diff --git a/artifact/artifact/v1alpha/artifact_public_service.proto b/artifact/artifact/v1alpha/artifact_public_service.proto
index 82f48c24..f4ff7d0c 100644
--- a/artifact/artifact/v1alpha/artifact_public_service.proto
+++ b/artifact/artifact/v1alpha/artifact_public_service.proto
@@ -5,10 +5,9 @@ package artifact.artifact.v1alpha;
 // Artifact definitions
 import "artifact/artifact/v1alpha/artifact.proto";
 import "artifact/artifact/v1alpha/chunk.proto";
+import "artifact/artifact/v1alpha/conversation.proto";
 import "artifact/artifact/v1alpha/file_catalog.proto";
 import "artifact/artifact/v1alpha/qa.proto";
-import "artifact/artifact/v1alpha/conversation.proto";
-
 // Google API
 import "google/api/annotations.proto";
 import "google/api/visibility.proto";
@@ -200,5 +199,4 @@ service ArtifactPublicService {
     option (google.api.http) = {delete: "/v1alpha/namespaces/{namespace_id}/catalogs/{catalog_id}/conversations/{conversation_id}/messages/{message_uid}"};
     option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_operation) = {tags: "Catalog"};
   }
-
 }
diff --git a/artifact/artifact/v1alpha/conversation.proto b/artifact/artifact/v1alpha/conversation.proto
index b13bf44a..050ca2c8 100644
--- a/artifact/artifact/v1alpha/conversation.proto
+++ b/artifact/artifact/v1alpha/conversation.proto
@@ -2,206 +2,203 @@ syntax = "proto3";
 
 package artifact.artifact.v1alpha;
 
+import "google/api/field_behavior.proto";
 // Protocol Buffers Well-Known Types
 import "google/protobuf/timestamp.proto";
-import "google/api/field_behavior.proto";
-
-
 
 // Conversation represents a chat conversation
 message Conversation {
-    // unique identifier of the conversation created by the system
-    string uid = 1;
-    // namespace id  
-    string namespace_id = 2;
-    // catalog id  
-    string catalog_id = 3;
-    // conversation id/name
-    string id = 4;
-    // creation time of the conversation
-    google.protobuf.Timestamp create_time = 5;
-    // update time of the conversation  
-    google.protobuf.Timestamp update_time = 6;
+  // unique identifier of the conversation created by the system
+  string uid = 1;
+  // namespace id
+  string namespace_id = 2;
+  // catalog id
+  string catalog_id = 3;
+  // conversation id/name
+  string id = 4;
+  // creation time of the conversation
+  google.protobuf.Timestamp create_time = 5;
+  // update time of the conversation
+  google.protobuf.Timestamp update_time = 6;
 }
 
 // Message represents a single message in a conversation
 message Message {
-    // message type 
-    enum MessageType {
-        // unspecified
-        MESSAGE_TYPE_UNSPECIFIED = 0;
-        // text
-        MESSAGE_TYPE_TEXT = 1;
-        }
-    // message uid
-    string uid = 1;
-    // catalog uid
-    string catalog_uid = 2;
-    // conversation uid
-    string conversation_uid = 3;
-    // message content
-    string content = 4;
-    // message role e.g., "user" or "assistant"
-    string role = 5;
-    // message type 
-    MessageType type = 6;
-    // creation time of the message
-    google.protobuf.Timestamp create_time = 7;
-    // update time of the message
-    google.protobuf.Timestamp update_time = 8;
+  // message type
+  enum MessageType {
+    // unspecified
+    MESSAGE_TYPE_UNSPECIFIED = 0;
+    // text
+    MESSAGE_TYPE_TEXT = 1;
+  }
+  // message uid
+  string uid = 1;
+  // catalog uid
+  string catalog_uid = 2;
+  // conversation uid
+  string conversation_uid = 3;
+  // message content
+  string content = 4;
+  // message role e.g., "user" or "assistant"
+  string role = 5;
+  // message type
+  MessageType type = 6;
+  // creation time of the message
+  google.protobuf.Timestamp create_time = 7;
+  // update time of the message
+  google.protobuf.Timestamp update_time = 8;
 }
 
 // CreateConversationRequest is used to create a new conversation
 message CreateConversationRequest {
-    // namespace id
-    string namespace_id = 1 [(google.api.field_behavior) = REQUIRED];
-    // catalog id  
-    string catalog_id = 2;
-    // conversation id. only allow kebab case
-    string conversation_id = 3 [(google.api.field_behavior) = REQUIRED];
+  // namespace id
+  string namespace_id = 1 [(google.api.field_behavior) = REQUIRED];
+  // catalog id
+  string catalog_id = 2;
+  // conversation id. only allow kebab case
+  string conversation_id = 3 [(google.api.field_behavior) = REQUIRED];
 }
 
 // CreateConversationResponse returns the created conversation
 message CreateConversationResponse {
-    // conversation
-    Conversation conversation = 1;
+  // conversation
+  Conversation conversation = 1;
 }
 
 // ListConversationsRequest is used to list conversations
 message ListConversationsRequest {
-    // namespace id
-    string namespace_id = 1;
-    // catalog id
-    string catalog_id = 2;
-    // page size
-    int32 page_size = 3;
-    // page token
-    string page_token = 4;
+  // namespace id
+  string namespace_id = 1;
+  // catalog id
+  string catalog_id = 2;
+  // page size
+  int32 page_size = 3;
+  // page token
+  string page_token = 4;
 }
 
 // ListConversationsResponse returns a list of conversations
 message ListConversationsResponse {
-    // conversations
-    repeated Conversation conversations = 1;
-    // next page token
-    string next_page_token = 2;
-    // total size
-    int32 total_size = 3;
+  // conversations
+  repeated Conversation conversations = 1;
+  // next page token
+  string next_page_token = 2;
+  // total size
+  int32 total_size = 3;
 }
 
 // UpdateConversationRequest is used to update a conversation
 message UpdateConversationRequest {
-    // namespace id
-    string namespace_id = 1;
-    // catalog id
-    string catalog_id = 2;
-    // conversation id
-    string conversation_id = 3;
-    // new conversation id
-    string new_conversation_id = 4;
+  // namespace id
+  string namespace_id = 1;
+  // catalog id
+  string catalog_id = 2;
+  // conversation id
+  string conversation_id = 3;
+  // new conversation id
+  string new_conversation_id = 4;
 }
 
 // UpdateConversationResponse returns the updated conversation
 message UpdateConversationResponse {
-    // conversation
-    Conversation conversation = 1;
+  // conversation
+  Conversation conversation = 1;
 }
 
 // DeleteConversationRequest is used to delete a conversation
 message DeleteConversationRequest {
-    // namespace id
-    string namespace_id = 1;
-    // catalog id
-    string catalog_id = 2;
-    // conversation id
-    string conversation_id = 3;
+  // namespace id
+  string namespace_id = 1;
+  // catalog id
+  string catalog_id = 2;
+  // conversation id
+  string conversation_id = 3;
 }
 
 // DeleteConversationResponse is empty as no content needs to be returned
-message DeleteConversationResponse {
-}
+message DeleteConversationResponse {}
 
 // CreateMessageRequest is used to create a new message
 message CreateMessageRequest {
-    // namespace id
-    string namespace_id = 1;
-    // catalog id
-    string catalog_id = 2;
-    // conversation id
-    string conversation_id = 3;
-    // message content
-    string content = 4;
-    // message role
-    string role = 5;
-    // message type
-    Message.MessageType type = 6;
+  // namespace id
+  string namespace_id = 1;
+  // catalog id
+  string catalog_id = 2;
+  // conversation id
+  string conversation_id = 3;
+  // message content
+  string content = 4;
+  // message role
+  string role = 5;
+  // message type
+  Message.MessageType type = 6;
 }
 
 // CreateMessageResponse returns the created message
 message CreateMessageResponse {
-    // message
-    Message message = 1;
+  // message
+  Message message = 1;
 }
 
 // ListMessagesRequest is used to list messages in a conversation
 message ListMessagesRequest {
-    // namespace id
-    string namespace_id = 1;
-    // catalog id
-    string catalog_id = 2;
-    // conversation id
-    string conversation_id = 3;
-    // latest k messages
-    int32 latest_k = 4;
-    // page size
-    int32 page_size = 5;
-    // page token
-    string page_token = 6;
-    // include system messages
-    bool include_system_messages = 7;
+  // namespace id
+  string namespace_id = 1;
+  // catalog id
+  string catalog_id = 2;
+  // conversation id
+  string conversation_id = 3;
+  // latest k messages
+  int32 latest_k = 4;
+  // page size
+  int32 page_size = 5;
+  // page token
+  string page_token = 6;
+  // include system messages
+  bool include_system_messages = 7;
 }
 
 // ListMessagesResponse returns a list of messages
 message ListMessagesResponse {
-    // messages
-    repeated Message messages = 1;
-    // next page token
-    string next_page_token = 2;
-    // total size
-    int32 total_size = 3;
+  // messages
+  repeated Message messages = 1;
+  // next page token
+  string next_page_token = 2;
+  // total size
+  int32 total_size = 3;
 }
 
 // UpdateMessageRequest is used to update a message
 message UpdateMessageRequest {
-    // namespace id
-    string namespace_id = 1;
-    // catalog id
-    string catalog_id = 2;
-    // conversation id
-    string conversation_id = 3;
-    // message uid
-    string message_uid = 4;
-    // new message content
-    string content = 5;
+  // namespace id
+  string namespace_id = 1;
+  // catalog id
+  string catalog_id = 2;
+  // conversation id
+  string conversation_id = 3;
+  // message uid
+  string message_uid = 4;
+  // new message content
+  string content = 5;
 }
 
 // UpdateMessageResponse returns the updated message
 message UpdateMessageResponse {
-    // message
-    Message message = 1;
+  // message
+  Message message = 1;
 }
 
 // DeleteMessageRequest is used to delete a message
 message DeleteMessageRequest {
-    // namespace id
-    string namespace_id = 1;
-    // catalog id
-    string catalog_id = 2;
-    // conversation id
-    string conversation_id = 3;
-    // message uid
-    string message_uid = 4;
+  // namespace id
+  string namespace_id = 1;
+  // catalog id
+  string catalog_id = 2;
+  // conversation id
+  string conversation_id = 3;
+  // message uid
+  string message_uid = 4;
 }
 
 // DeleteMessageResponse is empty as no content needs to be returned
-message DeleteMessageResponse {}
\ No newline at end of file
+message DeleteMessageResponse {}
diff --git a/model/model/v1alpha/model.proto b/model/model/v1alpha/model.proto
index 617c33fc..ed3837f1 100644
--- a/model/model/v1alpha/model.proto
+++ b/model/model/v1alpha/model.proto
@@ -4,8 +4,8 @@ package model.model.v1alpha;
 
 // common definitions
 import "common/healthcheck/v1beta/healthcheck.proto";
-import "common/task/v1alpha/task.proto";
 import "common/run/v1alpha/run.proto";
+import "common/task/v1alpha/task.proto";
 // Core definitions
 import "core/mgmt/v1beta/mgmt.proto";
 // Google API
@@ -75,8 +75,8 @@ enum State {
   STATE_UNSPECIFIED = 0;
   // Offline is the state when the model instance number is 0.
   STATE_OFFLINE = 1;
-  // Scaling is the transition state when a model instance is scaling up or down.
-  STATE_SCALING = 2;
+  // Deprecate state.
+  reserved 2;
   // Active is the state when a model is processing requests.
   STATE_ACTIVE = 3;
   // Idle is the state when a model is alive but not processing requests.
@@ -86,6 +86,10 @@ enum State {
   // Starting is the state when the system is provisioning the necessary
   // resources for the model
   STATE_STARTING = 6;
+  // Scaling Up is the transition state when the system is provisioning compute resource for this model instance.
+  STATE_SCALING_UP = 7;
+  // Scaling is the transition state when the system is releasing compute resource for this model instance.
+  STATE_SCALING_DOWN = 8;
 }
 
 // ModelVersion contains information about the version of a model.
diff --git a/openapiv2/model/service.swagger.yaml b/openapiv2/model/service.swagger.yaml
index a402c038..d52056b4 100644
--- a/openapiv2/model/service.swagger.yaml
+++ b/openapiv2/model/service.swagger.yaml
@@ -2830,23 +2830,25 @@ definitions:
     type: string
     enum:
       - STATE_OFFLINE
-      - STATE_SCALING
       - STATE_ACTIVE
       - STATE_IDLE
       - STATE_ERROR
       - STATE_STARTING
+      - STATE_SCALING_UP
+      - STATE_SCALING_DOWN
     description: |-
       State describes the state of a model. See [Deploy
       Models](https://www.instill.tech/docs/latest/model/deploy) for more
       information.
 
        - STATE_OFFLINE: Offline is the state when the model instance number is 0.
-       - STATE_SCALING: Scaling is the transition state when a model instance is scaling up or down.
        - STATE_ACTIVE: Active is the state when a model is processing requests.
        - STATE_IDLE: Idle is the state when a model is alive but not processing requests.
        - STATE_ERROR: Error is the state when the model is undeployable.
        - STATE_STARTING: Starting is the state when the system is provisioning the necessary
       resources for the model
+       - STATE_SCALING_UP: Scaling Up is the transition state when the system is provisioning compute resource for this model instance.
+       - STATE_SCALING_DOWN: Scaling is the transition state when the system is releasing compute resource for this model instance.
   modelv1alphaView:
     type: string
     enum:
diff --git a/vdp/pipeline/v1beta/pipeline_public_service.proto b/vdp/pipeline/v1beta/pipeline_public_service.proto
index cffa37d0..989d6fce 100644
--- a/vdp/pipeline/v1beta/pipeline_public_service.proto
+++ b/vdp/pipeline/v1beta/pipeline_public_service.proto
@@ -1496,9 +1496,7 @@ service PipelinePublicService {
   // regardless the requester. Other requesters will only be able to see the
   // runs requested by themselves.
   rpc ListPipelineRuns(ListPipelineRunsRequest) returns (ListPipelineRunsResponse) {
-    option (google.api.http) = {
-      get: "/v1beta/namespaces/{namespace_id}/pipelines/{pipeline_id}/runs"
-    };
+    option (google.api.http) = {get: "/v1beta/namespaces/{namespace_id}/pipelines/{pipeline_id}/runs"};
     option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_operation) = {tags: "Trigger"};
   }
 
@@ -1506,9 +1504,7 @@ service PipelinePublicService {
   //
   // Returns the information of each component execution within a pipeline run.
   rpc ListComponentRuns(ListComponentRunsRequest) returns (ListComponentRunsResponse) {
-    option (google.api.http) = {
-      get: "/v1beta/pipeline-runs/{pipeline_run_id}/component-runs"
-    };
+    option (google.api.http) = {get: "/v1beta/pipeline-runs/{pipeline_run_id}/component-runs"};
     option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_operation) = {tags: "Trigger"};
   }
 }