{"record":{"id":"ab027054a46a9618","repo":"BerriAI/litellm","slug":"parameter-k-is-not-supported-for-model-model-ab0270","errorCode":null,"errorMessage":"Parameter {k} is not supported for model {model}. Supported parameters are {supported_params}. Set drop_params=True to drop unsupported parameters.","messagePattern":"Parameter (.+?) is not supported for model (.+?)\\. Supported parameters are (.+?)\\. Set drop_params=True to drop unsupported parameters\\.","errorType":"validation","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"litellm/llms/fal_ai/image_generation/flux_pro_v11_ultra_transformation.py","lineNumber":85,"sourceCode":"                if k in supported_params:\n                    # Use mapped parameter name if exists\n                    mapped_key = param_mapping.get(k, k)\n                    mapped_value = non_default_params[k]\n\n                    # Transform specific parameters\n                    if k == \"response_format\":\n                        # Map OpenAI response formats to image formats\n                        if mapped_value in [\"b64_json\", \"url\"]:\n                            mapped_value = \"jpeg\"\n                    elif k == \"size\":\n                        # Map OpenAI size format to Flux aspect ratio\n                        mapped_value = self._map_aspect_ratio(mapped_value)\n\n                    optional_params[mapped_key] = mapped_value\n                elif drop_params:\n                    pass\n                else:\n                    raise ValueError(\n                        f\"Parameter {k} is not supported for model {model}. Supported parameters are {supported_params}. Set drop_params=True to drop unsupported parameters.\"\n                    )\n\n        return optional_params\n\n    def _map_aspect_ratio(self, size: str) -> str:\n        \"\"\"\n        Map OpenAI size format to Flux Pro aspect ratio format.\n\n        OpenAI format: \"1024x1024\", \"1792x1024\", etc.\n        Flux format: \"21:9\", \"16:9\", \"4:3\", \"3:2\", \"1:1\", \"2:3\", \"3:4\", \"9:16\", \"9:21\"\n\n        Default: \"16:9\"\n        \"\"\"\n        # Map common OpenAI sizes to Flux aspect ratios\n        size_to_aspect_ratio: Final = {\n            \"1024x1024\": \"1:1\",\n            \"512x512\": \"1:1\",","sourceCodeStart":67,"sourceCodeEnd":103,"githubUrl":"https://github.com/BerriAI/litellm/blob/6c2dcb801bf2b75c18f1bb24140e7cf57465cc4d/litellm/llms/fal_ai/image_generation/flux_pro_v11_ultra_transformation.py#L67-L103","documentation":"Error \"Parameter {k} is not supported for model {model}. Supported parameters are {supported_params}. Set drop_params=True to drop unsupported parameters.\" thrown in BerriAI/litellm.","triggerScenarios":"Thrown at litellm/llms/fal_ai/image_generation/flux_pro_v11_ultra_transformation.py:85 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Remove the unsupported parameter or set drop_params=True."],"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"}