diff --git a/src/claude_agent_sdk/_internal/transport/subprocess_cli.py b/src/claude_agent_sdk/_internal/transport/subprocess_cli.py
index a4882db1..a152b263 100644
--- a/src/claude_agent_sdk/_internal/transport/subprocess_cli.py
+++ b/src/claude_agent_sdk/_internal/transport/subprocess_cli.py
@@ -6,6 +6,7 @@
 import platform
 import re
 import shutil
+import subprocess
 import sys
 import tempfile
 from collections.abc import AsyncIterable, AsyncIterator
@@ -36,6 +37,13 @@
 # Other platforms have much higher limits
 _CMD_LENGTH_LIMIT = 8000 if platform.system() == "Windows" else 100000
 
+# Platform-specific process creation flags
+# On Windows, CREATE_NO_WINDOW prevents a visible console window from appearing
+# when spawning the CLI subprocess, which improves UX for GUI applications
+_CREATION_FLAGS = (
+    subprocess.CREATE_NO_WINDOW if sys.platform == "win32" and hasattr(subprocess, "CREATE_NO_WINDOW") else 0
+)
+
 
 class SubprocessCLITransport(Transport):
     """Subprocess transport using Claude Code CLI."""
@@ -408,6 +416,7 @@ async def connect(self) -> None:
                 cwd=self._cwd,
                 env=process_env,
                 user=self._options.user,
+                creationflags=_CREATION_FLAGS,
             )
 
             if self._process.stdout:
@@ -636,6 +645,7 @@ async def _check_claude_version(self) -> None:
                     [self._cli_path, "-v"],
                     stdout=PIPE,
                     stderr=PIPE,
+                    creationflags=_CREATION_FLAGS,
                 )
 
                 if version_process.stdout: