From 330a7035187e98c2ec12e1bd3974f4acce5fdfad Mon Sep 17 00:00:00 2001
From: SwiftWinds <12981958+SwiftWinds@users.noreply.github.com>
Date: Fri, 3 Apr 2026 16:05:16 -0700
Subject: [PATCH] feat: always use our own compaction

---
 litellm/responses/main.py | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/litellm/responses/main.py b/litellm/responses/main.py
index c82574278ba..7d7a6e4d572 100644
--- a/litellm/responses/main.py
+++ b/litellm/responses/main.py
@@ -919,7 +919,16 @@ def responses(
                 **emulated_kwargs,
             )
 
-        if responses_api_provider_config is None:
+        # If the user enables compaction context_management, always use our compaction handler, never the provider's native compaction
+        _has_compaction = False
+        _ctx_mgmt = response_api_optional_params.get("context_management")
+        if _ctx_mgmt and isinstance(_ctx_mgmt, list):
+            _has_compaction = any(
+                isinstance(e, dict) and e.get("type") == "compaction"
+                for e in _ctx_mgmt
+            )
+
+        if responses_api_provider_config is None or _has_compaction:
             return litellm_completion_transformation_handler.response_api_handler(
                 model=model,
                 input=input,