diff --git a/models/ModelBase.py b/models/ModelBase.py
index d243e87..b5b5b5c 100644
--- a/models/ModelBase.py
+++ b/models/ModelBase.py
@@ -143,12 +143,12 @@ class ModelBase(object):
             self.batch_size = 1
 
         if self.is_training_mode:
-            if self.write_preview_history:
-                if self.device_args['force_gpu_idx'] == -1:
-                    self.preview_history_path = self.model_path / ( '%s_history' % (self.get_model_name()) )
-                else:
-                    self.preview_history_path = self.model_path / ( '%d_%s_history' % (self.device_args['force_gpu_idx'], self.get_model_name()) )
+            if self.device_args['force_gpu_idx'] == -1:
+                self.preview_history_path = self.model_path / ( '%s_history' % (self.get_model_name()) )
+            else:
+                self.preview_history_path = self.model_path / ( '%d_%s_history' % (self.device_args['force_gpu_idx'], self.get_model_name()) )
 
+            if self.write_preview_history or io.is_colab():
                 if not self.preview_history_path.exists():
                     self.preview_history_path.mkdir(exist_ok=True)
                 else:
@@ -365,12 +365,19 @@ class ModelBase(object):
 
         self.loss_history.append ( [float(loss[1]) for loss in losses] )
 
-        if self.write_preview_history:
-            if self.iter % 10 == 0:
-                preview = self.get_static_preview()
+        if self.iter % 10 == 0:
+            plist = []
+            if io.is_colab():
+                plist += [ (self.get_previews()[0][1], 'preview.jpg') ]
+
+            if self.write_preview_history:
+                plist += [ (self.get_static_preview(), '%.6d.jpg' %(self.iter) ) ]
+
+            for preview, filename in plist:
                 preview_lh = ModelBase.get_loss_history_preview(self.loss_history, self.iter, preview.shape[1], preview.shape[2])
                 img = (np.concatenate ( [preview_lh, preview], axis=0 ) * 255).astype(np.uint8)
-                cv2_imwrite ( str (self.preview_history_path / ('%.6d.jpg' %( self.iter) )), img )
+                cv2_imwrite ( str (self.preview_history_path / filename), img )
+
 
         self.iter += 1