diff --git a/app/Services/Social/TikTokPublisher.php b/app/Services/Social/TikTokPublisher.php
index e2b90893..52209a8b 100644
--- a/app/Services/Social/TikTokPublisher.php
+++ b/app/Services/Social/TikTokPublisher.php
@@ -97,7 +97,14 @@ private function queryCreatorInfo(SocialAccount $account): array
         ];
     }
 
-    private function buildPostInfo(PostPlatform $postPlatform, ?string $content, array $creatorInfo): array
+    /**
+     * Build the post_info payload for a VIDEO post. TikTok's video endpoint
+     * accepts the caption in the `title` field (capped at 2200 chars by the
+     * platform's maxContentLength).
+     *
+     * @return array<string, mixed>
+     */
+    private function buildVideoPostInfo(PostPlatform $postPlatform, ?string $content, array $creatorInfo): array
     {
         $meta = $postPlatform->meta ?? [];
 
@@ -127,13 +134,45 @@ private function buildPostInfo(PostPlatform $postPlatform, ?string $content, arr
         return $postInfo;
     }
 
+    /**
+     * Build the post_info payload for a PHOTO carousel. TikTok's photo endpoint
+     * accepts the caption in the `description` field (cap 4000 UTF-16 runes).
+     * The `title` field is a separate 90-char headline that we don't expose,
+     * so we omit it. Duet/Stitch and is_aigc do not apply to photo posts.
+     *
+     * @return array<string, mixed>
+     */
+    private function buildPhotoPostInfo(PostPlatform $postPlatform, ?string $content, array $creatorInfo): array
+    {
+        $meta = $postPlatform->meta ?? [];
+
+        $privacyLevel = data_get($meta, 'privacy_level')
+            ?: data_get($creatorInfo, 'privacy_level', 'SELF_ONLY');
+
+        $postInfo = [
+            'description' => $content ?? '',
+            'privacy_level' => $privacyLevel,
+            'disable_comment' => ! data_get($meta, 'allow_comments', true),
+        ];
+
+        if (data_get($meta, 'brand_content_toggle', false)) {
+            $postInfo['brand_content_toggle'] = true;
+        }
+
+        if (data_get($meta, 'brand_organic_toggle', false)) {
+            $postInfo['brand_organic_toggle'] = true;
+        }
+
+        return $postInfo;
+    }
+
     private function publishVideo(PostPlatform $postPlatform, $media, ?string $content): array
     {
         $creatorInfo = $this->queryCreatorInfo($postPlatform->socialAccount);
 
         $response = $this->getHttpClient()
             ->post("{$this->baseUrl}/post/publish/video/init/", [
-                'post_info' => $this->buildPostInfo($postPlatform, $content, $creatorInfo),
+                'post_info' => $this->buildVideoPostInfo($postPlatform, $content, $creatorInfo),
                 'source_info' => [
                     'source' => 'PULL_FROM_URL',
                     'video_url' => $media->url,
@@ -186,11 +225,9 @@ private function publishPhotos(PostPlatform $postPlatform, $mediaCollection, ?st
 
         $creatorInfo = $this->queryCreatorInfo($postPlatform->socialAccount);
 
-        $postInfo = $this->buildPostInfo($postPlatform, $content, $creatorInfo);
-        // Photos don't support duet/stitch/is_aigc
-        unset($postInfo['disable_duet'], $postInfo['disable_stitch'], $postInfo['is_aigc']);
+        $postInfo = $this->buildPhotoPostInfo($postPlatform, $content, $creatorInfo);
 
-        // Auto add music is only for photos
+        // Auto add music is only for photos.
         $meta = $postPlatform->meta ?? [];
         if (data_get($meta, 'auto_add_music', false)) {
             $postInfo['auto_add_music'] = true;
diff --git a/tests/Unit/Services/Social/TikTokPublisherTest.php b/tests/Unit/Services/Social/TikTokPublisherTest.php
index 0fb975ec..bf94f68b 100644
--- a/tests/Unit/Services/Social/TikTokPublisherTest.php
+++ b/tests/Unit/Services/Social/TikTokPublisherTest.php
@@ -114,7 +114,13 @@
     expect($result['id'])->toBe('pub_photo_123');
 
     Http::assertSent(function ($request) {
-        return str_contains($request->url(), '/post/publish/content/init/');
+        if (! str_contains($request->url(), '/post/publish/content/init/')) {
+            return false;
+        }
+        $body = json_decode($request->body(), true);
+
+        return data_get($body, 'post_info.description') === 'Check out this TikTok video!'
+            && ! isset($body['post_info']['title']);
     });
 });
 
@@ -481,7 +487,9 @@
         return $postInfo['auto_add_music'] === true
             && ! isset($postInfo['disable_duet'])
             && ! isset($postInfo['disable_stitch'])
-            && ! isset($postInfo['is_aigc']);
+            && ! isset($postInfo['is_aigc'])
+            && ! isset($postInfo['title'])
+            && isset($postInfo['description']);
     });
 });
 
@@ -577,3 +585,45 @@
             && ! isset($postInfo['brand_content_toggle']);
     });
 });
+
+test('tiktok publisher sends video caption in title field, never description', function () {
+    $this->post->update([
+        'media' => [
+            [
+                'id' => 'test-media-video',
+                'path' => 'media/2026-01/test-video.mp4',
+                'url' => 'https://example.com/media/2026-01/test-video.mp4',
+                'mime_type' => 'video/mp4',
+                'original_filename' => 'test-video.mp4',
+            ],
+        ],
+        'content' => 'My video caption',
+    ]);
+    $this->postPlatform->update(['meta' => ['privacy_level' => 'SELF_ONLY']]);
+
+    Http::fake([
+        'https://open.tiktokapis.com/v2/post/publish/creator_info/query/' => Http::response([
+            'data' => [
+                'privacy_level_options' => ['SELF_ONLY'],
+            ],
+        ], 200),
+        'https://open.tiktokapis.com/v2/post/publish/video/init/' => Http::response([
+            'data' => ['publish_id' => 'pub_video_123'],
+        ], 200),
+        'https://open.tiktokapis.com/v2/post/publish/status/fetch/' => Http::response([
+            'data' => ['status' => 'PUBLISH_COMPLETE', 'publish_id' => 'pub_video_123'],
+        ], 200),
+    ]);
+
+    $this->publisher->publish($this->postPlatform);
+
+    Http::assertSent(function ($request) {
+        if (! str_contains($request->url(), '/post/publish/video/init/')) {
+            return false;
+        }
+        $body = json_decode($request->body(), true);
+
+        return data_get($body, 'post_info.title') === 'My video caption'
+            && ! isset($body['post_info']['description']);
+    });
+});