diff --git a/airflow/metrics/validators.py b/airflow/metrics/validators.py
index 5b7e74aa2d104..fd43a8adf3bc9 100644
--- a/airflow/metrics/validators.py
+++ b/airflow/metrics/validators.py
@@ -63,7 +63,7 @@ class MetricNameLengthExemptionWarning(Warning):
     r"^ti.finish.(?P<dag_id>.*)\.(?P<task_id>.*)\.(?P<state>.*)$",
     r"^task_removed_from_dag\.(?P<dag_id>.*)$",
     r"^task_restored_to_dag\.(?P<dag_id>.*)$",
-    r"^task_instance_created-(?P<operator_name>.*)$",
+    r"^task_instance_created_(?P<operator_name>.*)$",
     r"^dag_processing\.last_run\.seconds_ago\.(?P<dag_file>.*)$",
     r"^pool\.open_slots\.(?P<pool_name>.*)$",
     r"^pool\.queued_slots\.(?P<pool_name>.*)$",
diff --git a/airflow/models/dagrun.py b/airflow/models/dagrun.py
index 45989be15a07e..538cceede8b18 100644
--- a/airflow/models/dagrun.py
+++ b/airflow/models/dagrun.py
@@ -1187,7 +1187,7 @@ def _create_task_instances(
                 session.bulk_save_objects(tasks)
 
             for task_type, count in created_counts.items():
-                Stats.incr(f"task_instance_created-{task_type}", count, tags=self.stats_tags)
+                Stats.incr(f"task_instance_created_{task_type}", count, tags=self.stats_tags)
                 # Same metric with tagging
                 Stats.incr("task_instance_created", count, tags={**self.stats_tags, "task_type": task_type})
             session.flush()
diff --git a/docs/apache-airflow/administration-and-deployment/logging-monitoring/metrics.rst b/docs/apache-airflow/administration-and-deployment/logging-monitoring/metrics.rst
index 4998fcb71d51e..23223486364c8 100644
--- a/docs/apache-airflow/administration-and-deployment/logging-monitoring/metrics.rst
+++ b/docs/apache-airflow/administration-and-deployment/logging-monitoring/metrics.rst
@@ -164,7 +164,7 @@ Name                                                                   Descripti
 ``task_removed_from_dag.<dag_id>``                                     Number of tasks removed for a given dag (i.e. task no longer exists in DAG)
 ``task_restored_to_dag.<dag_id>``                                      Number of tasks restored for a given dag (i.e. task instance which was
                                                                        previously in REMOVED state in the DB is added to DAG file)
-``task_instance_created-<operator_name>``                              Number of tasks instances created for a given Operator
+``task_instance_created_<operator_name>``                              Number of tasks instances created for a given Operator
 ``triggers.blocked_main_thread``                                       Number of triggers that blocked the main thread (likely due to not being
                                                                        fully asynchronous)
 ``triggers.failed``                                                    Number of triggers that errored before they could fire an event
diff --git a/tests/core/test_otel_logger.py b/tests/core/test_otel_logger.py
index 75f4ebdc802d5..1f04edd1bfe68 100644
--- a/tests/core/test_otel_logger.py
+++ b/tests/core/test_otel_logger.py
@@ -91,7 +91,7 @@ def test_invalid_stat_names_are_caught(self, invalid_stat_combo):
         self.meter.assert_not_called()
 
     def test_old_name_exception_works(self, caplog):
-        name = "task_instance_created-OperatorNameWhichIsSuperLongAndExceedsTheOpenTelemetryCharacterLimit"
+        name = "task_instance_created_OperatorNameWhichIsSuperLongAndExceedsTheOpenTelemetryCharacterLimit"
         assert len(name) > OTEL_NAME_MAX_LENGTH
 
         with pytest.warns(MetricNameLengthExemptionWarning):
diff --git a/tests/models/test_dagrun.py b/tests/models/test_dagrun.py
index ef0ae229efc01..024b9df3a1f32 100644
--- a/tests/models/test_dagrun.py
+++ b/tests/models/test_dagrun.py
@@ -984,7 +984,7 @@ def test_verify_integrity_task_start_and_end_date(Stats_incr, session, run_type,
     assert len(tis) == expected_tis
 
     Stats_incr.assert_any_call(
-        "task_instance_created-EmptyOperator", expected_tis, tags={"dag_id": "test", "run_type": run_type}
+        "task_instance_created_EmptyOperator", expected_tis, tags={"dag_id": "test", "run_type": run_type}
     )
     Stats_incr.assert_any_call(
         "task_instance_created",