MODEL_CAPACITY_EXHAUSTED HTTP 503 Service Unavailable

Google Antigravity
1

Trajectory ID: 9ad50a4f-c367-4d7c-ad61-45a806f6

Error: HTTP 503 Service Unavailable

Sherlog:

TraceID: 0xa9f7f443f8aa

Headers: {“Alt-Svc”:[“h3=\”:443\“; ma=2592000,h3-29=\”:443\“; ma=2592000”],“Content-Length”:[“525”],“Content-Type”:[“text/event-stream”],“Date”:[“Sun, 26 Apr 2026 11:11:14 GMT”],“Server”:[“ESF”],“Server-Timing”:[“gfet4t7; dur=252”],“Vary”:[“Origin”,“X-Origin”,“Referer”],“X-Cloudaicompanion-Trace-Id”:[“a9f7f443f8aafcc7”],“X-Content-Type-Options”:[“nosniff”],“X-Frame-Options”:[“SAMEORIGIN”],“X-Xss-Protection”:[“0”]}

{

“error”: {

“code”: 503,

“details”: [

{

“@typetype”: “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”: “45s”

}

],

“message”: “No capacity available for model gemini-3.1-pro-high on the server”,

“status”: “UNAVAILABLE”

}

}

2

Trajectory ID: f4211de3-65d4-4c36-8805-
Error: HTTP 503 Service Unavailable
Sherlog:
TraceID: 0x330449fb568
Headers: {“Alt-Svc”:[“h3=\”:443\“; ma=2592000,h3-29=\”:443\“; ma=2592000”],“Content-Length”:[“415”],“Content-Type”:[“text/event-stream”],“Date”:[“Tue, 28 Apr 2026 15:04:15 GMT”],“Server”:[“ESF”],“Server-Timing”:[“gfet4t7; dur=419”],“Vary”:[“Origin”,“X-Origin”,“Referer”],“X-Cloudaicompanion-Trace-Id”:[“330449fb5688cd41”],“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](http://cloudcode-pa.googleapis.com)”,
“metadata”: {
“model”: “claude-sonnet-4-6”
},
“reason”: “MODEL_CAPACITY_EXHAUSTED”
}
],
“message”: “No capacity available for model claude-sonnet-4-6 on the server”,
“status”: “UNAVAILABLE”
}
}