diff --git a/src/app/api/generate/providers/__tests__/popiserver.test.ts b/src/app/api/generate/providers/__tests__/popiserver.test.ts
index dac6acd9..b5b812aa 100644
--- a/src/app/api/generate/providers/__tests__/popiserver.test.ts
+++ b/src/app/api/generate/providers/__tests__/popiserver.test.ts
@@ -669,6 +669,8 @@ describe("popiserver generation provider", () => {
               resultList: [
                 {
                   images: ["https://example.com/result.png"],
+                  originImages: ["https://example.com/origin.png"],
+                  thumbs: ["https://example.com/result_thumb.webp"],
                 },
               ],
             },
@@ -687,7 +689,8 @@ describe("popiserver generation provider", () => {
     if (result.status === "completed") {
       expect(result.output.outputs?.[0]).toMatchObject({
         type: "image",
-        url: "https://example.com/result.png",
+        url: "https://example.com/origin.png",
+        previewImg: "https://example.com/result_thumb.webp",
       });
     }
   });
diff --git a/src/app/api/generate/providers/popiserver.ts b/src/app/api/generate/providers/popiserver.ts
index e8505626..d88d6919 100644
--- a/src/app/api/generate/providers/popiserver.ts
+++ b/src/app/api/generate/providers/popiserver.ts
@@ -64,9 +64,11 @@ type PopiMediaUploadData =
 
 type PopiTaskResult = {
   images?: string[] | null;
+  thumbs?: string[] | null;
   video?: string | null;
   voice?: string | null;
   cover?: string | null;
+  coverThumb?: string | null;
   originImages?: string[] | null;
 };
 
@@ -652,9 +654,10 @@ export async function submitPopiTask(
 function extractOutputFromTask(task: PopiTask, mediaType: string): GenerationOutput {
   const firstResult = Array.isArray(task.resultList) ? task.resultList[0] : null;
   if (mediaType === "video") {
-    const url = firstResult?.video || firstResult?.cover || firstString(task.images || []) || null;
+    const url = firstResult?.video || null;
+    const videoCover = firstResult?.cover || firstResult?.coverThumb || null;
     return url
-      ? { success: true, outputs: [{ type: "video", data: "", url }] }
+      ? { success: true, outputs: [{ type: "video", data: "", url, videoCover: videoCover || undefined }] }
       : { success: false, error: "PopiServer video task completed without output" };
   }
   if (mediaType === "audio") {
@@ -665,20 +668,17 @@ function extractOutputFromTask(task: PopiTask, mediaType: string): GenerationOut
   }
   const images: { image: string; previewImg?: string }[] = [];
   task.resultList?.forEach((res) => {
-    if (Array.isArray(res?.originImages) && res.originImages.length > 0) {
-      images.push(
-        ...res.originImages
-          .filter((item): item is string => typeof item === "string" && item.length > 0)
-          .map((item, index) => ({
-            image: item,
-            previewImg: res.images?.[index],
-          })),
-      );
-      return;
-    }
-
-    collectStrings(res?.images ?? []).forEach((image) => {
-      images.push({ image });
+    const originImages = collectStrings(res?.originImages ?? []);
+    const resultImages = collectStrings(res?.images ?? []);
+    const thumbs = collectStrings(res?.thumbs ?? []);
+    const sourceImages = originImages.length > 0 ? originImages : resultImages;
+
+    sourceImages.forEach((image, index) => {
+      const resultImage = resultImages[index];
+      const previewImg =
+        thumbs[index] ||
+        (originImages.length > 0 && resultImage && resultImage !== image ? resultImage : undefined);
+      images.push({ image, previewImg });
     });
   });
   // task.images is the original input/reference image list in Popiserver task
diff --git a/src/app/api/generate/route.ts b/src/app/api/generate/route.ts
index 5996a7a2..3eda2829 100644
--- a/src/app/api/generate/route.ts
+++ b/src/app/api/generate/route.ts
@@ -169,6 +169,7 @@ export async function buildMediaResponse(
     return NextResponse.json<GenerateResponse>({
       success: true,
       videoUrl,
+      videoCover: output.videoCover,
       contentType: "video",
     });
   }
diff --git a/src/app/api/generate/task/poll/__tests__/route.test.ts b/src/app/api/generate/task/poll/__tests__/route.test.ts
new file mode 100644
index 00000000..b06a964f
--- /dev/null
+++ b/src/app/api/generate/task/poll/__tests__/route.test.ts
@@ -0,0 +1,59 @@
+import { describe, expect, it, vi, beforeEach } from "vitest";
+import { NextRequest } from "next/server";
+import { GET } from "../route";
+import { checkPopiTaskOnce } from "@/app/api/generate/providers/popiserver";
+
+vi.mock("@/app/api/_auth", () => ({
+  requireLogin: vi.fn(() => ({ token: "login-token" })),
+}));
+
+vi.mock("@/app/api/generate/providers/popiserver", () => ({
+  checkPopiTaskOnce: vi.fn(),
+}));
+
+describe("GET /api/generate/task/poll", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("returns image task results only in the images array with thumbnails", async () => {
+    vi.mocked(checkPopiTaskOnce).mockResolvedValue({
+      status: "completed",
+      output: {
+        success: true,
+        outputs: [
+          {
+            type: "image",
+            data: "",
+            url: "https://statictest.popi.art/media/image/2026/0625/8320.png",
+            previewImg: "https://statictest.popi.art/media/image/2026/0625/8320_thumb.webp",
+          },
+        ],
+      },
+    });
+
+    const request = new NextRequest(
+      "http://localhost:3000/api/generate/task/poll?taskId=3020&mediaType=image"
+    );
+
+    const response = await GET(request);
+    const body = await response.json();
+
+    expect(response.status).toBe(200);
+    expect(checkPopiTaskOnce).toHaveBeenCalledWith(request, "login-token", "3020", "image");
+    expect(body).toEqual({
+      status: "completed",
+      result: {
+        success: true,
+        contentType: "image",
+        images: [
+          {
+            url: "https://statictest.popi.art/media/image/2026/0625/8320.png",
+            previewImg: "https://statictest.popi.art/media/image/2026/0625/8320_thumb.webp",
+          },
+        ],
+      },
+    });
+    expect(body.result.image).toBeUndefined();
+  });
+});
diff --git a/src/app/api/generate/task/poll/route.ts b/src/app/api/generate/task/poll/route.ts
index a2f85a17..daf478cc 100644
--- a/src/app/api/generate/task/poll/route.ts
+++ b/src/app/api/generate/task/poll/route.ts
@@ -15,6 +15,22 @@ async function buildResultResponse(
   output: GenerationOutputItem,
   outputs?: GenerationOutputItem[]
 ): Promise<GenerateResponse> {
+  if (output.type === "image") {
+    const images = (outputs && outputs.length > 0 ? outputs : [output])
+      .filter((item) => item.type === "image")
+      .map((item) => ({
+        url: item.data || item.url || "",
+        previewImg: item.previewImg,
+      }))
+      .filter((item) => item.url.length > 0);
+
+    return {
+      success: true,
+      images,
+      contentType: "image",
+    };
+  }
+
   const response = await buildMediaResponse(request, token, output, outputs);
   return (await response.json()) as GenerateResponse;
 }
diff --git a/src/components/GlobalImageHistory.tsx b/src/components/GlobalImageHistory.tsx
index cb70e449..2d6f85d6 100644
--- a/src/components/GlobalImageHistory.tsx
+++ b/src/components/GlobalImageHistory.tsx
@@ -19,6 +19,7 @@ type WorkflowGenerationHistoryItem = {
   historyIndex: number;
   mediaType: "image" | "video";
   mediaUrl?: string;
+  coverUrl?: string;
   timestamp: number;
   prompt: string;
   model: string;
@@ -79,6 +80,7 @@ export function collectWorkflowGenerationHistory(nodes: WorkflowNode[]): Workflo
           historyIndex,
           mediaType: "video",
           mediaUrl: item.video,
+          coverUrl: item.videoCover,
           timestamp: item.timestamp,
           prompt: item.prompt,
           model: item.model,
@@ -109,6 +111,17 @@ function MediaThumb({
     );
   }
 
+  if (item.mediaType === "video" && item.coverUrl) {
+    return (
+      <img
+        src={item.coverUrl}
+        alt=""
+        className={className}
+        draggable={false}
+      />
+    );
+  }
+
   return item.mediaType === "video" ? (
     <video
       src={src}
@@ -359,6 +372,7 @@ export function GlobalImageHistory({
 
       const payload = JSON.stringify({
         [item.mediaType]: mediaSrc,
+        ...(item.mediaType === "video" && item.coverUrl ? { cover: item.coverUrl } : {}),
         prompt: item.prompt,
         timestamp: item.timestamp,
       });
diff --git a/src/components/MyCreationPickerModal.tsx b/src/components/MyCreationPickerModal.tsx
index 434d70fa..231df4be 100644
--- a/src/components/MyCreationPickerModal.tsx
+++ b/src/components/MyCreationPickerModal.tsx
@@ -42,6 +42,7 @@ interface HistoryItem {
     video?: string | null;
     voice?: string | null;
     cover?: string | null;
+    coverThumb?: string | null;
   }[] | null;
   width?: number;
   height?: number;
@@ -168,7 +169,7 @@ function getHistoryMediaUrl(item: HistoryItem, kind: HistoryTabKey): string | nu
   if (mediaKind === "image") {
     return firstString(result?.images || undefined) || firstString(result?.originImages || undefined) || firstString(item.images) || null;
   }
-  if (mediaKind === "video") return result?.video || item.video || result?.cover || item.cover || null;
+  if (mediaKind === "video") return result?.video || item.video || null;
   return result?.voice || item.voice || item.audio || firstString(item.audios) || null;
 }
 
@@ -178,7 +179,7 @@ function getHistoryPreviewUrl(item: HistoryItem, kind: HistoryTabKey): string |
   if (mediaKind === "image") {
     return firstString(result?.thumbs || undefined) || firstString(item.thumbs) || firstString(result?.images || undefined) || firstString(item.images) || null;
   }
-  if (mediaKind === "video") return result?.cover || item.coverThumb || item.cover || result?.video || item.video || null;
+  if (mediaKind === "video") return result?.coverThumb || result?.cover || item.coverThumb || item.cover || result?.video || item.video || null;
   return null;
 }
 
diff --git a/src/components/WorkflowCanvas.tsx b/src/components/WorkflowCanvas.tsx
index 9f08ced3..37c7ef93 100644
--- a/src/components/WorkflowCanvas.tsx
+++ b/src/components/WorkflowCanvas.tsx
@@ -2783,7 +2783,7 @@ export function WorkflowCanvas() {
       const historyVideoData = event.dataTransfer.getData("application/history-video");
       if (historyVideoData) {
         try {
-          const { video } = JSON.parse(historyVideoData) as { video?: string };
+          const { video, cover } = JSON.parse(historyVideoData) as { video?: string; cover?: string };
           if (!video) return;
           const position = screenToFlowPosition({
             x: event.clientX,
@@ -2794,6 +2794,7 @@ export function WorkflowCanvas() {
               kind: "video",
               url: video,
               filename: `history-${Date.now()}.mp4`,
+              previewUrl: cover || null,
             },
             position,
             addNode,
diff --git a/src/components/nodes/GenerateVideoNode.tsx b/src/components/nodes/GenerateVideoNode.tsx
index 69b04078..40dc9ade 100644
--- a/src/components/nodes/GenerateVideoNode.tsx
+++ b/src/components/nodes/GenerateVideoNode.tsx
@@ -129,6 +129,7 @@ export function GenerateVideoNodeView({ id, data, selected }: GenerateVideoNodeV
   const nodeData = data;
   const { t } = useI18n();
   const updateNodeData = useWorkflowStore((state) => state.updateNodeData);
+  const isNodeHovered = useWorkflowStore((state) => state.hoveredNodeId === id);
   const updateVideoPreference = useGenerationPreferenceStore((state) => state.updateVideoPreference);
   const popiserverVideoModels = useModelStore((state) => state.byKind.video);
   const [isBrowseDialogOpen, setIsBrowseDialogOpen] = useState(false);
@@ -136,14 +137,28 @@ export function GenerateVideoNodeView({ id, data, selected }: GenerateVideoNodeV
   const [isPreviewOpen, setIsPreviewOpen] = useState(false);
   const [isSaveToAssetLibraryOpen, setIsSaveToAssetLibraryOpen] = useState(false);
   const [videoRetryNonce, setVideoRetryNonce] = useState(0);
-
-  const videoBlobUrl = useVideoBlobUrl(nodeData.outputVideo ?? null);
+  const [hasRequestedVideoPlayback, setHasRequestedVideoPlayback] = useState(false);
+  const [isVideoReady, setIsVideoReady] = useState(false);
+
+  const currentVideoHistoryItem = nodeData.videoHistory?.[nodeData.selectedVideoHistoryIndex || 0];
+  const previewVideoPoster = (nodeData as GenerateVideoNodeData & { previewVideoPoster?: string }).previewVideoPoster;
+  const videoPoster = nodeData.outputVideoCover || currentVideoHistoryItem?.videoCover || previewVideoPoster;
+  const shouldRequestVideoPlayback = Boolean(nodeData.outputVideo && (!videoPoster || selected || isNodeHovered || hasRequestedVideoPlayback));
+  const videoBlobUrl = useVideoBlobUrl(shouldRequestVideoPlayback ? nodeData.outputVideo ?? null : null);
   const videoAutoplayRef = useVideoAutoplay(id, selected);
   usePreventVideoFullscreen(videoAutoplayRef);
 
   useEffect(() => {
     setVideoRetryNonce(0);
-  }, [videoBlobUrl]);
+    setHasRequestedVideoPlayback(false);
+    setIsVideoReady(false);
+  }, [nodeData.outputVideo]);
+
+  useEffect(() => {
+    if (nodeData.outputVideo && (selected || isNodeHovered || !videoPoster)) {
+      setHasRequestedVideoPlayback(true);
+    }
+  }, [isNodeHovered, nodeData.outputVideo, videoPoster, selected]);
 
   // Inline parameters infrastructure
   const { inlineParametersEnabled } = useInlineParameters();
@@ -269,6 +284,7 @@ export function GenerateVideoNodeView({ id, data, selected }: GenerateVideoNodeV
     if (history.length === 0) {
       updateNodeData(id, {
         outputVideo: null,
+        outputVideoCover: undefined,
         outputVideoRef: undefined,
         outputVideoRemoteUrl: undefined,
         outputVideoRemoteExpiresAt: undefined,
@@ -286,6 +302,7 @@ export function GenerateVideoNodeView({ id, data, selected }: GenerateVideoNodeV
     if (nextHistory.length === 0) {
       updateNodeData(id, {
         outputVideo: null,
+        outputVideoCover: undefined,
         outputVideoRef: undefined,
         outputVideoRemoteUrl: undefined,
         outputVideoRemoteExpiresAt: undefined,
@@ -306,6 +323,7 @@ export function GenerateVideoNodeView({ id, data, selected }: GenerateVideoNodeV
 
     updateNodeData(id, {
       outputVideo: nextVideo,
+      outputVideoCover: nextItem.videoCover,
       outputVideoRef: undefined,
       outputVideoRemoteUrl: nextVideo && /^https?:\/\//i.test(nextVideo) ? nextVideo : undefined,
       outputVideoRemoteExpiresAt: undefined,
@@ -333,6 +351,7 @@ export function GenerateVideoNodeView({ id, data, selected }: GenerateVideoNodeV
     if (video) {
       updateNodeData(id, {
         outputVideo: video,
+        outputVideoCover: videoItem.videoCover,
         selectedVideoHistoryIndex: newIndex,
         status: "idle",
         error: null,
@@ -355,6 +374,7 @@ export function GenerateVideoNodeView({ id, data, selected }: GenerateVideoNodeV
     if (video) {
       updateNodeData(id, {
         outputVideo: video,
+        outputVideoCover: videoItem.videoCover,
         selectedVideoHistoryIndex: newIndex,
         status: "idle",
         error: null,
@@ -429,6 +449,7 @@ export function GenerateVideoNodeView({ id, data, selected }: GenerateVideoNodeV
   }, [nodeData.outputVideoStorageStatus]);
 
   const hasCarouselVideos = (nodeData.videoHistory || []).length > 1;
+  const shouldRenderVideoElement = Boolean(nodeData.outputVideo && (!videoPoster || hasRequestedVideoPlayback));
 
   // Track previous status to detect error transitions
   const prevStatusRef = useRef(nodeData.status);
@@ -603,30 +624,48 @@ export function GenerateVideoNodeView({ id, data, selected }: GenerateVideoNodeV
         {/* Preview area */}
         {nodeData.outputVideo ? (
           <>
-            <video
-              ref={videoAutoplayRef}
-              key={`${nodeData.videoHistory?.[nodeData.selectedVideoHistoryIndex || 0]?.id ?? nodeData.outputVideo}-${videoRetryNonce}`}
-              src={videoBlobUrl ?? undefined}
-              controls
-              controlsList="nofullscreen noremoteplayback"
-              disablePictureInPicture
-              loop
-              muted
-              className="w-full h-full object-contain"
-              playsInline
-              onDoubleClickCapture={preventVideoDoubleClick}
-              onDoubleClick={preventVideoDoubleClick}
-              onLoadedMetadata={() => setVideoRetryNonce(0)}
-              onError={() => {
-                const retryIndex = videoRetryNonce;
-                const retryDelay = VIDEO_LOAD_RETRY_DELAYS_MS[retryIndex];
-                if (retryDelay !== undefined && videoBlobUrl) {
-                  window.setTimeout(() => {
-                    setVideoRetryNonce((current) => current === retryIndex ? current + 1 : current);
-                  }, retryDelay);
-                }
-              }}
-            />
+            {videoPoster && (
+              <img
+                src={videoPoster}
+                alt=""
+                className={`absolute inset-0 h-full w-full object-contain bg-black transition-opacity duration-150 ${
+                  isVideoReady ? "opacity-0" : "opacity-100"
+                }`}
+                draggable={false}
+              />
+            )}
+            {shouldRenderVideoElement && (
+              <video
+                ref={videoAutoplayRef}
+                key={`${currentVideoHistoryItem?.id ?? nodeData.outputVideo}-${videoRetryNonce}`}
+                src={videoBlobUrl ?? undefined}
+                poster={videoPoster}
+                controls
+                controlsList="nofullscreen noremoteplayback"
+                disablePictureInPicture
+                loop
+                muted
+                className={`${videoPoster ? "absolute inset-0 " : ""}w-full h-full object-contain`}
+                playsInline
+                preload={videoPoster ? "auto" : undefined}
+                onDoubleClickCapture={preventVideoDoubleClick}
+                onDoubleClick={preventVideoDoubleClick}
+                onLoadedMetadata={() => {
+                  setVideoRetryNonce(0);
+                  setIsVideoReady(true);
+                }}
+                onError={() => {
+                  setIsVideoReady(false);
+                  const retryIndex = videoRetryNonce;
+                  const retryDelay = VIDEO_LOAD_RETRY_DELAYS_MS[retryIndex];
+                  if (retryDelay !== undefined && videoBlobUrl) {
+                    window.setTimeout(() => {
+                      setVideoRetryNonce((current) => current === retryIndex ? current + 1 : current);
+                    }, retryDelay);
+                  }
+                }}
+              />
+            )}
             {storageBadge && (
               <div
                 className={`absolute top-7 right-1 px-1.5 py-0.5 rounded text-[9px] font-medium pointer-events-auto z-10 ${storageBadge.className}`}
diff --git a/src/components/nodes/SmartVideoNode.tsx b/src/components/nodes/SmartVideoNode.tsx
index 9c7a0807..cd6e1882 100644
--- a/src/components/nodes/SmartVideoNode.tsx
+++ b/src/components/nodes/SmartVideoNode.tsx
@@ -58,7 +58,7 @@ function SmartVideoUploadToolbar({
   const showSelectedActions = Boolean(selected && selectedNodeCount === 1);
 
   const buildUploadedVideoPatch = useCallback(
-    (videoUrl: string): Partial<SmartVideoNodeData> => {
+    (videoUrl: string, videoCover?: string): Partial<SmartVideoNodeData> => {
       if (!addToGenerationHistory) return {};
 
       const currentNode = useWorkflowStore.getState().getNodeById(id);
@@ -66,10 +66,12 @@ function SmartVideoUploadToolbar({
       const timestamp = Date.now();
       return {
         outputVideo: videoUrl,
+        outputVideoCover: videoCover,
         videoHistory: [
           {
             id: `${timestamp}`,
             video: videoUrl,
+            videoCover,
             timestamp,
             prompt: currentData.inputPrompt || "",
             model: currentData.selectedModel?.modelId || "",
@@ -85,19 +87,26 @@ function SmartVideoUploadToolbar({
   );
 
   const applyVideo = useCallback(
-    (videoSrc: string, filename: string, format: string, duration: number | null, dimensions: { width: number; height: number } | null) => {
+    (
+      videoSrc: string,
+      filename: string,
+      format: string,
+      duration: number | null,
+      dimensions: { width: number; height: number } | null,
+      videoCover?: string
+    ) => {
       updateNodeData(id, {
         video: videoSrc,
         videoRef: undefined,
         assetId: undefined,
-        previewVideoPoster: undefined,
+        previewVideoPoster: videoCover,
         assetDetailLoading: false,
         assetDetailError: null,
         filename,
         format,
         duration,
         dimensions,
-        ...buildUploadedVideoPatch(videoSrc),
+        ...buildUploadedVideoPatch(videoSrc, videoCover),
       });
     },
     [buildUploadedVideoPatch, id, updateNodeData]
@@ -137,7 +146,8 @@ function SmartVideoUploadToolbar({
               uploaded.filename,
               uploaded.contentType,
               metadata.duration,
-              metadata.dimensions
+              metadata.dimensions,
+              uploaded.previewUrl
             );
           })
           .catch((error) => {
@@ -195,13 +205,14 @@ function SmartVideoUploadToolbar({
         videoRef: undefined,
         assetId: resolved.assetId,
         previewVideoPoster: resolved.previewPosterUrl || undefined,
+        outputVideoCover: addToGenerationHistory ? resolved.previewPosterUrl || undefined : undefined,
         assetDetailLoading: false,
         assetDetailError: null,
         filename: resolved.filename,
         format: "video/asset",
         duration: resolved.duration || metadata.duration,
         dimensions: resolved.dimensions || metadata.dimensions,
-        ...buildUploadedVideoPatch(videoUrl),
+        ...buildUploadedVideoPatch(videoUrl, resolved.previewPosterUrl || undefined),
       });
     };
 
diff --git a/src/lib/providers/types.ts b/src/lib/providers/types.ts
index 617ec8eb..17c34386 100644
--- a/src/lib/providers/types.ts
+++ b/src/lib/providers/types.ts
@@ -121,6 +121,8 @@ export interface GenerationOutputItem {
     data: string;
     /** Original URL if applicable (e.g., from provider CDN) */
     url?: string;
+    /** Cover/poster image for video outputs */
+    videoCover?: string;
 
     previewImg?: string; // 为图片时封面图片
   }
diff --git a/src/store/execution/generateVideoExecutor.ts b/src/store/execution/generateVideoExecutor.ts
index 41aebca7..5f3dfa92 100644
--- a/src/store/execution/generateVideoExecutor.ts
+++ b/src/store/execution/generateVideoExecutor.ts
@@ -274,6 +274,7 @@ export async function executeGenerateVideo(
 
       // Handle video response (video or videoUrl field)
       const videoData = result.video || result.videoUrl;
+      const videoCover = result.videoCover;
       const imageData = getGeneratedImageUrl(result.image);
       if (result.success && (videoData || imageData)) {
         const outputContent = videoData || imageData;
@@ -286,6 +287,7 @@ export async function executeGenerateVideo(
         const newHistoryItem = {
           id: videoId,
           video: outputContent,
+          videoCover,
           timestamp,
           prompt: text || "",
           model: usedModelId,
@@ -301,6 +303,7 @@ export async function executeGenerateVideo(
 
         updateNodeData(node.id, {
           outputVideo: outputContent,
+          outputVideoCover: videoCover,
           outputVideoRef: undefined,
           outputVideoRemoteUrl: isRemoteVideo ? outputContent : undefined,
           outputVideoStorageStatus: storageStatus,
diff --git a/src/types/api.ts b/src/types/api.ts
index cc6ca93c..acd5cb77 100644
--- a/src/types/api.ts
+++ b/src/types/api.ts
@@ -33,6 +33,7 @@ export interface GenerateResponse {
   }[];
   video?: string;
   videoUrl?: string; // For large videos, return URL directly
+  videoCover?: string; // Cover/poster image for generated videos
   audio?: string; // Base64 audio data
   audioUrl?: string; // For large audio, return URL directly
   model3dUrl?: string; // For 3D models, return GLB URL directly
diff --git a/src/types/nodes.ts b/src/types/nodes.ts
index d7f37132..cc21c2c6 100644
--- a/src/types/nodes.ts
+++ b/src/types/nodes.ts
@@ -204,6 +204,7 @@ export interface CarouselImageItem {
 export interface CarouselVideoItem {
   id: string;
   video?: string; // Current-session fallback; stripped when externalizing workflow media
+  videoCover?: string;
   timestamp: number;
   prompt: string;
   model: string; // Model ID for video (not ModelType since external providers)
@@ -263,6 +264,7 @@ export interface GenerateVideoNodeData extends BaseNodeData {
   inputImageRefs?: string[]; // External image references for storage optimization
   inputPrompt: string | null;
   outputVideo: string | null; // Video data URL or URL
+  outputVideoCover?: string;
   outputVideoRef?: string; // External video reference for storage optimization
   outputVideoRemoteUrl?: string; // Original provider URL retained for fallback/re-download
   outputVideoRemoteExpiresAt?: string; // Best-effort expiry timestamp for signed provider URLs