diff --git a/src/resources/MachineLearning/ModelDetailedInfo/details/ModelDetailsBuildingStats.ts b/src/resources/MachineLearning/ModelDetailedInfo/details/ModelDetailsBuildingStats.ts
index 41e27281c..1ceef66b0 100644
--- a/src/resources/MachineLearning/ModelDetailedInfo/details/ModelDetailsBuildingStats.ts
+++ b/src/resources/MachineLearning/ModelDetailedInfo/details/ModelDetailsBuildingStats.ts
@@ -26,6 +26,15 @@ export interface ModelDetailsBuildingStats {
     invalidHtmlDocumentCount?: number;
     documentWithoutIdCount?: number;
     documentWithDuplicatedIdCount?: number;
+    documentsWithChunksCount?: number;
+    documentsWithChunksRatio?: number;
+    chunkCount?: number;
+    meanChunkLength?: number;
+    chunksPerDocument?: {
+        min?: number;
+        max?: number;
+        mean?: number;
+    };
     commerceEventCounts?: ModelDetailsCommerceEvents;
     modelDetailedStatsPerSource?: ModelDetailsStatsPerSource[];
 }
diff --git a/src/resources/MachineLearning/ModelDetailedInfo/details/ModelDetailsStatsPerSource.ts b/src/resources/MachineLearning/ModelDetailedInfo/details/ModelDetailsStatsPerSource.ts
index 8c400c4b0..dac788224 100644
--- a/src/resources/MachineLearning/ModelDetailedInfo/details/ModelDetailsStatsPerSource.ts
+++ b/src/resources/MachineLearning/ModelDetailedInfo/details/ModelDetailsStatsPerSource.ts
@@ -4,4 +4,12 @@ export interface ModelDetailsStatsPerSource {
     invalidHtmlDocumentCount: number;
     documentWithoutIdCount: number;
     documentWithDuplicatedIdCount: number;
+    documentsWithChunksCount?: number;
+    documentsWithChunksRatio?: number;
+    chunkCount?: number;
+    chunksPerDocument?: {
+        min?: number;
+        max?: number;
+        mean?: number;
+    };
 }