{"success":false,"status_code":402,"provider":"openrouter","base_url":"https://openrouter.ai/api/v1","model":"x-ai/grok-4.3","api_key_present":true,"api_key_source":"OPENROUTER_API_KEY","response_preview":"{\"error\":{\"message\":\"Insufficient credits. Add more using https://openrouter.ai/settings/credits\",\"code\":402}}","error":null,"direct_http_success":false,"sdk_success":false,"direct_http_status":402,"sdk_error":"APIStatusError: Error code: 402 - {'error': {'message': 'Insufficient credits. Add more using https://openrouter.ai/settings/credits', 'code': 402}}"}