Streaming not working with OpenAI contract

Gemini API
1

The streaming request support with OpenAI API contract mentioned here does not work.

Request:

curl "https://generativelanguage.googleapis.com/v1beta/openai/chat/completions" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer GEMINI_API_KEY" \
-d '{
    "model": "gemini-1.5-flash",
    "messages": [
        {"role": "user", "content": "Explain to me how AI works"}
    ],
    "stream": true
  }'

Response

[{
  "error": {
    "code": 400,
    "message": "Invalid resource field value in the request.",
    "status": "INVALID_ARGUMENT",
    "details": [
      {
        "@type": "type.googleapis.com/google.rpc.ErrorInfo",
        "reason": "RESOURCE_PROJECT_INVALID",
        "domain": "googleapis.com",
        "metadata": {
          "method": "google.cloud.aiplatform.internal.PredictionService.StreamGenerateContent",
          "service": "aiplatform.googleapis.com"
        }
      }
    ]
  }
}]