Error: Gemini 3 Pro Preview - Unknown error

Error Details

Model: Gemini 3 Pro Preview
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 3.423307396s.\",\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\": \"3s\"\n      }\n    ]\n  }\n}\n","code":429,"status":"Too Many Requests"}}

Additional Context
Please add any additional context about the error here

Start with the reported Gemini 3 Pro Preview error output and the provider handling for Gemini responses. Reproduce the 429 quota-exceeded response if possible, then verify that this reported condition is surfaced distinctly from an unknown error and that the relevant test coverage reflects the expected result.