diff --git a/src/plugins/intel_npu/src/compiler_adapter/include/ze_graph_ext_wrapper.hpp b/src/plugins/intel_npu/src/compiler_adapter/include/ze_graph_ext_wrapper.hpp
index 93a9a53dacb53d..e1b4e91cf4356c 100644
--- a/src/plugins/intel_npu/src/compiler_adapter/include/ze_graph_ext_wrapper.hpp
+++ b/src/plugins/intel_npu/src/compiler_adapter/include/ze_graph_ext_wrapper.hpp
@@ -71,7 +71,7 @@ class ZeGraphExtWrappers final : public ZeGraphExtWrappersInterface {
 
     void setGraphArgumentValue(ze_graph_handle_t graphHandle, uint32_t argi_, const void* argv) const override;
 
-    void initializeGraph(ze_graph_handle_t graphHandle, const Config& config, std::optional<std::vector<uint8_t>> /* unusedBlobOpt */) const override;
+    void initializeGraph(ze_graph_handle_t graphHandle, const Config& config) const override;
 
 private:
     template <ze_graph_ext_version_t T = TableExtension, std::enable_if_t<!NotSupportQuery(T), bool> = true>
diff --git a/src/plugins/intel_npu/src/compiler_adapter/include/ze_graph_ext_wrapper_interface.hpp b/src/plugins/intel_npu/src/compiler_adapter/include/ze_graph_ext_wrapper_interface.hpp
index 58a22aefaf8512..ac44f9853e11e3 100644
--- a/src/plugins/intel_npu/src/compiler_adapter/include/ze_graph_ext_wrapper_interface.hpp
+++ b/src/plugins/intel_npu/src/compiler_adapter/include/ze_graph_ext_wrapper_interface.hpp
@@ -34,7 +34,7 @@ class ZeGraphExtWrappersInterface {
 
     virtual void setGraphArgumentValue(ze_graph_handle_t graphHandle, uint32_t argi_, const void* argv) const = 0;
 
-    virtual void initializeGraph(ze_graph_handle_t graphHandle, const Config& config, std::optional<std::vector<uint8_t>> blobOpt) const = 0;
+    virtual void initializeGraph(ze_graph_handle_t graphHandle, const Config& config) const = 0;
 
     virtual ~ZeGraphExtWrappersInterface() = default;
 };
diff --git a/src/plugins/intel_npu/src/compiler_adapter/src/driver_graph.cpp b/src/plugins/intel_npu/src/compiler_adapter/src/driver_graph.cpp
index 50db31fa16b988..640adeb21bfc02 100644
--- a/src/plugins/intel_npu/src/compiler_adapter/src/driver_graph.cpp
+++ b/src/plugins/intel_npu/src/compiler_adapter/src/driver_graph.cpp
@@ -117,7 +117,9 @@ void DriverGraph::initialize(const Config& config) {
         set_workload_type(config.get<WORKLOAD_TYPE>());
     }
 
-    _zeGraphExt->initializeGraph(_handle, config, std::move(_blob));
+    _zeGraphExt->initializeGraph(_handle, config);
+    _blob.clear();
+    _blob.shrink_to_fit();
 
     _logger.debug("Graph initialize finish");
 }
diff --git a/src/plugins/intel_npu/src/compiler_adapter/src/plugin_graph.cpp b/src/plugins/intel_npu/src/compiler_adapter/src/plugin_graph.cpp
index c1479e6902c2ab..097d0a3820e160 100644
--- a/src/plugins/intel_npu/src/compiler_adapter/src/plugin_graph.cpp
+++ b/src/plugins/intel_npu/src/compiler_adapter/src/plugin_graph.cpp
@@ -116,7 +116,9 @@ void PluginGraph::initialize(const Config& config) {
         set_workload_type(config.get<WORKLOAD_TYPE>());
     }
 
-    _zeGraphExt->initializeGraph(_handle, config, std::move(_blob));
+    _zeGraphExt->initializeGraph(_handle, config);
+    _blob.clear();
+    _blob.shrink_to_fit();
 
     _logger.debug("Graph initialize finish");
 }
diff --git a/src/plugins/intel_npu/src/compiler_adapter/src/ze_graph_ext_wrapper.cpp b/src/plugins/intel_npu/src/compiler_adapter/src/ze_graph_ext_wrapper.cpp
index 60e8f035d119af..3f87fe9d050725 100644
--- a/src/plugins/intel_npu/src/compiler_adapter/src/ze_graph_ext_wrapper.cpp
+++ b/src/plugins/intel_npu/src/compiler_adapter/src/ze_graph_ext_wrapper.cpp
@@ -145,7 +145,7 @@ void ZeGraphExtWrappers<TableExtension>::setGraphArgumentValue(ze_graph_handle_t
 }
 
 template <ze_graph_ext_version_t TableExtension>
-void ZeGraphExtWrappers<TableExtension>::initializeGraph(ze_graph_handle_t graphHandle, const Config& config, std::optional<std::vector<uint8_t>> /* unusedBlob */) const {
+void ZeGraphExtWrappers<TableExtension>::initializeGraph(ze_graph_handle_t graphHandle, const Config& config) const {
     if (_zeroInitStruct->getGraphDdiTable().version() < ZE_GRAPH_EXT_VERSION_1_8) {
         initialize_graph_through_command_list(graphHandle, config);
     } else {