From a601c00afdc5ddda50cb7552aef0dc5f3d9dcf0c Mon Sep 17 00:00:00 2001
From: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
Date: Mon, 7 Sep 2026 18:47:25 -0700
Subject: [PATCH] fix(bedrock): pass litellm_params into the Bedrock embedding
 call so drop_params reaches Marengo 3.0

---
 litellm/main.py                               |  2 +-
 ...est_twelvelabs_marengo_3_transformation.py | 34 +++++++++++++++++++
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/litellm/main.py b/litellm/main.py
index 75b7f7f10a5..56f9cb2c0d0 100644
--- a/litellm/main.py
+++ b/litellm/main.py
@@ -6545,7 +6545,7 @@ def embedding(
                 client=client,
                 timeout=timeout,
                 aembedding=aembedding,
-                litellm_params={},
+                litellm_params=litellm_params_dict,
                 api_base=api_base,
                 print_verbose=print_verbose,
                 extra_headers=headers,
diff --git a/tests/test_litellm/llms/bedrock/embed/test_twelvelabs_marengo_3_transformation.py b/tests/test_litellm/llms/bedrock/embed/test_twelvelabs_marengo_3_transformation.py
index 5033256d089..d8d29cac35e 100644
--- a/tests/test_litellm/llms/bedrock/embed/test_twelvelabs_marengo_3_transformation.py
+++ b/tests/test_litellm/llms/bedrock/embed/test_twelvelabs_marengo_3_transformation.py
@@ -1,9 +1,11 @@
 import json
+from unittest.mock import Mock, patch
 
 import pytest
 
 import litellm
 from litellm.llms.bedrock.common_utils import BedrockError
+from litellm.llms.custom_httpx.http_handler import HTTPHandler
 from litellm.llms.bedrock.embed.twelvelabs_marengo_3_transformation import (
     MARENGO_2_7_ONLY_PARAMS,
     build_marengo_3_request,
@@ -356,3 +358,35 @@ def test_timed_media_options_are_rejected_on_untimed_input_types_unless_dropped(
     assert build_marengo_3_request(DUCK_DATA_URL, timed, drop_params=True) == build_marengo_3_request(
         DUCK_DATA_URL, params
     )
+
+
+def _embed_marengo_3_us(client: HTTPHandler, **params: object):
+    return litellm.embedding(
+        model=f"bedrock/{MARENGO_3_US}",
+        input="hello",
+        client=client,
+        aws_region_name="us-east-1",
+        aws_bedrock_runtime_endpoint="https://bedrock-runtime.us-east-1.amazonaws.com",
+        api_key="test-bearer-token",
+        **params,
+    )
+
+
+def test_per_request_drop_params_reaches_the_marengo_3_builder(monkeypatch):
+    monkeypatch.setattr(litellm, "drop_params", False)
+    client = HTTPHandler()
+    with patch.object(client, "post") as mock_post:
+        mock_response = Mock()
+        mock_response.status_code = 200
+        mock_response.text = json.dumps({"data": [{"embedding": [0.1, 0.2]}]})
+        mock_response.json = lambda: json.loads(mock_response.text)
+        mock_post.return_value = mock_response
+
+        with pytest.raises(litellm.BadRequestError, match=r"Marengo 2\.7 parameters textTruncate"):
+            _embed_marengo_3_us(client, textTruncate="end")
+        assert mock_post.call_count == 0
+
+        response = _embed_marengo_3_us(client, textTruncate="end", drop_params=True)
+
+    assert response.data[0]["embedding"] == [0.1, 0.2]
+    assert json.loads(mock_post.call_args.kwargs["data"]) == {"inputType": "text", "text": {"inputText": "hello"}}