diff --git a/gemma/configs.cc b/gemma/configs.cc
index b8048b8..70fd8fa 100644
--- a/gemma/configs.cc
+++ b/gemma/configs.cc
@@ -678,7 +678,9 @@ Model DeduceModel(const Path& blob_path, size_t layers, int layer_types) {
       return Model::GEMMA3_270M;
 
     case 26:
-      if (layer_types & kDeducedViT) return Model::GEMMA3_1B;
+      if (layer_types & (kDeducedViT|kDeducedKqNorm)) {
+        return Model::GEMMA3_1B;
+      }
       return Model::GEMMA2_2B;
     case 27:
       return (layer_types & kDeduced448) ? Model::PALIGEMMA2_3B_448
diff --git a/gemma/configs.h b/gemma/configs.h
index e2cb5e2..5de74bf 100644
--- a/gemma/configs.h
+++ b/gemma/configs.h
@@ -513,6 +513,7 @@ ModelConfig GetVitConfig(const ModelConfig& config);
 enum DeducedLayerTypes {
   kDeducedViT = 2,
   kDeduced448 = 4,   // For ViT, 448x448 resolution instead of 224x224.
+  kDeducedKqNorm = 8,
 };
 
 // layer_types is one or more of `DeducedLayerTypes`.
diff --git a/gemma/model_store.cc b/gemma/model_store.cc
index 2f3e1ec..204dee9 100644
--- a/gemma/model_store.cc
+++ b/gemma/model_store.cc
@@ -221,6 +221,8 @@ static size_t DeduceNumLayers(const KeyVec& keys) {
 // This works with or without type prefixes because it searches for substrings.
 static int DeduceLayerTypes(const BlobReader& reader) {
   int layer_types = 0;
+  bool has_key_norm = false;
+  bool has_query_norm = false;
   for (size_t key_idx = 0; key_idx < reader.Keys().size(); ++key_idx) {
     const std::string& key = reader.Keys()[key_idx];
     if (key.find("qkv_ein_w") != std::string::npos) {  // NOLINT
@@ -232,6 +234,15 @@ static int DeduceLayerTypes(const BlobReader& reader) {
         layer_types |= kDeduced448;
       }
     }
+    if (key.find("key_norm") != std::string::npos) {  // NOLINT
+      has_key_norm = true;
+    }
+    if (key.find("query_norm") != std::string::npos) {  // NOLINT
+      has_query_norm = true;
+    }
+  }
+  if (has_key_norm && has_query_norm) {
+    layer_types |= kDeducedKqNorm;
   }
   return layer_types;
 }