404 Not Found for gemini-1.5-flash in project titantrack-gemini-2

Gemini API
1

Hi,

I’m trying to use the Gemini API from my web app and I’m always getting 404 errors for the models, even though the API is enabled.

Project details:

  • API: Gemini API / Generative Language API (generativelanguage.googleapis.com)

  • Billing: Enabled

  • Credentials: Gemini API Key created in this project

Request I’m making from the frontend:

text

**POST https://generativelanguage.googleapis.com/v1/models/gemini-1.5-flash:generateContent?key=MY_API_KEY
Content-Type: application/json

{
"contents": [
{
"parts": [
{
"text": "Test prompt"
}
]
}
]
}**

The response is always:

json

{
"error": {
"code": 404,
"status": "NOT_FOUND",
"message": "models/gemini-1.5-flash is not found for API version v1, or is not supported for generateContent. Call ListModels to see the list of available models and their supported methods."
}
}

I see the same 404 behavior when I try gemini-1.5-flash-001.

In the Google Cloud Console:

  • Gemini API is enabled for this project.

  • I can see “Gemini API Key” listed under APIs & Services → Credentials.

  • The same API key is being used in my app (environment variable).

Could you please check why this project cannot access Gemini models (gemini-1.5-flash) and what I should change so that the GenerateContent calls work?

Thanks in advance!