For the past week I keep getting 503 errors (model is overloaded) when trying to use the gemini-3-pro-image-preview model (NanoBanana)… it was working perfectly before. What is going on?
Error generating content: 503 UNAVAILABLE. {‘error’: {‘code’: 503, ‘message’: ‘The model is overloaded. Please try again later.’, ‘status’: ‘UNAVAILABLE’}}