diff --git a/static/src/app/methods/conversation/state.ts b/static/src/app/methods/conversation/state.ts
index 0a93946b..98d81740 100644
--- a/static/src/app/methods/conversation/state.ts
+++ b/static/src/app/methods/conversation/state.ts
@@ -107,6 +107,7 @@ export const stateMethods = {
     this.imageEntries = [];
     this.imageLoading = false;
     this.conversationHasImages = false;
+    this.conversationHasVideos = false;
     this.toolSetSettingsLoading(false);
     this.toolSetSettings([]);
     this.pendingToolApprovals = [];
diff --git a/static/src/app/methods/resources.ts b/static/src/app/methods/resources.ts
index 66d08903..99ea12da 100644
--- a/static/src/app/methods/resources.ts
+++ b/static/src/app/methods/resources.ts
@@ -189,11 +189,20 @@ export const resourceMethods = {
     } else {
       this.pendingExecutionMode = '';
     }
-    if (status && typeof status.has_images !== 'undefined') {
-      this.conversationHasImages = !!status.has_images;
-    }
-    if (status && typeof status.has_videos !== 'undefined') {
-      this.conversationHasVideos = !!status.has_videos;
+    // has_images/has_videos 遵循与上面模型/运行模式相同的权威规则：
+    // 有打开对话时才从 status 同步；空对话/显式新建路由（/new）上 status 里的值
+    // 是 terminal 残留的旧对话上下文，不能应用——空对话语义上无图片/视频，
+    // 直接置 false，否则会误拦 handleModelSelect 的图片/视频能力检查。
+    if (hasConversation && !onExplicitNewRoute) {
+      if (status && typeof status.has_images !== 'undefined') {
+        this.conversationHasImages = !!status.has_images;
+      }
+      if (status && typeof status.has_videos !== 'undefined') {
+        this.conversationHasVideos = !!status.has_videos;
+      }
+    } else {
+      this.conversationHasImages = false;
+      this.conversationHasVideos = false;
     }
     const compression = status?.conversation?.compression;
     if (compression && typeof compression === 'object') {