diff --git a/src/anonymizer/engine/detection/detection_workflow.py b/src/anonymizer/engine/detection/detection_workflow.py
index d59246b7..1c762844 100644
--- a/src/anonymizer/engine/detection/detection_workflow.py
+++ b/src/anonymizer/engine/detection/detection_workflow.py
@@ -117,6 +117,7 @@ def detect_and_validate_entities(
             gliner_detection_threshold=gliner_detection_threshold,
             validation_max_entities_per_call=validation_max_entities_per_call,
             validation_excerpt_window_chars=validation_excerpt_window_chars,
+            validation_single_chunk_full_text=validation_single_chunk_full_text,
             entity_labels=entity_labels,
             data_summary=data_summary,
         )
@@ -138,6 +139,7 @@ def _build_detection_spec(
         gliner_detection_threshold: float,
         validation_max_entities_per_call: int = _DEFAULT_VALIDATION_MAX_ENTITIES_PER_CALL,
         validation_excerpt_window_chars: int = _DEFAULT_VALIDATION_EXCERPT_WINDOW_CHARS,
+        validation_single_chunk_full_text: bool = True,
         entity_labels: list[str] | None = None,
         data_summary: str | None = None,
     ) -> tuple[list[ModelConfig], list[ColumnConfigT]]:
@@ -245,6 +247,7 @@ def build_detection_config(
         gliner_detection_threshold: float,
         validation_max_entities_per_call: int = _DEFAULT_VALIDATION_MAX_ENTITIES_PER_CALL,
         validation_excerpt_window_chars: int = _DEFAULT_VALIDATION_EXCERPT_WINDOW_CHARS,
+        validation_single_chunk_full_text: bool = True,
         entity_labels: list[str] | None = None,
         data_summary: str | None = None,
     ) -> DataDesignerConfigBuilder:
@@ -259,6 +262,7 @@ def build_detection_config(
             gliner_detection_threshold=gliner_detection_threshold,
             validation_max_entities_per_call=validation_max_entities_per_call,
             validation_excerpt_window_chars=validation_excerpt_window_chars,
+            validation_single_chunk_full_text=validation_single_chunk_full_text,
             entity_labels=entity_labels,
             data_summary=data_summary,
         )
@@ -278,6 +282,7 @@ def build_detection_builder_for_seed(
         gliner_detection_threshold: float,
         validation_max_entities_per_call: int = _DEFAULT_VALIDATION_MAX_ENTITIES_PER_CALL,
         validation_excerpt_window_chars: int = _DEFAULT_VALIDATION_EXCERPT_WINDOW_CHARS,
+        validation_single_chunk_full_text: bool = True,
         entity_labels: list[str] | None = None,
         data_summary: str | None = None,
         job_index: int = 0,
@@ -298,6 +303,7 @@ def build_detection_builder_for_seed(
             gliner_detection_threshold=gliner_detection_threshold,
             validation_max_entities_per_call=validation_max_entities_per_call,
             validation_excerpt_window_chars=validation_excerpt_window_chars,
+            validation_single_chunk_full_text=validation_single_chunk_full_text,
             entity_labels=entity_labels,
             data_summary=data_summary,
         )
@@ -362,6 +368,7 @@ def run(
         gliner_detection_threshold: float,
         validation_max_entities_per_call: int = _DEFAULT_VALIDATION_MAX_ENTITIES_PER_CALL,
         validation_excerpt_window_chars: int = _DEFAULT_VALIDATION_EXCERPT_WINDOW_CHARS,
+        validation_single_chunk_full_text: bool = True,
         entity_labels: list[str] | None = None,
         privacy_goal: PrivacyGoal | None = None,
         data_summary: str | None = None,
@@ -391,6 +398,7 @@ def run(
                 gliner_detection_threshold=gliner_detection_threshold,
                 validation_max_entities_per_call=validation_max_entities_per_call,
                 validation_excerpt_window_chars=validation_excerpt_window_chars,
+                validation_single_chunk_full_text=validation_single_chunk_full_text,
                 entity_labels=entity_labels,
                 data_summary=data_summary,
                 preview_num_records=preview_num_records,
diff --git a/tests/engine/test_detection_workflow.py b/tests/engine/test_detection_workflow.py
index 3f45f1b1..27dfbe8c 100644
--- a/tests/engine/test_detection_workflow.py
+++ b/tests/engine/test_detection_workflow.py
@@ -543,6 +543,92 @@ def test_validator_pool_kwargs_thread_through_to_generator_params(
     assert params.excerpt_window_chars == 42
 
 
+def test_validation_single_chunk_full_text_threads_to_generator_params(
+    stub_detector_model_configs: list[ModelConfig],
+    stub_detection_model_selection: DetectionModelSelection,
+) -> None:
+    adapter = Mock()
+    adapter.run_workflow.return_value = WorkflowRunResult(
+        dataframe=pd.DataFrame(
+            {
+                COL_TEXT: ["Alice"],
+                COL_DETECTED_ENTITIES: [{"entities": [{"value": "Alice", "label": "first_name"}]}],
+            }
+        ),
+        failed_records=[],
+    )
+    workflow = EntityDetectionWorkflow(adapter=adapter)
+    workflow.run(
+        pd.DataFrame({COL_TEXT: ["Alice"]}),
+        model_configs=stub_detector_model_configs,
+        selected_models=stub_detection_model_selection,
+        gliner_detection_threshold=0.5,
+        validation_single_chunk_full_text=False,
+        tag_latent_entities=False,
+    )
+    columns = adapter.run_workflow.call_args.kwargs["columns"]
+    params = _find_column(columns, COL_VALIDATION_DECISIONS).generator_params
+    assert params.single_chunk_full_text is False
+
+
+def test_build_detection_config_threads_validation_single_chunk_full_text(
+    tmp_path,
+    stub_detector_model_configs: list[ModelConfig],
+    stub_detection_model_selection: DetectionModelSelection,
+) -> None:
+    adapter = Mock()
+    workflow = EntityDetectionWorkflow(adapter=adapter)
+    workflow.build_detection_config(
+        pd.DataFrame({COL_TEXT: ["Alice"]}),
+        seed_path=tmp_path / "seed.parquet",
+        model_configs=stub_detector_model_configs,
+        selected_models=stub_detection_model_selection,
+        gliner_detection_threshold=0.5,
+        validation_single_chunk_full_text=False,
+    )
+    columns = adapter.build_config.call_args.kwargs["columns"]
+    params = _find_column(columns, COL_VALIDATION_DECISIONS).generator_params
+    assert params.single_chunk_full_text is False
+
+
+def test_build_detection_builder_for_seed_threads_validation_single_chunk_full_text(
+    tmp_path,
+    stub_detector_model_configs: list[ModelConfig],
+    stub_detection_model_selection: DetectionModelSelection,
+) -> None:
+    adapter = Mock()
+    workflow = EntityDetectionWorkflow(adapter=adapter)
+    workflow.build_detection_builder_for_seed(
+        seed_path=tmp_path / "seed.parquet",
+        model_configs=stub_detector_model_configs,
+        selected_models=stub_detection_model_selection,
+        gliner_detection_threshold=0.5,
+        validation_single_chunk_full_text=False,
+    )
+    columns = adapter.build_config_for_seed.call_args.kwargs["columns"]
+    params = _find_column(columns, COL_VALIDATION_DECISIONS).generator_params
+    assert params.single_chunk_full_text is False
+
+
+def test_build_detection_config_uses_default_validation_single_chunk_full_text(
+    tmp_path,
+    stub_detector_model_configs: list[ModelConfig],
+    stub_detection_model_selection: DetectionModelSelection,
+) -> None:
+    adapter = Mock()
+    workflow = EntityDetectionWorkflow(adapter=adapter)
+    workflow.build_detection_config(
+        pd.DataFrame({COL_TEXT: ["Alice"]}),
+        seed_path=tmp_path / "seed.parquet",
+        model_configs=stub_detector_model_configs,
+        selected_models=stub_detection_model_selection,
+        gliner_detection_threshold=0.5,
+    )
+    columns = adapter.build_config.call_args.kwargs["columns"]
+    params = _find_column(columns, COL_VALIDATION_DECISIONS).generator_params
+    assert params.single_chunk_full_text is True
+
+
 def test_pool_size_greater_than_one_emits_warning(
     stub_detector_model_configs: list[ModelConfig],
     stub_detection_model_selection: DetectionModelSelection,