locally into our test project and see if it works, that can confirm if it is a backend configuration issue on your end.