Antigravity crashes in rapid succession

Google Antigravity
1

Hello,

Since last night (French time), Antigravity has been crashing repeatedly, making it virtually impossible to work. A prompt ends with an error 9 times out of 10, and the “continue” action leads to further crashes.

I’m using Gemini 3 Flash and Gemini 3.1 Pro (High), and I’m on the Ultra subscription.

Here is the debug info:

Trajectory ID: b17e9622-f265-4fea-9722-88424a03653b
Error: HTTP 503 Service Unavailable
Sherlog:
TraceID: 0xdf016d764d015239
Headers: {“Alt-Svc”:[“h3=“:443”; ma=2592000,h3-29=“:443”; ma=2592000”],“Content-Length”:[“421”],“Content-Type”:[“text/event-stream”],“Date”:[“Wed, 18 Mar 2026 10:18:07 GMT”],“Server”:[“ESF”],“Server-Timing”:[“gfet4t7; dur=608”],“Vary”:[“Origin”,“X-Origin”,“Referer”],“X-Cloudaicompanion-Trace-Id”:[“df016d764d015239”],“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-flash-agent”
},
“reason”: “MODEL_CAPACITY_EXHAUSTED”
}
],
“message”: “No capacity available for model gemini-3-flash-agent on the server”,
“status”: “UNAVAILABLE”
}
}

Thank you for your help.

2 Likes
2

same here its been a worst of a session in past 5 months experencing this for the first time.

similar error debug info responds model capacity exhausted.

3

I’m actually working with Gemini 3.1 Pro (Low), and it’s working fine. Hope it helps.

4

i am using flash which has enough bandwidth but still getting error. i am going back to one old version by uninstalling the latest patch to see if things are better

5

Hello @Cheviader @Flen_Box , welcome to AI Forum!

We’re finding new ways to share more capacity with the Antigravity community. During windows where we have unused capacity, currently in the late afternoon PST, you’ll notice that your baseline quota stretches further. You’ll get more requests and less downtime within your existing plan.

As global demand shifts, we’ll continue to adjust these windows to pass any available capacity back to you. We’re committed to expanding access and ensuring every developer has the capacity they need to keep building.

1 Like