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"

}

}

1 Like
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
7

I never encountered these problems while using Google AI Pro. It’s only since switching to the Google AI ULTRA package that I can’t get any work done. I constantly have the same capacity problem. Initially, the issue only occurred with the OPUS model, but now I’m getting the same error even when using Gemini Flash. I’m going to cancel my subscription because I’m not getting any results.

8

How to get a refund? I was charged yesterday and now getting this error and I keep losing tokens. This is unbelievable.