diff --git a/co-tracker/README.md b/co-tracker/README.md
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+# Co-Tracker
+
+This app takes a video, projects a mask of points onto the first frame, and propagates that mask,
+tracking each point over the course of the video. 
+
+If the "visualize" option is checked, the output tracks are projected onto a video, which is returned. Otherwise,
+the raw arrays of the tracks and their visibility masks are returned instead.
+
+The "grid size" option refers to the granularity of masks, in pixels, and the "pad size" option refers to how large of a padding to provide the visualization in the event of tracks moving off screen.
\ No newline at end of file
diff --git a/co-tracker/main.py b/co-tracker/main.py
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+import sieve
+
+metadata = sieve.Metadata(
+    title="Video Co-Tracker",
+    description="Track any point in a video",
+    code_url="https://github.com/sieve-community/examples/tree/main/co-tracker",
+    image=sieve.Image(
+        url="https://github.com/facebookresearch/co-tracker/raw/main/assets/bmx-bumps.gif"
+    ),
+    tags=["Video", "Tracking"],
+    readme=open("README.md", "r").read(),
+)
+
+@sieve.Model(
+    name="co-tracker", 
+    gpu=True, 
+    python_packages=[
+        "git+https://github.com/facebookresearch/co-tracker",
+        "torchvision==0.15.2",
+        "torch==2.0.1",
+        "einops==0.4.1",
+        "timm==0.6.7",
+        "tqdm==4.64.1",
+        "flow_vis",
+        "matplotlib==3.7.0",
+        "moviepy==1.0.3",
+    ],
+    python_version="3.11",
+    cuda_version="11.8",
+    run_commands=[
+        "mkdir -p /root/.cache/torch/hub/facebookresearch_co-tracker_master",
+        "wget -q https://dl.fbaipublicfiles.com/cotracker/cotracker_stride_4_wind_8.pth -O /root/.cache/torch/hub/facebookresearch_co-tracker_master/cotracker_stride_4_wind_8.pth",
+    ],
+    metadata=metadata
+)
+class CoTracker:
+    def __setup__(self):
+        import torch
+        import os
+        import tempfile
+        from cotracker.predictor import CoTrackerPredictor
+        self.model = CoTrackerPredictor(
+            checkpoint='/root/.cache/torch/hub/facebookresearch_co-tracker_master/cotracker_stride_4_wind_8.pth'
+            )
+        self.use_cuda = torch.cuda.is_available()
+        if self.use_cuda:
+            self.model = self.model.cuda()
+        self.videos_dir = tempfile.mkdtemp()
+    
+    def __predict__(self, video: sieve.Video, grid_size: int = 30, pad_size: int = 100, visualize: bool = False):
+        from cotracker.utils.visualizer import Visualizer, read_video_from_path
+        import torch
+        import os
+        
+        loaded_video = read_video_from_path(video.path)
+        loaded_video = torch.from_numpy(loaded_video).permute(0, 3, 1, 2).float()
+
+        if self.use_cuda:
+            loaded_video = loaded_video.cuda()
+
+        # Unsqueeze to add batch dimension
+        loaded_video = loaded_video.unsqueeze(0)
+        
+        pred_tracks, pred_visibility = self.model(loaded_video, grid_size=grid_size)
+
+        for file in os.listdir(self.videos_dir):
+            os.remove(os.path.join(self.videos_dir, file))
+
+        sieve_array_pred_tracks = sieve.Array(array=pred_tracks.cpu().numpy())
+        sieve_array_pred_visibility = sieve.Array(array=pred_visibility.cpu().numpy())
+
+        if visualize:
+
+            vis = Visualizer(
+                save_dir=self.videos_dir,
+                pad_value=pad_size
+            )
+
+            vis.visualize(
+                video=loaded_video,
+                tracks=pred_tracks,
+                visibility=pred_visibility,
+                filename="output",
+            )
+
+            return sieve.Video(path=os.path.join(self.videos_dir, "output_pred_track.mp4"))
+
+        return sieve_array_pred_tracks, sieve_array_pred_visibility
+