diff --git a/src/components/MachineLearning/ObjectList.tsx b/src/components/MachineLearning/ObjectList.tsx
index 599311b16..b3369fd04 100644
--- a/src/components/MachineLearning/ObjectList.tsx
+++ b/src/components/MachineLearning/ObjectList.tsx
@@ -1,17 +1,17 @@
 import { Chip } from 'components/pages/gallery/Collections';
 import React, { useState, useEffect } from 'react';
-import objectService from 'services/machineLearning/objectService';
 import { EnteFile } from 'types/file';
+import mlIDbStorage from 'utils/storage/mlIDbStorage';
 
 export function ObjectLabelList(props: { file: EnteFile }) {
     const [objects, setObjects] = useState<Array<string>>([]);
     useEffect(() => {
         let didCancel = false;
         const main = async () => {
-            const objects = await objectService.getAllSyncedThingsMap();
+            const things = await mlIDbStorage.getAllThingsMap();
             const uniqueObjectNames = [
                 ...new Set(
-                    objects
+                    things
                         .get(props.file.id)
                         .map((object) => object.detection.class)
                 ),
diff --git a/src/services/machineLearning/machineLearningService.ts b/src/services/machineLearning/machineLearningService.ts
index e0b841db1..17624a18d 100644
--- a/src/services/machineLearning/machineLearningService.ts
+++ b/src/services/machineLearning/machineLearningService.ts
@@ -28,7 +28,7 @@ import { CustomError, parseServerError } from 'utils/error';
 import { MAX_ML_SYNC_ERROR_COUNT } from 'constants/machineLearning/config';
 import FaceService from './faceService';
 import PeopleService from './peopleService';
-import objectService from './objectService';
+import ObjectService from './objectService';
 class MachineLearningService {
     private initialized = false;
     // private faceDetectionService: FaceDetectionService;
@@ -406,7 +406,7 @@ class MachineLearningService {
             await FaceService.syncFileFaceEmbeddings(syncContext, fileContext);
         }
 
-        await objectService.syncFileObjectDetections(syncContext, fileContext);
+        await ObjectService.syncFileObjectDetections(syncContext, fileContext);
 
         fileContext.tfImage && fileContext.tfImage.dispose();
         fileContext.imageBitmap && fileContext.imageBitmap.close();
@@ -507,6 +507,8 @@ class MachineLearningService {
         // await this.init();
         await PeopleService.syncPeopleIndex(syncContext);
 
+        await ObjectService.syncThingClassesIndex(syncContext);
+
         await this.persistMLLibraryData(syncContext);
     }
 
diff --git a/src/services/machineLearning/objectService.ts b/src/services/machineLearning/objectService.ts
index 693411f22..c4a1bd7d4 100644
--- a/src/services/machineLearning/objectService.ts
+++ b/src/services/machineLearning/objectService.ts
@@ -25,12 +25,7 @@ class ObjectService {
             ) &&
             oldMlFile?.imageSource === syncContext.config.imageSource
         ) {
-            newMlFile.things = oldMlFile?.things?.map((existingObject) => ({
-                id: existingObject.id,
-                fileID: existingObject.fileID,
-                detection: existingObject.detection,
-            }));
-
+            newMlFile.things = oldMlFile?.things;
             newMlFile.imageSource = oldMlFile.imageSource;
             newMlFile.imageDimensions = oldMlFile.imageDimensions;
             newMlFile.objectDetectionMethod = oldMlFile.objectDetectionMethod;
@@ -54,9 +49,10 @@ class ObjectService {
                 detection,
             } as DetectedObject;
         });
-        newMlFile.things = detectedObjects?.map((detectedObjects) => ({
-            ...detectedObjects,
-            id: getObjectId(detectedObjects, newMlFile.imageDimensions),
+        newMlFile.things = detectedObjects?.map((detectedObject) => ({
+            ...detectedObject,
+            id: getObjectId(detectedObject, newMlFile.imageDimensions),
+            className: detectedObject.detection.class,
         }));
         // ?.filter((f) =>
         //     f.box.width > syncContext.config.faceDetection.minFaceSize
@@ -64,12 +60,19 @@ class ObjectService {
         console.log('[MLService] Detected Objects: ', newMlFile.things?.length);
     }
 
-    public async getAllSyncedThingsMap() {
-        return await mlIDbStorage.getAllThingsMap();
+    async getAllSyncedThingsMap(syncContext: MLSyncContext) {
+        if (syncContext.allSyncedThingsMap) {
+            return syncContext.allSyncedThingsMap;
+        }
+
+        syncContext.allSyncedThingsMap = await mlIDbStorage.getAllThingsMap();
+        return syncContext.allSyncedThingsMap;
     }
 
-    public async getThingClasses(): Promise<ThingClass[]> {
-        const allObjectsMap = await this.getAllSyncedThingsMap();
+    public async clusterThingClasses(
+        syncContext: MLSyncContext
+    ): Promise<ThingClass[]> {
+        const allObjectsMap = await this.getAllSyncedThingsMap(syncContext);
         const allObjects = getAllThingsFromMap(allObjectsMap);
         const objectClusters = new Map<string, number[]>();
         allObjects.map((object) => {
@@ -85,6 +88,40 @@ class ObjectService {
             files,
         }));
     }
+
+    async syncThingClassesIndex(syncContext: MLSyncContext) {
+        const filesVersion = await mlIDbStorage.getIndexVersion('files');
+        console.log(
+            'thingClasses',
+            await mlIDbStorage.getIndexVersion('thingClasses')
+        );
+        if (
+            filesVersion <= (await mlIDbStorage.getIndexVersion('thingClasses'))
+        ) {
+            console.log(
+                '[MLService] Skipping people index as already synced to latest version'
+            );
+            return;
+        }
+
+        const thingClasses = await this.clusterThingClasses(syncContext);
+
+        if (!thingClasses || thingClasses.length < 1) {
+            return;
+        }
+
+        await mlIDbStorage.clearAllThingClasses();
+
+        for (const thingClass of thingClasses) {
+            await mlIDbStorage.putThingClass(thingClass);
+        }
+
+        await mlIDbStorage.setIndexVersion('thingClasses', filesVersion);
+    }
+
+    async getAllThingClasses() {
+        return await mlIDbStorage.getAllThingClasses();
+    }
 }
 
 export default new ObjectService();
diff --git a/src/services/searchService.ts b/src/services/searchService.ts
index 768362222..d08c26076 100644
--- a/src/services/searchService.ts
+++ b/src/services/searchService.ts
@@ -174,7 +174,7 @@ export function searchFiles(searchPhrase: string, files: EnteFile[]) {
 }
 
 export async function searchThing(searchPhrase: string) {
-    const thingClasses = await ObjectService.getThingClasses();
+    const thingClasses = await ObjectService.getAllThingClasses();
     return thingClasses
         .filter((thingClass) =>
             thingClass.className.toLocaleLowerCase().includes(searchPhrase)
diff --git a/src/types/machineLearning/index.ts b/src/types/machineLearning/index.ts
index 3348cbe54..f5505f9ae 100644
--- a/src/types/machineLearning/index.ts
+++ b/src/types/machineLearning/index.ts
@@ -194,6 +194,7 @@ export interface DetectedObject {
 
 export interface Thing extends DetectedObject {
     id: string;
+    className: string;
 }
 
 export interface ThingClass {
@@ -296,6 +297,7 @@ export interface MLSyncContext {
     nSyncedFiles: number;
     nSyncedFaces: number;
     allSyncedFacesMap?: Map<number, Array<Face>>;
+    allSyncedThingsMap?: Map<number, Array<Thing>>;
     tsne?: any;
 
     error?: Error;
diff --git a/src/utils/storage/mlIDbStorage.ts b/src/utils/storage/mlIDbStorage.ts
index 641b7cd43..f01b9c4f2 100644
--- a/src/utils/storage/mlIDbStorage.ts
+++ b/src/utils/storage/mlIDbStorage.ts
@@ -19,6 +19,7 @@ import {
     MLLibraryData,
     Person,
     Thing,
+    ThingClass,
 } from 'types/machineLearning';
 import { IndexStatus } from 'types/machineLearning/ui';
 import { runningInBrowser } from 'utils/common';
@@ -39,6 +40,10 @@ interface MLDb extends DBSchema {
         key: number;
         value: Person;
     };
+    thingClasses: {
+        key: number;
+        value: ThingClass;
+    };
     versions: {
         key: string;
         value: number;
@@ -98,6 +103,10 @@ class MLIDbStorage {
                         keyPath: 'id',
                     });
 
+                    db.createObjectStore('thingClasses', {
+                        keyPath: 'id',
+                    });
+
                     db.createObjectStore('versions');
 
                     db.createObjectStore('library');
@@ -321,6 +330,20 @@ class MLIDbStorage {
         return db.clear('people');
     }
 
+    public async getAllThingClasses() {
+        const db = await this.db;
+        return db.getAll('thingClasses');
+    }
+    public async putThingClass(thingClass: ThingClass) {
+        const db = await this.db;
+        return db.put('thingClasses', thingClass);
+    }
+
+    public async clearAllThingClasses() {
+        const db = await this.db;
+        return db.clear('thingClasses');
+    }
+
     public async getIndexVersion(index: string) {
         const db = await this.db;
         return db.get('versions', index);