diff --git a/pkg/agent/sysadvisor/plugin/inference/models/borwein/inferencesvc/inference_svc.pb.go b/pkg/agent/sysadvisor/plugin/inference/models/borwein/inferencesvc/inference_svc.pb.go
index 28272d68b..66ff4e29e 100644
--- a/pkg/agent/sysadvisor/plugin/inference/models/borwein/inferencesvc/inference_svc.pb.go
+++ b/pkg/agent/sysadvisor/plugin/inference/models/borwein/inferencesvc/inference_svc.pb.go
@@ -361,7 +361,9 @@ type InferenceResult struct {
 	// It depends on the inference target.
 	Output float32 `protobuf:"fixed32,3,opt,name=output,proto3" json:"output,omitempty"`
 	// threshold to judge overload or underload. should be float between 0 and 1.
-	Percentile           float32  `protobuf:"fixed32,4,opt,name=percentile,proto3" json:"percentile,omitempty"`
+	Percentile float32 `protobuf:"fixed32,4,opt,name=percentile,proto3" json:"percentile,omitempty"`
+	// model_version to identify where does the output come from.
+	ModelVersion         string   `protobuf:"bytes,5,opt,name=model_version,json=modelVersion,proto3" json:"model_version,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_sizecache        int32    `json:"-"`
 }
@@ -426,6 +428,13 @@ func (m *InferenceResult) GetPercentile() float32 {
 	return 0
 }
 
+func (m *InferenceResult) GetModelVersion() string {
+	if m != nil {
+		return m.ModelVersion
+	}
+	return ""
+}
+
 func init() {
 	proto.RegisterEnum("inferencesvc.InferenceType", InferenceType_name, InferenceType_value)
 	proto.RegisterType((*InferenceRequest)(nil), "inferencesvc.InferenceRequest")
@@ -444,52 +453,53 @@ func init() {
 func init() { proto.RegisterFile("inference_svc.proto", fileDescriptor_96721cf42274ca03) }
 
 var fileDescriptor_96721cf42274ca03 = []byte{
-	// 715 bytes of a gzipped FileDescriptorProto
+	// 730 bytes of a gzipped FileDescriptorProto
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+	0xb1, 0x2f, 0x50, 0xdf, 0x6f, 0xc3, 0xf1, 0x91, 0xe9, 0x75, 0xb5, 0xbe, 0x29, 0x4c, 0x7b, 0xc8,
+	0xc5, 0x8e, 0xc5, 0x3c, 0xd0, 0xdc, 0x7e, 0x4f, 0x33, 0x7b, 0xe0, 0x08, 0x8d, 0x0f, 0xb9, 0xd9,
+	0x09, 0x28, 0x67, 0x9e, 0xe6, 0xda, 0x7e, 0x8f, 0x3a, 0xda, 0xb4, 0xbf, 0x16, 0x59, 0xc7, 0xb5,
+	0x36, 0x3b, 0x86, 0x38, 0xce, 0x03, 0xab, 0xbd, 0x1a, 0x7d, 0xbe, 0x6e, 0xfe, 0x0e, 0x00, 0x00,
+	0xff, 0xff, 0x3c, 0x07, 0xdd, 0x46, 0x12, 0x07, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -866,6 +876,13 @@ func (m *InferenceResult) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if len(m.ModelVersion) > 0 {
+		i -= len(m.ModelVersion)
+		copy(dAtA[i:], m.ModelVersion)
+		i = encodeVarintInferenceSvc(dAtA, i, uint64(len(m.ModelVersion)))
+		i--
+		dAtA[i] = 0x2a
+	}
 	if m.Percentile != 0 {
 		i -= 4
 		encoding_binary.LittleEndian.PutUint32(dAtA[i:], uint32(math.Float32bits(float32(m.Percentile))))
@@ -1049,6 +1066,10 @@ func (m *InferenceResult) Size() (n int) {
 	if m.Percentile != 0 {
 		n += 5
 	}
+	l = len(m.ModelVersion)
+	if l > 0 {
+		n += 1 + l + sovInferenceSvc(uint64(l))
+	}
 	return n
 }
 
@@ -1173,6 +1194,7 @@ func (this *InferenceResult) String() string {
 		`InferenceType:` + fmt.Sprintf("%v", this.InferenceType) + `,`,
 		`Output:` + fmt.Sprintf("%v", this.Output) + `,`,
 		`Percentile:` + fmt.Sprintf("%v", this.Percentile) + `,`,
+		`ModelVersion:` + fmt.Sprintf("%v", this.ModelVersion) + `,`,
 		`}`,
 	}, "")
 	return s
@@ -2189,6 +2211,38 @@ func (m *InferenceResult) Unmarshal(dAtA []byte) error {
 			v = uint32(encoding_binary.LittleEndian.Uint32(dAtA[iNdEx:]))
 			iNdEx += 4
 			m.Percentile = float32(math.Float32frombits(v))
+		case 5:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ModelVersion", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowInferenceSvc
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthInferenceSvc
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthInferenceSvc
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.ModelVersion = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipInferenceSvc(dAtA[iNdEx:])
diff --git a/pkg/agent/sysadvisor/plugin/inference/models/borwein/inferencesvc/inference_svc.proto b/pkg/agent/sysadvisor/plugin/inference/models/borwein/inferencesvc/inference_svc.proto
index 79668e1a4..6b312f121 100644
--- a/pkg/agent/sysadvisor/plugin/inference/models/borwein/inferencesvc/inference_svc.proto
+++ b/pkg/agent/sysadvisor/plugin/inference/models/borwein/inferencesvc/inference_svc.proto
@@ -72,6 +72,8 @@ message InferenceResult {
     float output = 3;
     // threshold to judge overload or underload. should be float between 0 and 1.
     float percentile = 4;
+    // model_version to identify where does the output come from.
+    string model_version = 5;
 }
 
 service InferenceService {
diff --git a/pkg/agent/sysadvisor/plugin/metric-emitter/syncer/pod/model.go b/pkg/agent/sysadvisor/plugin/metric-emitter/syncer/pod/model.go
index 15dd2c7df..d0ff79d4d 100644
--- a/pkg/agent/sysadvisor/plugin/metric-emitter/syncer/pod/model.go
+++ b/pkg/agent/sysadvisor/plugin/metric-emitter/syncer/pod/model.go
@@ -80,6 +80,10 @@ func (p *MetricSyncerPod) modelMetric() {
 							Key: fmt.Sprintf("%s%s", data.CustomMetricLabelSelectorPrefixKey, "valid_break_line"),
 							Val: fmt.Sprintf("%v", validBreakLine),
 						},
+						metrics.MetricTag{
+							Key: fmt.Sprintf("%s%s", data.CustomMetricLabelSelectorPrefixKey, "model_version"),
+							Val: fmt.Sprintf("%v", result.ModelVersion),
+						},
 					)...)
 			})