A Gemini failure in Janitor AI is usually a 429 quota error, a content filter block, or a key that stopped working; only the last is anything like a suspension.
Google's rate limits apply per project, not per API key, so extra keys in one project do not add quota.
Google does not publish fixed free-tier message counts; check your real limits in the AI Studio rate limit page.
Do not retry 400, 402 or 403 errors; retry 429 and 5xx errors with exponential backoff.
Keep a second proxy configuration, such as DeepSeek, so one provider failing does not stop your chats.