Antigravity - MODEL_CAPACITY_EXHAUSTED Error for Account (Claude Opus 4.6 Thinking)

Google Antigravity
1

Hello Antigravity Support Team,

I am writing to report a persistent issue with one of my Google accounts when using Google Antigravity.

AFFECTED ACCOUNT: s....@gmail.com

I have three Google accounts, all of which have active Google One Pro subscriptions claimed through Jio. Two of these accounts work perfectly fine with Antigravity — I can run Claude Opus 4.6 (Thinking) without any issues. However, my account s...@gmail.com (Google One Pro claimed approximately one week ago) is experiencing the following problems:

  1. ANTIGRAVITY ERROR:
    Whenever I try to run an agent using Claude Opus 4.6 (Thinking), I receive:
    “Our servers are experiencing high traffic right now, please try again in a minute.”
    Followed immediately by:
    “Agent terminated due to error.”
    This happens consistently and is not a temporary issue — I have retried multiple times over several days.

  2. GOOGLE AI STUDIO ERROR:
    When I visit AI Studio (aistudio.google.com) on this account, I see:
    “Project quota tier unavailable. Please contact your project administrator for assistance.”
    Additionally, any API key I generate from this account shows as failed.

DEBUG INFORMATION:

  • Trajectory ID: 5eda7529-3687-49ba-98d9-2ba636774…
  • Error: HTTP 503 Service Unavailable
  • TraceID: 0x2d496d9496b09..
  • X-Cloudaicompanion-Trace-Id: 2d496d9496b0948f
  • Error Code: 503
  • Reason: MODEL_CAPACITY_EXHAUSTED
  • Error Message: “No capacity available for model claude-opus-4-6-thinking on the server”
  • Status: UNAVAILABLE
  • Domain: cloudcode-pa.googleapis.com
  • Model: claude-opus-4-6-thinking
  • Date/Time: Wed, 17 Jun 2026 05:27:29 GMT
  • Server-Timing: gfet4t7; dur=1364

IMPORTANT OBSERVATION:
My other two Google accounts with the exact same Jio Google One Pro subscription have NO such issue — Claude Opus 4.6 (Thinking) runs smoothly on those accounts. The MODEL_CAPACITY_EXHAUSTED error appears to be specific to this account (s...@gmail.com), which strongly suggests a backend quota or capacity allocation issue tied to this particular account, rather than a general server problem.

STEPS ALREADY TRIED:

  • Logged out and logged back in to Antigravity
  • Retried the agent multiple times over several days
  • Verified that the Google One Pro subscription is Active
  • Checked account settings to ensure proper connection

Could you please investigate the quota/capacity allocation and help resolve this issue?

Thank you for your time and assistance.

Best regards,
Sailik

2

Same, today i can’t use opus

3

I have the same issues with opus today, doesn’t seem to be related to specific accounts only when looking on the peaks here Google Antigravity Status. Check if Google Antigravity is down or having an outage. | StatusGator . This error already happend a couple of times in the past months, but let us hope they resolve it this time faster.