Requests to this API firebasevertexai.googleapis.com method google.firebase.vertexai.v1beta.GenerativeService.GenerateContent are blocked

Gemini API
,
1

Hi everyone, I have recently hit rate limit for the RPD(Requests per day) of 50 for the gemini-1.5-flash model. I have however just switched over to the gemini-2.5-flash model and also tried the gemini-2.0-flash model. I keeps throwing an error:

Requests to this API firebasevertexai.googleapis.com method google.firebase.vertexai.v1beta.GenerativeService.GenerateContent are blocked.

I am using the FirebaseAI package and have enabled the correct Gemini Developer API and not the Vertex one as I have not enabled billing and want to use the free tier.
I am calling

await Firebase.initializeApp(
    options: DefaultFirebaseOptions.currentPlatform,
  );
  await FirebaseAppCheck.instance.activate(
    androidProvider: AndroidProvider.playIntegrity,
  );

in my main method and I am using the firebaseAI like this.

Future<String> gemini(image) async {
  final gemini =
      FirebaseAI.googleAI().generativeModel(model: 'gemini-2.0-flash-lite-001');

What exactly is the issue here?
Are the free tiers shared? Like if I hit my rate limit quota on the gemini-1.5-flash model will it still prevent me from using the gemini-2.0-flash model even though I have never used it before?
Am I missing other configurations steps?
Any help would be much appreciated,
Kind regards,
Jamie

3

Hey @Jamie123234 , it sounds like you’ve hit the free tier limit, and unfortunately, that limit might apply across all Gemini models under the same Firebase project. Even switching models won’t bypass it unless you’re on a different quota or billing plan. You might need to wait for the quota to reset or enable billing to lift the restriction.

Thanks!