diff --git a/run.py b/run.py
index 4a8afa27b..b8afa1544 100644
--- a/run.py
+++ b/run.py
@@ -28,16 +28,17 @@
 
 from voicevox_engine import __version__
 from voicevox_engine.cancellable_engine import CancellableEngine
-from voicevox_engine.downloadable_library import LibraryManager
 from voicevox_engine.engine_manifest import EngineManifestLoader
 from voicevox_engine.engine_manifest.EngineManifest import EngineManifest
 from voicevox_engine.kana_parser import create_kana, parse_kana
+from voicevox_engine.library_manager import LibraryManager
 from voicevox_engine.metas.MetasStore import MetasStore, construct_lookup
 from voicevox_engine.model import (
     AccentPhrase,
     AudioQuery,
-    DownloadableLibrary,
-    InstalledLibrary,
+    BaseLibraryInfo,
+    DownloadableLibraryInfo,
+    InstalledLibraryInfo,
     MorphableTargetInfo,
     ParseKanaBadRequest,
     ParseKanaError,
@@ -845,10 +846,10 @@ def speaker_info(
 
     @app.get(
         "/downloadable_libraries",
-        response_model=list[DownloadableLibrary],
+        response_model=list[DownloadableLibraryInfo],
         tags=["音声ライブラリ管理"],
     )
-    def downloadable_libraries() -> list[DownloadableLibrary]:
+    def downloadable_libraries() -> list[DownloadableLibraryInfo]:
         """
         ダウンロード可能な音声ライブラリの情報を返します。
 
@@ -862,10 +863,10 @@ def downloadable_libraries() -> list[DownloadableLibrary]:
 
     @app.get(
         "/installed_libraries",
-        response_model=dict[str, InstalledLibrary],
+        response_model=dict[str, InstalledLibraryInfo],
         tags=["音声ライブラリ管理"],
     )
-    def installed_libraries() -> dict[str, InstalledLibrary]:
+    def installed_libraries() -> dict[str, InstalledLibraryInfo]:
         """
         インストールした音声ライブラリの情報を返します。
 
@@ -1226,7 +1227,7 @@ def setting_post(
             },
         )
 
-    # VvlibManifestモデルはAPIとして表には出ないが、エディタ側で利用したいので、手動で追加する
+    # BaseLibraryInfo/VvlibManifestモデルはAPIとして表には出ないが、エディタ側で利用したいので、手動で追加する
     # ref: https://fastapi.tiangolo.com/advanced/extending-openapi/#modify-the-openapi-schema
     def custom_openapi():
         if app.openapi_schema:
@@ -1245,6 +1246,13 @@ def custom_openapi():
         openapi_schema["components"]["schemas"][
             "VvlibManifest"
         ] = VvlibManifest.schema()
+        # ref_templateを指定しない場合、definitionsを参照してしまうので、手動で指定する
+        base_library_info = BaseLibraryInfo.schema(
+            ref_template="#/components/schemas/{model}"
+        )
+        # definitionsは既存のモデルを重複して定義するため、不要なので削除
+        del base_library_info["definitions"]
+        openapi_schema["components"]["schemas"]["BaseLibraryInfo"] = base_library_info
         app.openapi_schema = openapi_schema
         return openapi_schema
 
diff --git a/test/test_downloadable_library.py b/test/test_library_manager.py
similarity index 99%
rename from test/test_downloadable_library.py
rename to test/test_library_manager.py
index f3f47efe2..9924a0703 100644
--- a/test/test_downloadable_library.py
+++ b/test/test_library_manager.py
@@ -10,7 +10,7 @@
 
 from fastapi import HTTPException
 
-from voicevox_engine.downloadable_library import LibraryManager
+from voicevox_engine.library_manager import LibraryManager
 
 vvlib_manifest_name = "vvlib_manifest.json"
 
diff --git a/voicevox_engine/downloadable_library.py b/voicevox_engine/library_manager.py
similarity index 96%
rename from voicevox_engine/downloadable_library.py
rename to voicevox_engine/library_manager.py
index 1e0932da2..9168a0a4b 100644
--- a/voicevox_engine/downloadable_library.py
+++ b/voicevox_engine/library_manager.py
@@ -11,7 +11,11 @@
 from pydantic import ValidationError
 from semver.version import Version
 
-from voicevox_engine.model import DownloadableLibrary, InstalledLibrary, VvlibManifest
+from voicevox_engine.model import (
+    DownloadableLibraryInfo,
+    InstalledLibraryInfo,
+    VvlibManifest,
+)
 
 __all__ = ["LibraryManager"]
 
@@ -76,9 +80,9 @@ def downloadable_libraries(self):
                     )
                     for i in range(1, 4)
                 ]
-            return list(map(DownloadableLibrary.parse_obj, libraries))
+            return list(map(DownloadableLibraryInfo.parse_obj, libraries))
 
-    def installed_libraries(self) -> Dict[str, InstalledLibrary]:
+    def installed_libraries(self) -> Dict[str, InstalledLibraryInfo]:
         library = {}
         for library_dir in self.library_root_dir.iterdir():
             if library_dir.is_dir():
diff --git a/voicevox_engine/model.py b/voicevox_engine/model.py
index f2d3524ee..a90fcc8ac 100644
--- a/voicevox_engine/model.py
+++ b/voicevox_engine/model.py
@@ -127,9 +127,9 @@ class LibrarySpeaker(BaseModel):
     speaker_info: SpeakerInfo = Field(title="話者の追加情報")
 
 
-class DownloadableLibrary(BaseModel):
+class BaseLibraryInfo(BaseModel):
     """
-    ダウンロード可能な音声ライブラリの情報
+    音声ライブラリの情報
     """
 
     name: str = Field(title="音声ライブラリの名前")
@@ -140,7 +140,16 @@ class DownloadableLibrary(BaseModel):
     speakers: List[LibrarySpeaker] = Field(title="音声ライブラリに含まれる話者のリスト")
 
 
-class InstalledLibrary(DownloadableLibrary):
+# 今後InstalledLibraryInfo同様に拡張する可能性を考え、モデルを分けている
+class DownloadableLibraryInfo(BaseLibraryInfo):
+    """
+    ダウンロード可能な音声ライブラリの情報
+    """
+
+    pass
+
+
+class InstalledLibraryInfo(BaseLibraryInfo):
     """
     インストール済み音声ライブラリの情報
     """