No capacity available for model claude-opus-4-6-

Google Antigravity
1

For few days unusable… all models even one im not using

Trajectory ID: c538fcb6-fe72-40d6-

Error: HTTP 503 Service Unavailable

Sherlog:

TraceID: 0x27597b

Headers: {“Alt-Svc”:[“h3=\”:443\“; ma=2592000,h3-29=\”:443\“; ma=2592000”],“Content-Length”:[“429”],“Content-Type”:[“text/event-stream”],“Date”:[“Thu, 05 Mar 2026 08:00:26 GMT”],“Server”:[“ESF”],“Server-Timing”:[“gfet4t7; dur=565”],“Vary”:[“Origin”,“X-Origin”,“Referer”],“X-Cloudaicompanion-Trace-Id”:[“27597bf066ddbe25”],“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": "claude-opus-4-6-thinking"

    },

    "reason": "MODEL_CAPACITY_EXHAUSTED"

  }

\],

"message": "No capacity available for model claude-opus-4-6-thinking on the server",

"status": "UNAVAILABLE"

}

}

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2

I am having this constantly too: agent executor error: model unreachable: UNAVAILABLE (code 503): No capacity available for model claude-opus-4-6-thinking on the server: UNAVAILABLE (code 503): No capacity available for model claude-opus-4-6-thinking on the server

1 Like
3

google doesn’t have enough servers to handle traffic from all paid users
too much demand

the only solution for now is to use sonnet instead of opus

4

Hi @Zlobor_Dalibor, @Beulah_Kruger
Welcome to the Google AI Forum!!!

Thank you for bringing this to our attention. We have escalated the issue to our internal teams for a thorough investigation.

To ensure our engineering team can investigate and resolve these issues effectively, we highly recommend filing bug reports directly through the Antigravity in-app feedback tool. You can do this by navigating to the top-right corner of the interface, clicking the Feedback icon, and selecting Report Issue.

1 Like
5

Hi @Shivam_Singh2 What we can do as highest plan customer .. Any model filing for last 5 days unusable.. If this is not going to be fixed we migrate directly to antropic this is realt bad user experience..

1 Like
6

Cancel your service. If you pay attention to the community, you’ll see that Antigravity isn’t suitable for anything approaching production, and that the amount you pay means nothing.

2 Likes