diff --git a/model/model/v1alpha/model.proto b/model/model/v1alpha/model.proto
index f69d3da0..b79745c9 100644
--- a/model/model/v1alpha/model.proto
+++ b/model/model/v1alpha/model.proto
@@ -49,7 +49,7 @@ message ReadinessResponse {
 // Region describes the supported cloud provider and regions, with
 // their supported GPU respectively.
 message Region {
-  // Concate name of provider and region
+  // Concatenate name of provider and region
   string region_name = 1;
   // Hardware describes the available hardware types in this region
   repeated Hardware hardware = 2;
@@ -200,8 +200,8 @@ message Model {
     (google.api.field_behavior) = REQUIRED,
     (google.api.field_behavior) = IMMUTABLE
   ];
-  // Hardware of choice to serve the model.
-  string hardware = 19 [(google.api.field_behavior) = REQUIRED];
+  // Deleted Fields.
+  reserved 19;
   // README holds the model documentation.
   optional string readme = 20 [(google.api.field_behavior) = OPTIONAL];
   // A link to the source code of the model (e.g. to a GitHub repository).
@@ -228,6 +228,8 @@ message Model {
   repeated string versions = 31 [(google.api.field_behavior) = OUTPUT_ONLY];
   // Statistic data.
   Stats stats = 32 [(google.api.field_behavior) = OUTPUT_ONLY];
+  // Hardware of choice to serve the model.
+  Hardware hardware = 33 [(google.api.field_behavior) = REQUIRED];
 }
 
 // ListModelsRequest represents a request to list  models.