diff --git a/esphome/components/api/api.proto b/esphome/components/api/api.proto
index fc05947774..b5aaec430c 100644
--- a/esphome/components/api/api.proto
+++ b/esphome/components/api/api.proto
@@ -1292,7 +1292,7 @@ message ListEntitiesSirenResponse {
 
   string icon = 5 [(field_ifdef) = "USE_ENTITY_ICON"];
   bool disabled_by_default = 6;
-  repeated string tones = 7;
+  repeated string tones = 7 [(container_pointer_no_template) = "FixedVector<const char *>"];
   bool supports_duration = 8;
   bool supports_volume = 9;
   EntityCategory entity_category = 10;
diff --git a/esphome/components/api/api_pb2.cpp b/esphome/components/api/api_pb2.cpp
index edd6dfc6a9..1147cd986e 100644
--- a/esphome/components/api/api_pb2.cpp
+++ b/esphome/components/api/api_pb2.cpp
@@ -1710,8 +1710,8 @@ void ListEntitiesSirenResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(5, this->icon_ref_);
 #endif
   buffer.encode_bool(6, this->disabled_by_default);
-  for (auto &it : this->tones) {
-    buffer.encode_string(7, it, true);
+  for (const char *it : *this->tones) {
+    buffer.encode_string(7, it, strlen(it), true);
   }
   buffer.encode_bool(8, this->supports_duration);
   buffer.encode_bool(9, this->supports_volume);
@@ -1728,9 +1728,9 @@ void ListEntitiesSirenResponse::calculate_size(ProtoSize &size) const {
   size.add_length(1, this->icon_ref_.size());
 #endif
   size.add_bool(1, this->disabled_by_default);
-  if (!this->tones.empty()) {
-    for (const auto &it : this->tones) {
-      size.add_length_force(1, it.size());
+  if (!this->tones->empty()) {
+    for (const char *it : *this->tones) {
+      size.add_length_force(1, strlen(it));
     }
   }
   size.add_bool(1, this->supports_duration);
diff --git a/esphome/components/api/api_pb2.h b/esphome/components/api/api_pb2.h
index 2579ebbae2..4b14697181 100644
--- a/esphome/components/api/api_pb2.h
+++ b/esphome/components/api/api_pb2.h
@@ -1708,7 +1708,7 @@ class ListEntitiesSirenResponse final : public InfoResponseProtoMessage {
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "list_entities_siren_response"; }
 #endif
-  std::vector<std::string> tones{};
+  const FixedVector<const char *> *tones{};
   bool supports_duration{false};
   bool supports_volume{false};
   void encode(ProtoWriteBuffer buffer) const override;
diff --git a/esphome/components/api/api_pb2_dump.cpp b/esphome/components/api/api_pb2_dump.cpp
index 567f10fcc0..12df109a3d 100644
--- a/esphome/components/api/api_pb2_dump.cpp
+++ b/esphome/components/api/api_pb2_dump.cpp
@@ -1579,7 +1579,7 @@ void ListEntitiesSirenResponse::dump_to(std::string &out) const {
   dump_field(out, "icon", this->icon_ref_);
 #endif
   dump_field(out, "disabled_by_default", this->disabled_by_default);
-  for (const auto &it : this->tones) {
+  for (const auto &it : *this->tones) {
     dump_field(out, "tones", it, 4);
   }
   dump_field(out, "supports_duration", this->supports_duration);