diff --git a/api/core/file/file_manager.py b/api/core/file/file_manager.py
index 389659c292..eb260a8f84 100644
--- a/api/core/file/file_manager.py
+++ b/api/core/file/file_manager.py
@@ -26,7 +26,7 @@ def get_attr(*, file: File, attr: FileAttribute):
         case FileAttribute.TRANSFER_METHOD:
             return file.transfer_method.value
         case FileAttribute.URL:
-            return _to_url(file)
+            return file.remote_url
         case FileAttribute.EXTENSION:
             return file.extension
         case _:
diff --git a/api/core/tools/provider/builtin/podcast_generator/podcast_generator.yaml b/api/core/tools/provider/builtin/podcast_generator/podcast_generator.yaml
index bbae1f81b6..bd02b32020 100644
--- a/api/core/tools/provider/builtin/podcast_generator/podcast_generator.yaml
+++ b/api/core/tools/provider/builtin/podcast_generator/podcast_generator.yaml
@@ -32,18 +32,3 @@ credentials_for_provider:
     placeholder:
       en_US: Enter your TTS service API key
       zh_Hans: 输入您的 TTS 服务 API 密钥
-  openai_base_url:
-    type: text-input
-    required: false
-    label:
-      en_US: OpenAI base URL
-      zh_Hans: OpenAI base URL
-      pt_BR: OpenAI base URL
-    help:
-      en_US: Please input your OpenAI base URL
-      zh_Hans: 请输入你的 OpenAI base URL
-      pt_BR: Please input your OpenAI base URL
-    placeholder:
-      en_US: Please input your OpenAI base URL
-      zh_Hans: 请输入你的 OpenAI base URL
-      pt_BR: Please input your OpenAI base URL
diff --git a/api/core/tools/provider/builtin/podcast_generator/tools/podcast_audio_generator.py b/api/core/tools/provider/builtin/podcast_generator/tools/podcast_audio_generator.py
index 8f7d4712cc..476e2d01e1 100644
--- a/api/core/tools/provider/builtin/podcast_generator/tools/podcast_audio_generator.py
+++ b/api/core/tools/provider/builtin/podcast_generator/tools/podcast_audio_generator.py
@@ -5,7 +5,6 @@ import warnings
 from typing import Any, Literal, Optional, Union
 
 import openai
-from yarl import URL
 
 from core.tools.entities.tool_entities import ToolInvokeMessage
 from core.tools.errors import ToolParameterValidationError, ToolProviderCredentialValidationError
@@ -61,18 +60,8 @@ class PodcastAudioGeneratorTool(BuiltinTool):
         if not api_key:
             raise ToolProviderCredentialValidationError("OpenAI API key is missing")
 
-        # Get OpenAI base URL
-        openai_base_url = self.runtime.credentials.get("openai_base_url", None)
-        if not openai_base_url:
-            openai_base_url = None
-        else:
-            openai_base_url = str(URL(openai_base_url) / "v1")
-
         # Initialize OpenAI client
-        client = openai.OpenAI(
-            api_key=api_key,
-            base_url=openai_base_url,
-        )
+        client = openai.OpenAI(api_key=api_key)
 
         # Create a thread pool
         max_workers = 5