From d2cd3e9b0aecf747c2c8d02f0daf8ad63aa3d018 Mon Sep 17 00:00:00 2001
From: Ishaan Jaffer <ishaanjaffer0324@gmail.com>
Date: Wed, 14 Jan 2026 17:13:18 -0800
Subject: [PATCH] fix UsageDelta

---
 litellm/types/llms/anthropic.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/litellm/types/llms/anthropic.py b/litellm/types/llms/anthropic.py
index 371f008c04b..7d901a0fa65 100644
--- a/litellm/types/llms/anthropic.py
+++ b/litellm/types/llms/anthropic.py
@@ -475,6 +475,8 @@ class MessageDelta(TypedDict, total=False):
 class UsageDelta(TypedDict, total=False):
     input_tokens: int
     output_tokens: int
+    cache_creation_input_tokens: int
+    cache_read_input_tokens: int
 
 
 class MessageBlockDelta(TypedDict):