diff --git a/src/leapfrogai_api/backend/grpc_client.py b/src/leapfrogai_api/backend/grpc_client.py
index e2f088989..6a3fa2e4b 100644
--- a/src/leapfrogai_api/backend/grpc_client.py
+++ b/src/leapfrogai_api/backend/grpc_client.py
@@ -1,7 +1,6 @@
 """gRPC client for OpenAI models."""
 
 from typing import Iterator, AsyncGenerator, Any, List
-from fastapi import HTTPException, status
 import grpc
 from fastapi.responses import StreamingResponse
 import leapfrogai_sdk as lfai
@@ -25,16 +24,6 @@
 from leapfrogai_api.utils.config import Model
 
 
-def to_string_finish_reason(finish_reason: int) -> str:
-    try:
-        return FinishReason(finish_reason).to_string()
-    except ValueError as e:
-        raise HTTPException(
-            status_code=status.HTTP_400_BAD_REQUEST,
-            detail=str(e),
-        )
-
-
 async def stream_completion(model: Model, request: lfai.CompletionRequest):
     """Stream completion using the specified model."""
     async with grpc.aio.insecure_channel(model.backend) as channel:
@@ -60,7 +49,7 @@ async def completion(model: Model, request: lfai.CompletionRequest):
                 CompletionChoice(
                     index=0,
                     text=response.choices[0].text,
-                    finish_reason=to_string_finish_reason(
+                    finish_reason=FinishReason.to_string(
                         response.choices[0].finish_reason
                     ),
                     logprobs=None,
@@ -119,7 +108,7 @@ async def chat_completion(model: Model, request: lfai.ChatCompletionRequest):
                         ).lower(),
                         content=response.choices[0].chat_item.content,
                     ),
-                    finish_reason=to_string_finish_reason(
+                    finish_reason=FinishReason.to_string(
                         response.choices[0].finish_reason
                     ),
                 )
diff --git a/src/leapfrogai_api/backend/helpers.py b/src/leapfrogai_api/backend/helpers.py
index 2fec1f6eb..d9baddec8 100644
--- a/src/leapfrogai_api/backend/helpers.py
+++ b/src/leapfrogai_api/backend/helpers.py
@@ -11,6 +11,7 @@
     ChatStreamChoice,
     CompletionChoice,
     CompletionResponse,
+    FinishReason,
     Usage,
 )
 
@@ -32,7 +33,9 @@ async def recv_completion(
                         index=0,
                         text=c.choices[0].text,
                         logprobs=None,
-                        finish_reason=c.choices[0].finish_reason,
+                        finish_reason=FinishReason.to_string(
+                            c.choices[0].finish_reason
+                        ),
                     )
                 ],
                 usage=Usage(
@@ -68,7 +71,9 @@ async def recv_chat(
                         delta=ChatDelta(
                             role="assistant", content=c.choices[0].chat_item.content
                         ),
-                        finish_reason=c.choices[0].finish_reason,
+                        finish_reason=FinishReason.to_string(
+                            c.choices[0].finish_reason
+                        ),
                     )
                 ],
                 usage=Usage(