diff --git a/esphome/codegen.py b/esphome/codegen.py
index 6d55c6023d..6decd77c62 100644
--- a/esphome/codegen.py
+++ b/esphome/codegen.py
@@ -62,7 +62,6 @@ from esphome.cpp_types import (  # noqa: F401
     EntityBase,
     EntityCategory,
     ESPTime,
-    FixedVector,
     GPIOPin,
     InternalGPIOPin,
     JsonObject,
diff --git a/esphome/components/api/__init__.py b/esphome/components/api/__init__.py
index ee35d7f904..cf95da1bf0 100644
--- a/esphome/components/api/__init__.py
+++ b/esphome/components/api/__init__.py
@@ -71,12 +71,10 @@ SERVICE_ARG_NATIVE_TYPES = {
     "int": cg.int32,
     "float": float,
     "string": cg.std_string,
-    "bool[]": cg.FixedVector.template(bool).operator("const").operator("ref"),
-    "int[]": cg.FixedVector.template(cg.int32).operator("const").operator("ref"),
-    "float[]": cg.FixedVector.template(float).operator("const").operator("ref"),
-    "string[]": cg.FixedVector.template(cg.std_string)
-    .operator("const")
-    .operator("ref"),
+    "bool[]": cg.std_vector.template(bool),
+    "int[]": cg.std_vector.template(cg.int32),
+    "float[]": cg.std_vector.template(float),
+    "string[]": cg.std_vector.template(cg.std_string),
 }
 CONF_ENCRYPTION = "encryption"
 CONF_BATCH_DELAY = "batch_delay"
diff --git a/esphome/components/api/user_services.cpp b/esphome/components/api/user_services.cpp
index a4b83e96c1..3cbf2ab5f9 100644
--- a/esphome/components/api/user_services.cpp
+++ b/esphome/components/api/user_services.cpp
@@ -11,58 +11,23 @@ template<> int32_t get_execute_arg_value<int32_t>(const ExecuteServiceArgument &
 }
 template<> float get_execute_arg_value<float>(const ExecuteServiceArgument &arg) { return arg.float_; }
 template<> std::string get_execute_arg_value<std::string>(const ExecuteServiceArgument &arg) { return arg.string_; }
-
-// Legacy std::vector versions for custom C++ code - optimized with reserve
 template<> std::vector<bool> get_execute_arg_value<std::vector<bool>>(const ExecuteServiceArgument &arg) {
-  std::vector<bool> result;
-  result.reserve(arg.bool_array.size());
-  result.insert(result.end(), arg.bool_array.begin(), arg.bool_array.end());
-  return result;
+  return std::vector<bool>(arg.bool_array.begin(), arg.bool_array.end());
 }
 template<> std::vector<int32_t> get_execute_arg_value<std::vector<int32_t>>(const ExecuteServiceArgument &arg) {
-  std::vector<int32_t> result;
-  result.reserve(arg.int_array.size());
-  result.insert(result.end(), arg.int_array.begin(), arg.int_array.end());
-  return result;
+  return std::vector<int32_t>(arg.int_array.begin(), arg.int_array.end());
 }
 template<> std::vector<float> get_execute_arg_value<std::vector<float>>(const ExecuteServiceArgument &arg) {
-  std::vector<float> result;
-  result.reserve(arg.float_array.size());
-  result.insert(result.end(), arg.float_array.begin(), arg.float_array.end());
-  return result;
+  return std::vector<float>(arg.float_array.begin(), arg.float_array.end());
 }
 template<> std::vector<std::string> get_execute_arg_value<std::vector<std::string>>(const ExecuteServiceArgument &arg) {
-  std::vector<std::string> result;
-  result.reserve(arg.string_array.size());
-  result.insert(result.end(), arg.string_array.begin(), arg.string_array.end());
-  return result;
-}
-
-// New FixedVector const reference versions for YAML-generated services - zero-copy
-template<>
-const FixedVector<bool> &get_execute_arg_value<const FixedVector<bool> &>(const ExecuteServiceArgument &arg) {
-  return arg.bool_array;
-}
-template<>
-const FixedVector<int32_t> &get_execute_arg_value<const FixedVector<int32_t> &>(const ExecuteServiceArgument &arg) {
-  return arg.int_array;
-}
-template<>
-const FixedVector<float> &get_execute_arg_value<const FixedVector<float> &>(const ExecuteServiceArgument &arg) {
-  return arg.float_array;
-}
-template<>
-const FixedVector<std::string> &get_execute_arg_value<const FixedVector<std::string> &>(
-    const ExecuteServiceArgument &arg) {
-  return arg.string_array;
+  return std::vector<std::string>(arg.string_array.begin(), arg.string_array.end());
 }
 
 template<> enums::ServiceArgType to_service_arg_type<bool>() { return enums::SERVICE_ARG_TYPE_BOOL; }
 template<> enums::ServiceArgType to_service_arg_type<int32_t>() { return enums::SERVICE_ARG_TYPE_INT; }
 template<> enums::ServiceArgType to_service_arg_type<float>() { return enums::SERVICE_ARG_TYPE_FLOAT; }
 template<> enums::ServiceArgType to_service_arg_type<std::string>() { return enums::SERVICE_ARG_TYPE_STRING; }
-
-// Legacy std::vector versions for custom C++ code
 template<> enums::ServiceArgType to_service_arg_type<std::vector<bool>>() { return enums::SERVICE_ARG_TYPE_BOOL_ARRAY; }
 template<> enums::ServiceArgType to_service_arg_type<std::vector<int32_t>>() {
   return enums::SERVICE_ARG_TYPE_INT_ARRAY;
@@ -74,18 +39,4 @@ template<> enums::ServiceArgType to_service_arg_type<std::vector<std::string>>()
   return enums::SERVICE_ARG_TYPE_STRING_ARRAY;
 }
 
-// New FixedVector const reference versions for YAML-generated services
-template<> enums::ServiceArgType to_service_arg_type<const FixedVector<bool> &>() {
-  return enums::SERVICE_ARG_TYPE_BOOL_ARRAY;
-}
-template<> enums::ServiceArgType to_service_arg_type<const FixedVector<int32_t> &>() {
-  return enums::SERVICE_ARG_TYPE_INT_ARRAY;
-}
-template<> enums::ServiceArgType to_service_arg_type<const FixedVector<float> &>() {
-  return enums::SERVICE_ARG_TYPE_FLOAT_ARRAY;
-}
-template<> enums::ServiceArgType to_service_arg_type<const FixedVector<std::string> &>() {
-  return enums::SERVICE_ARG_TYPE_STRING_ARRAY;
-}
-
 }  // namespace esphome::api
diff --git a/esphome/cpp_types.py b/esphome/cpp_types.py
index 0d1813f63b..a0dd62cb4e 100644
--- a/esphome/cpp_types.py
+++ b/esphome/cpp_types.py
@@ -23,7 +23,6 @@ size_t = global_ns.namespace("size_t")
 const_char_ptr = global_ns.namespace("const char *")
 NAN = global_ns.namespace("NAN")
 esphome_ns = global_ns  # using namespace esphome;
-FixedVector = esphome_ns.class_("FixedVector")
 App = esphome_ns.App
 EntityBase = esphome_ns.class_("EntityBase")
 Component = esphome_ns.class_("Component")