diff --git a/discord/channel.py b/discord/channel.py
index 1c0147e6d..f9c4f2cad 100644
--- a/discord/channel.py
+++ b/discord/channel.py
@@ -673,6 +673,11 @@ 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 a58078337..851476066 100644
--- a/discord/guild.py
+++ b/discord/guild.py
@@ -739,6 +739,11 @@ 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