diff --git a/src/openai/lib/_parsing/_responses.py b/src/openai/lib/_parsing/_responses.py
index 8853a0749f..a7f7550fe4 100644
--- a/src/openai/lib/_parsing/_responses.py
+++ b/src/openai/lib/_parsing/_responses.py
@@ -71,7 +71,11 @@ def parse_response(
                         type_=ParsedResponseOutputText[TextFormatT],
                         value={
                             **item.to_dict(),
-                            "parsed": parse_text(item.text, text_format=text_format),
+                            "parsed": (
+                                None
+                                if output.status == "incomplete"
+                                else parse_text(item.text, text_format=text_format)
+                            ),
                         },
                     )
                 )
diff --git a/tests/lib/responses/test_responses.py b/tests/lib/responses/test_responses.py
index 8e5f16df95..f1737ad67b 100644
--- a/tests/lib/responses/test_responses.py
+++ b/tests/lib/responses/test_responses.py
@@ -4,10 +4,13 @@
 
 import pytest
 from respx import MockRouter
+from pydantic import BaseModel
 from inline_snapshot import snapshot
 
 from openai import OpenAI, AsyncOpenAI
 from openai._utils import assert_signatures_in_sync
+from openai.types.responses import Response
+from openai.lib._parsing._responses import parse_response
 
 from ...conftest import base_url
 from ..snapshots import make_snapshot_request
@@ -41,6 +44,45 @@ def test_output_text(client: OpenAI, respx_mock: MockRouter) -> None:
     )
 
 
+def test_parse_incomplete_message_skips_text_parsing() -> None:
+    class Location(BaseModel):
+        city: str
+
+    response = Response.model_validate(
+        {
+            "id": "resp_123",
+            "object": "response",
+            "created_at": 0,
+            "model": "gpt-4o-mini",
+            "output": [
+                {
+                    "id": "msg_123",
+                    "type": "message",
+                    "status": "incomplete",
+                    "role": "assistant",
+                    "content": [
+                        {
+                            "type": "output_text",
+                            "annotations": [],
+                            "text": '{"city": "San Francisco",',
+                        }
+                    ],
+                }
+            ],
+            "parallel_tool_calls": True,
+            "tool_choice": "auto",
+            "tools": [],
+        }
+    )
+
+    parsed = parse_response(text_format=Location, input_tools=[], response=response)
+
+    assert parsed.output[0].type == "message"
+    assert parsed.output[0].status == "incomplete"
+    assert parsed.output[0].content[0].type == "output_text"
+    assert parsed.output[0].content[0].parsed is None
+
+
 @pytest.mark.parametrize("sync", [True, False], ids=["sync", "async"])
 def test_stream_method_definition_in_sync(sync: bool, client: OpenAI, async_client: AsyncOpenAI) -> None:
     checking_client: OpenAI | AsyncOpenAI = client if sync else async_client