diff --git a/discord/channel.py b/discord/channel.py
index 488fb24bc..ac3a61913 100644
--- a/discord/channel.py
+++ b/discord/channel.py
@@ -646,6 +646,11 @@ class TextChannel(discord.abc.Messageable, discord.abc.GuildChannel, Hashable):
     def get_thread(self, thread_id: int, /) -> Optional[Thread]:
         """Returns a thread with the given ID.
 
+        .. note::
+
+            This does not always retrieve archived threads, as they are not retained in the internal
+            cache. Use :func:`Guild.fetch_channel` instead.
+
         .. versionadded:: 2.0
 
         Parameters
diff --git a/discord/guild.py b/discord/guild.py
index 77a2148e5..533bff67c 100644
--- a/discord/guild.py
+++ b/discord/guild.py
@@ -774,6 +774,11 @@ class Guild(Hashable):
     def get_thread(self, thread_id: int, /) -> Optional[Thread]:
         """Returns a thread with the given ID.
 
+        .. note::
+
+            This does not always retrieve archived threads, as they are not retained in the internal
+            cache. Use :func:`fetch_channel` instead.
+
         .. versionadded:: 2.0
 
         Parameters