diff --git a/litellm/router.py b/litellm/router.py
index e15cf013585..30cc32f02a9 100644
--- a/litellm/router.py
+++ b/litellm/router.py
@@ -9558,12 +9558,12 @@ class Router:
 
         Args:
             model_id: Model ID or model name from model_list (e.g., "gpt-4o-litellm")
-             team_id: Optional team id of the caller. When set, team-scoped
-                 deployments (indexed by team public model name, including team
-                 wildcard models like "openai/*") are also considered. Exact-ID,
-                 name, and wildcard lookups never resolve a deployment owned by
-                 a different team. Callers without a team id retain legacy
-                 exact-ID behavior for internal credential-resolution flows.
+            team_id: Optional team id of the caller. When set, team-scoped
+                deployments (indexed by team public model name, including team
+                wildcard models like "openai/*") are also considered. Exact-ID,
+                name, and wildcard lookups never resolve a deployment owned by
+                a different team. Callers without a team id retain legacy
+                exact-ID behavior for internal credential-resolution flows.
 
         Returns:
             Dictionary containing api_key, api_base, custom_llm_provider, etc.
diff --git a/litellm/types/router.py b/litellm/types/router.py
index 1688ff65b30..ab6c807ba20 100644
--- a/litellm/types/router.py
+++ b/litellm/types/router.py
@@ -241,7 +241,6 @@ class CredentialLiteLLMParams(BaseModel):
     api_key: str | None = None
     api_base: str | None = None
     api_version: str | None = None
-    project_id: str | None = None
     ## AZURE OAUTH ##
     # Without this field, ``get_deployment_credentials_with_provider``
     # round-trips ``litellm_params`` through a strict Pydantic dump and
diff --git a/tests/test_litellm/test_router.py b/tests/test_litellm/test_router.py
index 92fac0f6eb1..e436b4852b2 100644
--- a/tests/test_litellm/test_router.py
+++ b/tests/test_litellm/test_router.py
@@ -4560,26 +4560,6 @@ def test_get_deployment_credentials_with_provider_fails_closed_for_missing_named
     assert credentials is None
 
 
-def test_get_deployment_credentials_with_provider_preserves_project_id():
-    router = litellm.Router(
-        model_list=[
-            {
-                "model_name": "embedding-model",
-                "litellm_params": {
-                    "model": "watsonx/ibm/slate-125m-english-rtrvr",
-                    "api_key": "test-key",
-                    "project_id": "embedding-project",
-                },
-            }
-        ]
-    )
-
-    credentials = router.get_deployment_credentials_with_provider(model_id="embedding-model")
-
-    assert credentials is not None
-    assert credentials["project_id"] == "embedding-project"
-
-
 def test_get_deployment_credentials_with_provider_bedrock_batch_fields():
     """
     Test that get_deployment_credentials_with_provider returns the deployment's