429 RESOURCE_EXHAUSTED for Claude Opus 4.5 Thinking with Google AI Pro Account

[pidgeon777]

Summary

Consistent 429 RESOURCE_EXHAUSTED + model_cooldown when sending requests to gemini-claude-opus-4-5-thinking via ProxyPal + CodeCompanion.nvim. Ongoing for ~1 hour. Two Google Pro accounts via antigravity (work + personal); both return 429, including the account that should be unused.

Context

• Client: CodeCompanion.nvim
• Model: gemini-claude-opus-4-5-thinking
• Provider: antigravity
• ProxyPal version: v0.3.86 (updated around when this started)
• Accounts: 2 Google Pro accounts (work/personal); both return 429

Error details (from CodeCompanion logs)

[chat::_submit_http] Error: {
  body = '{\n  "error": {\n    "code": 429,\n    "message": "Resource has been exhausted (e.g. check quota).",\n    "status": "RESOURCE_EXHAUSTED"\n  }\n}{\n  "error": {\n    "code": 429,\n    "message": "Resource has been exhausted (e.g. check quota).",\n    "status": "RESOURCE_EXHAUSTED"\n  }\n}{"error":{"code":"model_cooldown","message":"All credentials for model gemini-claude-opus-4-5-thinking are cooling down via provider antigravity","model":"gemini-claude-opus-4-5-thinking","provider":"antigravity","reset_seconds":1,"reset_time":"1s"}}{\n  "error": {\n    "code": 429,\n    "message": "Resource has been exhausted (e.g. check quota).",\n    "status": "RESOURCE_EXHAUSTED"\n  }\n}',
  status = 429,
  headers include: Retry-After: 1
}

Steps to reproduce

1. Configure ProxyPal with antigravity provider and gemini-claude-opus-4-5-thinking model.
2. Send any request from CodeCompanion.nvim.
3. Receive 429 / RESOURCE_EXHAUSTED and model_cooldown every time.

Expected behavior

Requests should succeed or, if throttled, recover after the cooldown window.

Actual behavior

Continuous 429 + model_cooldown for >1 hour, across two Google Pro accounts.

Questions

• Could v0.3.86 have changed rate limiting / credential rotation behavior for antigravity?
• Is the concatenated JSON error body (multiple JSON objects in one body) expected?
• Any additional logs I should collect (ProxyPal debug logs, provider traces, etc.)?

Additional info

I can provide:

• ProxyPal config (redacted)
• OS: Windows 11 Version 24H2