Error: Gemini 3.1 Pro - Unknown error

Error Details

Model: Gemini 3.1 Pro
Provider: gemini
Status Code: N/A

Error Output

{"error":{"message":"{\n  \"error\": {\n    \"code\": 429,\n    \"message\": \"You exceeded your current quota, please check your plan and billing details. For more information on this error, head to: https://ai.google.dev/gemini-api/docs/rate-limits. To monitor your current usage, head to: https://ai.dev/rate-limit. \\n* Quota exceeded for metric: generativelanguage.googleapis.com/generate_content_free_tier_input_token_count, limit: 0, model: gemini-3.1-pro\\n* Quota exceeded for metric: generativelanguage.googleapis.com/generate_content_free_tier_input_token_count, limit: 0, model: gemini-3.1-pro\\n* Quota exceeded for metric: generativelanguage.googleapis.com/generate_content_free_tier_requests, limit: 0, model: gemini-3.1-pro\\n* Quota exceeded for metric: generativelanguage.googleapis.com/generate_content_free_tier_requests, limit: 0, model: gemini-3.1-pro\\nPlease retry in 24.019299654s.\",\n    \"status\": \"RESOURCE_EXHAUSTED\",\n    \"details\": [\n      {\n        \"@type\": \"type.googleapis.com/google.rpc.Help\",\n        \"links\": [\n          {\n            \"description\": \"Learn more about Gemini API quotas\",\n            \"url\": \"https://ai.google.dev/gemini-api/docs/rate-limits\"\n          }\n        ]\n      },\n      {\n        \"@type\": \"type.googleapis.com/google.rpc.QuotaFailure\",\n        \"violations\": [\n          {\n            \"quotaMetric\": \"generativelanguage.googleapis.com/generate_content_free_tier_input_token_count\",\n            \"quotaId\": \"GenerateContentInputTokensPerModelPerDay-FreeTier\",\n            \"quotaDimensions\": {\n              \"location\": \"global\",\n              \"model\": \"gemini-3.1-pro\"\n            }\n          },\n          {\n            \"quotaMetric\": \"generativelanguage.googleapis.com/generate_content_free_tier_input_token_count\",\n            \"quotaId\": \"GenerateContentInputTokensPerModelPerMinute-FreeTier\",\n            \"quotaDimensions\": {\n              \"location\": \"global\",\n              \"model\": \"gemini-3.1-pro\"\n            }\n          },\n          {\n            \"quotaMetric\": \"generativelanguage.googleapis.com/generate_content_free_tier_requests\",\n            \"quotaId\": \"GenerateRequestsPerMinutePerProjectPerModel-FreeTier\",\n            \"quotaDimensions\": {\n              \"location\": \"global\",\n              \"model\": \"gemini-3.1-pro\"\n            }\n          },\n          {\n            \"quotaMetric\": \"generativelanguage.googleapis.com/generate_content_free_tier_requests\",\n            \"quotaId\": \"GenerateRequestsPerDayPerProjectPerModel-FreeTier\",\n            \"quotaDimensions\": {\n              \"location\": \"global\",\n              \"model\": \"gemini-3.1-pro\"\n            }\n          }\n        ]\n      },\n      {\n        \"@type\": \"type.googleapis.com/google.rpc.RetryInfo\",\n        \"retryDelay\": \"24s\"\n      }\n    ]\n  }\n}\n","code":429,"status":"Too Many Requests"}}

Additional Context
Please add any additional context about the error here

No file, test, or entry point is identified in the issue. Start by reviewing the Gemini provider integration and reproducing the reported Gemini 3.1 Pro 429 response; done should include a clear determination of whether the response is handled correctly or why it appears as an unknown error.