diff --git a/litellm/litellm_core_utils/prompt_templates/factory.py b/litellm/litellm_core_utils/prompt_templates/factory.py
index 84e4aeb1a2f..1bcf53e3778 100644
--- a/litellm/litellm_core_utils/prompt_templates/factory.py
+++ b/litellm/litellm_core_utils/prompt_templates/factory.py
@@ -2626,7 +2626,7 @@ def anthropic_messages_pt(  # noqa: PLR0915
                 _list_has_thinking = False
                 if _content_is_list:
                     for _item in assistant_content_block["content"]:
-                        if isinstance(_item, dict) and _item.get("type") == "thinking":
+                        if isinstance(_item, dict) and _item.get("type") in ("thinking", "redacted_thinking"):
                             _list_has_thinking = True
                             break