From 25a19b2091b4aff7f4e60ca10af36281fae55a7a Mon Sep 17 00:00:00 2001
From: Sameer Kankute <sameer@berri.ai>
Date: Fri, 6 Feb 2026 17:45:05 +0530
Subject: [PATCH] Add update_headers_with_filtered_beta in anthropic

---
 .../experimental_pass_through/messages/transformation.py  | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/litellm/llms/anthropic/experimental_pass_through/messages/transformation.py b/litellm/llms/anthropic/experimental_pass_through/messages/transformation.py
index 308bf367d0..df9679c033 100644
--- a/litellm/llms/anthropic/experimental_pass_through/messages/transformation.py
+++ b/litellm/llms/anthropic/experimental_pass_through/messages/transformation.py
@@ -2,6 +2,9 @@ from typing import Any, AsyncIterator, Dict, List, Optional, Tuple
 
 import httpx
 
+from litellm.anthropic_beta_headers_manager import (
+    update_headers_with_filtered_beta,
+)
 from litellm.litellm_core_utils.litellm_logging import Logging as LiteLLMLoggingObj
 from litellm.litellm_core_utils.litellm_logging import verbose_logger
 from litellm.llms.base_llm.anthropic_messages.transformation import (
@@ -90,6 +93,11 @@ class AnthropicMessagesConfig(BaseAnthropicMessagesConfig):
             optional_params=optional_params,
         )
 
+        headers = update_headers_with_filtered_beta(
+            headers=headers,
+            provider="anthropic",
+        )
+
         return headers, api_base
 
     def transform_anthropic_messages_request(