diff --git a/timm/models/byobnet.py b/timm/models/byobnet.py
index d41245f5..750a43de 100644
--- a/timm/models/byobnet.py
+++ b/timm/models/byobnet.py
@@ -98,6 +98,11 @@ default_cfgs = {
         first_conv='stem.conv1.conv', input_size=(3, 256, 256), pool_size=(8, 8), interpolation='bicubic'),
     'gcresnet50t': _cfg(
         first_conv='stem.conv1.conv', input_size=(3, 256, 256), pool_size=(8, 8), interpolation='bicubic'),
+
+    'gcresnext26ts': _cfg(
+        first_conv='stem.conv1.conv', input_size=(3, 256, 256), pool_size=(8, 8), interpolation='bicubic'),
+    'bat_resnext26ts': _cfg(
+        first_conv='stem.conv1.conv', input_size=(3, 256, 256), pool_size=(8, 8), interpolation='bicubic'),
 }
 
 
@@ -307,6 +312,37 @@ model_cfgs = dict(
         stem_pool=None,
         attn_layer='gc'
     ),
+
+    gcresnext26ts=ByoModelCfg(
+        blocks=(
+            ByoBlockCfg(type='bottle', d=3, c=256, s=1, gs=32, br=0.25),
+            ByoBlockCfg(type='bottle', d=4, c=512, s=2, gs=32, br=0.25),
+            ByoBlockCfg(type='bottle', d=6, c=1024, s=2, gs=32, br=0.25),
+            ByoBlockCfg(type='bottle', d=3, c=2048, s=2, gs=32, br=0.25),
+        ),
+        stem_chs=64,
+        stem_type='tiered',
+        stem_pool='maxpool',
+        num_features=0,
+        act_layer='silu',
+        attn_layer='gc',
+    ),
+
+    bat_resnext26ts=ByoModelCfg(
+        blocks=(
+            ByoBlockCfg(type='bottle', d=2, c=256, s=1, gs=32, br=0.25),
+            ByoBlockCfg(type='bottle', d=2, c=512, s=2, gs=32, br=0.25),
+            ByoBlockCfg(type='bottle', d=2, c=1024, s=2, gs=32, br=0.25),
+            ByoBlockCfg(type='bottle', d=2, c=2048, s=2, gs=32, br=0.25),
+        ),
+        stem_chs=64,
+        stem_type='tiered',
+        stem_pool='maxpool',
+        num_features=0,
+        act_layer='silu',
+        attn_layer='bat',
+        attn_kwargs=dict(block_size=8)
+    ),
 )
 
 
@@ -426,6 +462,20 @@ def gcresnet50t(pretrained=False, **kwargs):
     return _create_byobnet('gcresnet50t', pretrained=pretrained, **kwargs)
 
 
+@register_model
+def gcresnext26ts(pretrained=False, **kwargs):
+    """
+    """
+    return _create_byobnet('gcresnext26ts', pretrained=pretrained, **kwargs)
+
+
+@register_model
+def bat_resnext26ts(pretrained=False, **kwargs):
+    """
+    """
+    return _create_byobnet('bat_resnext26ts', pretrained=pretrained, **kwargs)
+
+
 def expand_blocks_cfg(stage_blocks_cfg: Union[ByoBlockCfg, Sequence[ByoBlockCfg]]) -> List[ByoBlockCfg]:
     if not isinstance(stage_blocks_cfg, Sequence):
         stage_blocks_cfg = (stage_blocks_cfg,)