diff --git a/mlx/backend/metal/kernels/scaled_dot_product_attention.metal b/mlx/backend/metal/kernels/scaled_dot_product_attention.metal
index c668d9d8c5..ca2fd358ef 100644
--- a/mlx/backend/metal/kernels/scaled_dot_product_attention.metal
+++ b/mlx/backend/metal/kernels/scaled_dot_product_attention.metal
@@ -32,10 +32,12 @@ using namespace metal;
   instantiate_sdpa_vector(type, 64, 64)          \
   instantiate_sdpa_vector(type, 96, 96)          \
   instantiate_sdpa_vector(type, 128, 128)        \
+  instantiate_sdpa_vector(type, 192, 192)        \
   instantiate_sdpa_vector(type, 256, 256)        \
   instantiate_sdpa_vector_aggregation(type, 64)  \
   instantiate_sdpa_vector_aggregation(type, 96)  \
   instantiate_sdpa_vector_aggregation(type, 128) \
+  instantiate_sdpa_vector_aggregation(type, 192) \
   instantiate_sdpa_vector_aggregation(type, 256)
 
 instantiate_sdpa_vector_heads(float)
diff --git a/mlx/backend/metal/kernels/steel/attn/kernels/steel_attention.metal b/mlx/backend/metal/kernels/steel/attn/kernels/steel_attention.metal
index 0ff9d91b00..4a67826951 100644
--- a/mlx/backend/metal/kernels/steel/attn/kernels/steel_attention.metal
+++ b/mlx/backend/metal/kernels/steel/attn/kernels/steel_attention.metal
@@ -12,6 +12,7 @@
   attention, dtype, bq, bk, bd, wm, wn, mtype, float)
 
 #define instantiate_attn_shapes_helper(iname, itype, mname, mtype)  \
+    instantiate_attn(iname, itype, 32, 16, 256, 4, 1, mname, mtype) \
     instantiate_attn(iname, itype, 32, 16, 128, 4, 1, mname, mtype) \
     instantiate_attn(iname, itype, 32, 32,  80, 4, 1, mname, mtype) \
     instantiate_attn(iname, itype, 32, 32,  64, 4, 1, mname, mtype)
diff --git a/mlx/backend/metal/scaled_dot_product_attention.cpp b/mlx/backend/metal/scaled_dot_product_attention.cpp
index 37e554f183..4e6ea61880 100644
--- a/mlx/backend/metal/scaled_dot_product_attention.cpp
+++ b/mlx/backend/metal/scaled_dot_product_attention.cpp
@@ -618,9 +618,17 @@ bool ScaledDotProductAttention::use_fallback(
   const bool sdpa_vector_supported_head_dim =
       query_head_dim == value_head_dim &&
       (query_head_dim == 64 || query_head_dim == 96 || query_head_dim == 128 ||
-       query_head_dim == 256);
+       query_head_dim == 192 || query_head_dim == 256);
+  // For head_dim >= 192, the fused full-attention kernel is slower than
+  // unfused for short sequences. Only route to fused when kL is large enough
+  // that the unfused path would exceed Metal buffer limits (the fused kernel
+  // tiles K/V so it scales to arbitrary sequence lengths).
+  const bool sdpa_full_large_hd_ok =
+      (query_head_dim == 192 || query_head_dim == 256) &&
+      key_sequence_length > 16384;
   const bool sdpa_full_supported_head_dim = query_head_dim == value_head_dim &&
-      (query_head_dim == 64 || query_head_dim == 80 || query_head_dim == 128);
+      (query_head_dim == 64 || query_head_dim == 80 || query_head_dim == 128 ||
+       sdpa_full_large_hd_ok);
 
   const bool sdpa_full_supported_mask = !has_mask || has_arr_mask ||
       (query_sequence_length <= key_sequence_length && do_causal);