diff --git a/bindings/cpp/include/svs/runtime/vamana_index.h b/bindings/cpp/include/svs/runtime/vamana_index.h
index 0f11edec6..5c2dc3c36 100644
--- a/bindings/cpp/include/svs/runtime/vamana_index.h
+++ b/bindings/cpp/include/svs/runtime/vamana_index.h
@@ -98,12 +98,6 @@ struct SVS_RUNTIME_API VamanaIndex {
     // Reconstruct `n` vectors by ID into `output` buffer (n * dim floats).
     virtual Status reconstruct_at(size_t n, const size_t* ids, float* output) noexcept = 0;
 
-    // Return the index memory usage in bytes.
-    virtual size_t get_memory_usage() const noexcept = 0;
-
-    // Return the bytes allocated by each index component.
-    virtual Status get_memory_breakdown(MemoryBreakdown* out) const noexcept = 0;
-
     // Utility function to check storage kind support
     static Status check_storage_kind(StorageKind storage_kind) noexcept;
 
@@ -120,6 +114,13 @@ struct SVS_RUNTIME_API VamanaIndex {
     static Status destroy(VamanaIndex* index) noexcept;
 
     virtual Status save(std::ostream& out) const noexcept = 0;
+
+    // Return the index memory usage in bytes.
+    virtual size_t get_memory_usage() const noexcept = 0;
+
+    // Return the bytes allocated by each index component.
+    virtual Status get_memory_breakdown(MemoryBreakdown* out) const noexcept = 0;
+
     static Status load(
         VamanaIndex** index, std::istream& in, MetricType metric, StorageKind storage_kind
     ) noexcept;