diff --git a/strix/core/execution.py b/strix/core/execution.py
index ff60fee9..5997e3db 100644
--- a/strix/core/execution.py
+++ b/strix/core/execution.py
@@ -184,7 +184,7 @@ def _is_transient_model_error(exc: BaseException) -> bool:
         return True
     code = _model_error_status_code(exc)
     if code is not None:
-        return code >= 400 and code not in (401, 402, 403)
+        return code >= 400 and code not in (401, 402, 403, 404)
     return isinstance(exc, APIError)
 
 
diff --git a/tests/test_execution_transient_retry.py b/tests/test_execution_transient_retry.py
index 6b2fd336..f0276932 100644
--- a/tests/test_execution_transient_retry.py
+++ b/tests/test_execution_transient_retry.py
@@ -84,8 +84,7 @@ def test_client_errors_are_transient() -> None:
         "bad", response=httpx.Response(400, request=_request()), body=None
     )
     assert execution._is_transient_model_error(bad_request) is True
-    assert execution._is_transient_model_error(_status_error(404)) is True
-    for status in (401, 402, 403):
+    for status in (401, 402, 403, 404):
         assert execution._is_transient_model_error(_status_error(status)) is False
     assert execution._is_transient_model_error(ValueError("nope")) is False