Antigravity and "Agent terminated due to error"

Google Antigravity
1

Hello, I’ve been using Antigravity for a few months now, and I have a workspace account with the AI ​​Ultra option.

With models like Claude Opus 4.6 Thinking, but also with others like Sonnet or Gemini Pro 3.1 High (though it happens less often), I constantly get this error:

“Agent terminated due to error.”

It’s practically unusable; I have to restart it multiple times to get a response. It’s extremely annoying and I’m seriously starting to wonder if I should just switch from this IDE to Claude Code or Cursor.

Because at this point, it’s simply unusable from a professional standpoint.

I live in Belgium, so I imagine we’re not a top priority, and the same goes for service delivery…

{
“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”
}
}

Do you face the same issues ?

1 Like
2

I encounter this constantly on the Ultra AI subscription. I sent several requests to the feedback section, but there is no response.

4 Likes
3

Okay, well, I suspected I wasn’t the only one. Frankly, I don’t know if there’s a solution to this right now… These models are resource-intensive (Opus 4.6, Gemini Pro 3.1 High). Gemini Pro 3.1 High generally performs quite well, but 4.6, as I said, is simply unusable.

The fact is that usage demand is exploding, and the infrastructure probably can’t keep up. The war in Iran probably isn’t helping either… And whether we like it or not, priority will always be given to American users. That’s just a guess; I don’t have proof, but you know, family first…

1 Like
4

The same error is happening here.

1 Like
5

The most annoying thing is that you have to restart it every time and it works; if this restart could be automated at the IDE level, that would be very convenient!

6

Hello Everyone,
Welcome to the Google AI Forum!!!

Thank you for bringing these concerns 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.

7

I will thank you very much

8

I’m experiencing the same error here. The root cause appears to be that, while I’ve confirmed the local DB has the correct project ID and the OAuth token exists, the server-side binding is broken. The client sends the correct value, but Cloud AI Companion still receives an empty projects/ parameter. Since this is a Google bug, I cannot resolve it locally. Can the Antigravity team help?

P.S. The ‘Provide Feedback’ submit button inside Antigravity is disabled, so I cannot report this issue directly through the platform.