{"record":{"id":"a51941e2d6369c32","repo":"BerriAI/litellm","slug":"unsupported-size-value-size-use-a-known-size","errorCode":null,"errorMessage":"Unsupported size value: '{size}'. Use a known size (e.g., '1024x1024') or a custom 'WIDTHxHEIGHT' string.","messagePattern":"Unsupported size value: '(.+?)'\\. Use a known size \\(e\\.g\\., '1024x1024'\\) or a custom 'WIDTHxHEIGHT' string\\.","errorType":"validation","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"litellm/llms/azure_ai/image_edit/mai_transformation.py","lineNumber":82,"sourceCode":"        known_sizes: Final = {\n            \"1024x1024\",\n            \"1792x1024\",\n            \"1024x1792\",\n            \"512x512\",\n            \"256x256\",\n        }\n\n        if size in known_sizes:\n            return\n\n        if \"x\" in size:\n            try:\n                tuple(map(int, size.lower().split(\"x\", 1)))\n                return\n            except ValueError:\n                raise ValueError(f\"Invalid size format: '{size}'. Expected format 'WIDTHxHEIGHT' (e.g., '1024x1024').\")\n\n        raise ValueError(\n            f\"Unsupported size value: '{size}'. Use a known size (e.g., '1024x1024') or a custom 'WIDTHxHEIGHT' string.\"\n        )\n\n    def validate_environment(\n        self,\n        headers: dict,\n        model: str,\n        api_key: str | None = None,\n        litellm_params: dict | None = None,\n        api_base: str | None = None,\n    ) -> dict:\n        api_key = AzureFoundryModelInfo.get_api_key(api_key)\n\n        if not api_key:\n            raise ValueError(\n                f\"Azure AI API key is required for model {model}. \"\n                \"Set AZURE_AI_API_KEY environment variable or pass api_key parameter.\"\n            )","sourceCodeStart":64,"sourceCodeEnd":100,"githubUrl":"https://github.com/BerriAI/litellm/blob/6c2dcb801bf2b75c18f1bb24140e7cf57465cc4d/litellm/llms/azure_ai/image_edit/mai_transformation.py#L64-L100","documentation":"Error \"Unsupported size value: '{size}'. Use a known size (e.g., '1024x1024') or a custom 'WIDTHxHEIGHT' string.\" thrown in BerriAI/litellm.","triggerScenarios":"Thrown at litellm/llms/azure_ai/image_edit/mai_transformation.py:82 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Use a known size or a valid 'WIDTHxHEIGHT' string."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"6c2dcb801bf2b75c18f1bb24140e7cf57465cc4d","analyzedAt":"2026-08-15T07:12:03.035Z","schemaVersion":2},"datasetVersion":"2026-08-15T17:31:12.345Z"}