diff --git a/litellm/interactions/litellm_responses_transformation/transformation.py b/litellm/interactions/litellm_responses_transformation/transformation.py
index 173d4ca8764..0ff1a97cd0b 100644
--- a/litellm/interactions/litellm_responses_transformation/transformation.py
+++ b/litellm/interactions/litellm_responses_transformation/transformation.py
@@ -300,9 +300,6 @@ class LiteLLMResponsesInteractionsConfig:
                 "total_output_tokens": getattr(usage, "output_tokens", 0),
             }
 
-        # Add role
-        interactions_response_dict["role"] = "model"
-
         # Add updated (same as created for now)
         interactions_response_dict["updated"] = created
 
diff --git a/litellm/types/interactions/generated.py b/litellm/types/interactions/generated.py
index b38cd8f58b9..a07642073af 100644
--- a/litellm/types/interactions/generated.py
+++ b/litellm/types/interactions/generated.py
@@ -954,9 +954,6 @@ class Interaction(BaseModel):
         None,
         description="Output only. The time at which the response was last updated in ISO 8601 format\n(YYYY-MM-DDThh:mm:ssZ).",
     )
-    role: Optional[str] = Field(
-        None, description="Output only. The role of the interaction."
-    )
     outputs: Optional[List[Content]] = Field(
         None, description="Output only. Responses from the model."
     )
@@ -1031,9 +1028,6 @@ class CreateModelInteractionParams(BaseModel):
         None,
         description="Output only. The time at which the response was last updated in ISO 8601 format\n(YYYY-MM-DDThh:mm:ssZ).",
     )
-    role: Optional[str] = Field(
-        None, description="Output only. The role of the interaction."
-    )
     outputs: Optional[List[Content]] = Field(
         None, description="Output only. Responses from the model."
     )
@@ -1101,9 +1095,6 @@ class CreateAgentInteractionParams(BaseModel):
         None,
         description="Output only. The time at which the response was last updated in ISO 8601 format\n(YYYY-MM-DDThh:mm:ssZ).",
     )
-    role: Optional[str] = Field(
-        None, description="Output only. The role of the interaction."
-    )
     outputs: Optional[List[Content]] = Field(
         None, description="Output only. Responses from the model."
     )
@@ -1323,7 +1314,6 @@ class InteractionsAPIResponse(BaseLiteLLMOpenAIResponseObject):
     status: Optional[str] = None
     created: Optional[str] = None
     updated: Optional[str] = None
-    role: Optional[str] = None
     # Legacy schema field (Api-Revision: 2026-05-07). Remove after June 8, 2026.
     outputs: Optional[List[Dict[str, Any]]] = None
     # New schema field (Api-Revision: 2026-05-20).
@@ -1356,7 +1346,6 @@ class InteractionsAPIStreamingResponse(BaseLiteLLMOpenAIResponseObject):
     status: Optional[str] = None
     created: Optional[str] = None
     updated: Optional[str] = None
-    role: Optional[str] = None
     # Legacy schema field (Api-Revision: 2026-05-07). Remove after June 8, 2026.
     outputs: Optional[List[Dict[str, Any]]] = None
     # New schema field (Api-Revision: 2026-05-20).
diff --git a/tests/test_litellm/interactions/test_google_interactions_integration.py b/tests/test_litellm/interactions/test_google_interactions_integration.py
index cfff26d51ef..9c651cc94f5 100644
--- a/tests/test_litellm/interactions/test_google_interactions_integration.py
+++ b/tests/test_litellm/interactions/test_google_interactions_integration.py
@@ -299,7 +299,6 @@ class TestGoogleInteractionsResponseStructure:
         assert hasattr(response, "outputs")
         assert hasattr(response, "usage")
         assert hasattr(response, "model") or hasattr(response, "agent")
-        assert hasattr(response, "role")
         assert hasattr(response, "created")
         assert hasattr(response, "updated")
 
diff --git a/tests/test_litellm/interactions/test_openapi_compliance.py b/tests/test_litellm/interactions/test_openapi_compliance.py
index aededaaca77..810c6a0ca08 100644
--- a/tests/test_litellm/interactions/test_openapi_compliance.py
+++ b/tests/test_litellm/interactions/test_openapi_compliance.py
@@ -159,13 +159,13 @@ class TestResponseCompliance:
         # schema no longer carries `steps`. Keep this aligned with the live spec.
         schema = spec_dict["components"]["schemas"]["Interaction"]
 
-        # Output fields (readOnly).
+        # Output fields (readOnly). `role` was removed from the `Interaction`
+        # schema by Google; it now lives only on `Turn`.
         output_fields = [
             "id",
             "status",
             "created",
             "updated",
-            "role",
             "steps",
             "usage",
         ]