diff --git a/src/anthropic/resources/messages.py b/src/anthropic/resources/messages.py
index f328bbd1..a7e58250 100644
--- a/src/anthropic/resources/messages.py
+++ b/src/anthropic/resources/messages.py
@@ -56,7 +56,7 @@ def create(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -256,7 +256,7 @@ def create(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -456,7 +456,7 @@ def create(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -656,7 +656,7 @@ def create(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -712,7 +712,7 @@ def stream(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -745,7 +745,7 @@ def stream(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -778,7 +778,7 @@ def stream(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -852,7 +852,7 @@ async def create(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -1052,7 +1052,7 @@ async def create(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -1252,7 +1252,7 @@ async def create(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -1452,7 +1452,7 @@ async def create(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -1508,7 +1508,7 @@ def stream(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -1541,7 +1541,7 @@ def stream(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],
@@ -1574,7 +1574,7 @@ def stream(
                 "claude-3-opus-20240229",
                 "claude-3-sonnet-20240229",
                 "claude-3-haiku-20240307",
-                "claude-2.1'",
+                "claude-2.1",
                 "claude-2.0",
                 "claude-instant-1.2",
             ],