Agent terminated due to error: Model Capacity Exhausted

Google Antigravity
1

Keep getting Agent terminated due to error. Here is the debug info.

Error: Our servers are experiencing high traffic right now, please try again in a minute.

If it helps, I am a paying pro user

Trajectory ID: e71bad75-cae3-4f91-8770-......
Error: HTTP 503 Service Unavailable
Sherlog:
TraceID: 0xed3af2adb61eb51c
Headers: {“Alt-Svc”:[“h3=":443"; ma=2592000,h3-29=":443"; ma=2592000”],“Content-Length”:[“525”],“Content-Type”:[“text/event-stream”],“Date”:[“Fri, 27 Feb 2026 10:35:22 GMT”],“Server”:[“ESF”],“Server-Timing”:[“gfet4t7; dur=376”],“Vary”:[“Origin”,“X-Origin”,“Referer”],“X-Cloudaicompanion-Trace-Id”:[“ed3af2adb61eb51c”],“X-Content-Type-Options”:[“nosniff”],“X-Frame-Options”:[“SAMEORIGIN”],“X-Xss-Protection”:[“0”]}

{
  "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"
      },
      {
        "@type": "type.googleapis.com/google.rpc.RetryInfo",
        "retryDelay": "37s"
      }
    ],
    "message": "No capacity available for model gemini-3.1-pro-high on the server",
    "status": "UNAVAILABLE"
  }
}
1 Like
2

Same here, I can’t use Claude, it always happens, and right at the first prompt

3

Hey @Dking @alfie_nbo,

A 503 error Service Unavailable indicates that the service is temporarily overloaded or experiencing a capacity constraint. This is common during peak usage hours, particularly with long context requests. The best immediate step is to wait some time and try again.

Could you please confirm if you are still facing this issue?

4

Generally it resolved by re authenticating your google account with antigravity.