Account-Specific Issue: Consistent HTTP 503 Error (MODEL_CAPACITY_EXHAUSTED)

Google Antigravity
,
1

Whenever I attempt to call any model using this specific account, I consistently receive the following error: “Our servers are experiencing high traffic right now, please try again in a minute.” However, when I test with other accounts under the exact same conditions, they work perfectly fine. This indicates that the problem is isolated to this specific account rather than a general network or server outage.

Here are the detailed error logs from a recent failed request for your reference:

Trajectory ID: 475de48e-c5be-4c4f-8790- Error: HTTP 503 Service Unavailable Sherlog TraceID: 0xe4536047
Headers: ```json {“Alt-Svc”:[“h3=”:443"; ma=2592000,h3-29=“:443”; ma=2592000"],“Content-Length”:[“419”],“Content-Type”:[“text/event-stream”],“Date”:[“Wed, 29 Apr 2026 13:19:29 GMT”],“Server”:[“ESF”],“Server-Timing”:[“gfet4t7; dur=552”],“Vary”:[“Origin”,“X-Origin”,“Referer”],“X-Cloudaicompanion-Trace-Id”:[“e4536047f73ca496”],“X-Content-Type-Options”:[“nosniff”],“X-Frame-Options”:[“SAMEORIGIN”],“X-Xss-Protection”:[“0”]}


**Response Body:**
```json
{
  "error": {
    "code": 503,
    "details": [
      {
        "@type": "type.googleapis.com/google.rpc.ErrorInfo",
        "domain": "cloudcode-pa.googleapis.com",
        "metadata": {
          "model": "gemini-3.1-pro-high"
        },
        "reason": "MODEL_CAPACITY_EXHAUSTED"
      }
    ],
    "message": "No capacity available for model gemini-3.1-pro-high on the server",
    "status": "UNAVAILABLE"
  }
}