diff --git a/core/src/main/java/com/netflix/conductor/model/TaskModel.java b/core/src/main/java/com/netflix/conductor/model/TaskModel.java
index d41640766c..57071099df 100644
--- a/core/src/main/java/com/netflix/conductor/model/TaskModel.java
+++ b/core/src/main/java/com/netflix/conductor/model/TaskModel.java
@@ -25,6 +25,7 @@
 import com.netflix.conductor.common.metadata.workflow.WorkflowTask;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonProperty;
 import com.google.protobuf.Any;
 
 public class TaskModel {
@@ -69,8 +70,6 @@ public boolean isRetriable() {
 
     private Status status;
 
-    private Map<String, Object> inputData = new HashMap<>();
-
     private String referenceTaskName;
 
     private int retryCount;
@@ -119,8 +118,6 @@ public boolean isRetriable() {
 
     private String workerId;
 
-    private Map<String, Object> outputData = new HashMap<>();
-
     private WorkflowTask workflowTask;
 
     private String domain;
@@ -159,6 +156,10 @@ public boolean isRetriable() {
 
     @JsonIgnore private Map<String, Object> outputPayload = new HashMap<>();
 
+    @JsonIgnore private Map<String, Object> inputData = new HashMap<>();
+
+    @JsonIgnore private Map<String, Object> outputData = new HashMap<>();
+
     public String getTaskType() {
         return taskType;
     }
@@ -175,10 +176,12 @@ public void setStatus(Status status) {
         this.status = status;
     }
 
+    @JsonIgnore
     public Map<String, Object> getInputData() {
         return externalInputPayloadStoragePath != null ? inputPayload : inputData;
     }
 
+    @JsonIgnore
     public void setInputData(Map<String, Object> inputData) {
         if (inputData == null) {
             inputData = new HashMap<>();
@@ -186,6 +189,20 @@ public void setInputData(Map<String, Object> inputData) {
         this.inputData = inputData;
     }
 
+    /** @deprecated Used only for JSON serialization and deserialization. */
+    @JsonProperty("inputData")
+    @Deprecated
+    public void setRawInputData(Map<String, Object> inputData) {
+        setInputData(inputData);
+    }
+
+    /** @deprecated Used only for JSON serialization and deserialization. */
+    @JsonProperty("inputData")
+    @Deprecated
+    public Map<String, Object> getRawInputData() {
+        return inputData;
+    }
+
     public String getReferenceTaskName() {
         return referenceTaskName;
     }
@@ -365,10 +382,12 @@ public void setWorkerId(String workerId) {
         this.workerId = workerId;
     }
 
+    @JsonIgnore
     public Map<String, Object> getOutputData() {
         return externalOutputPayloadStoragePath != null ? outputPayload : outputData;
     }
 
+    @JsonIgnore
     public void setOutputData(Map<String, Object> outputData) {
         if (outputData == null) {
             outputData = new HashMap<>();
@@ -376,6 +395,20 @@ public void setOutputData(Map<String, Object> outputData) {
         this.outputData = outputData;
     }
 
+    /** @deprecated Used only for JSON serialization and deserialization. */
+    @JsonProperty("outputData")
+    @Deprecated
+    public void setRawOutputData(Map<String, Object> inputData) {
+        setOutputData(inputData);
+    }
+
+    /** @deprecated Used only for JSON serialization and deserialization. */
+    @JsonProperty("outputData")
+    @Deprecated
+    public Map<String, Object> getRawOutputData() {
+        return outputData;
+    }
+
     public WorkflowTask getWorkflowTask() {
         return workflowTask;
     }
diff --git a/core/src/main/java/com/netflix/conductor/model/WorkflowModel.java b/core/src/main/java/com/netflix/conductor/model/WorkflowModel.java
index 428e90d93e..5968725970 100644
--- a/core/src/main/java/com/netflix/conductor/model/WorkflowModel.java
+++ b/core/src/main/java/com/netflix/conductor/model/WorkflowModel.java
@@ -22,6 +22,7 @@
 import com.netflix.conductor.common.run.Workflow;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonProperty;
 import com.google.common.base.Preconditions;
 
 public class WorkflowModel {
@@ -63,14 +64,6 @@ public boolean isSuccessful() {
 
     private List<TaskModel> tasks = new LinkedList<>();
 
-    private Map<String, Object> input = new HashMap<>();
-
-    private Map<String, Object> output = new HashMap<>();
-
-    @JsonIgnore private Map<String, Object> inputPayload = new HashMap<>();
-
-    @JsonIgnore private Map<String, Object> outputPayload = new HashMap<>();
-
     private String correlationId;
 
     private String reRunFromWorkflowId;
@@ -110,6 +103,14 @@ public boolean isSuccessful() {
 
     private Status previousStatus;
 
+    @JsonIgnore private Map<String, Object> input = new HashMap<>();
+
+    @JsonIgnore private Map<String, Object> output = new HashMap<>();
+
+    @JsonIgnore private Map<String, Object> inputPayload = new HashMap<>();
+
+    @JsonIgnore private Map<String, Object> outputPayload = new HashMap<>();
+
     public Status getPreviousStatus() {
         return previousStatus;
     }
@@ -170,10 +171,12 @@ public void setTasks(List<TaskModel> tasks) {
         this.tasks = tasks;
     }
 
+    @JsonIgnore
     public Map<String, Object> getInput() {
         return externalInputPayloadStoragePath != null ? inputPayload : input;
     }
 
+    @JsonIgnore
     public void setInput(Map<String, Object> input) {
         if (input == null) {
             input = new HashMap<>();
@@ -181,10 +184,12 @@ public void setInput(Map<String, Object> input) {
         this.input = input;
     }
 
+    @JsonIgnore
     public Map<String, Object> getOutput() {
         return externalOutputPayloadStoragePath != null ? outputPayload : output;
     }
 
+    @JsonIgnore
     public void setOutput(Map<String, Object> output) {
         if (output == null) {
             output = new HashMap<>();
@@ -192,6 +197,34 @@ public void setOutput(Map<String, Object> output) {
         this.output = output;
     }
 
+    /** @deprecated Used only for JSON serialization and deserialization. */
+    @Deprecated
+    @JsonProperty("input")
+    public Map<String, Object> getRawInput() {
+        return input;
+    }
+
+    /** @deprecated Used only for JSON serialization and deserialization. */
+    @Deprecated
+    @JsonProperty("input")
+    public void setRawInput(Map<String, Object> input) {
+        setInput(input);
+    }
+
+    /** @deprecated Used only for JSON serialization and deserialization. */
+    @Deprecated
+    @JsonProperty("output")
+    public Map<String, Object> getRawOutput() {
+        return output;
+    }
+
+    /** @deprecated Used only for JSON serialization and deserialization. */
+    @Deprecated
+    @JsonProperty("output")
+    public void setRawOutput(Map<String, Object> output) {
+        setOutput(output);
+    }
+
     public String getCorrelationId() {
         return correlationId;
     }
diff --git a/core/src/test/groovy/com/netflix/conductor/model/TaskModelSpec.groovy b/core/src/test/groovy/com/netflix/conductor/model/TaskModelSpec.groovy
new file mode 100644
index 0000000000..c95f8edb67
--- /dev/null
+++ b/core/src/test/groovy/com/netflix/conductor/model/TaskModelSpec.groovy
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2022 Netflix, Inc.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+package com.netflix.conductor.model
+
+import com.netflix.conductor.common.config.ObjectMapperProvider
+
+import com.fasterxml.jackson.databind.JsonNode
+import com.fasterxml.jackson.databind.ObjectMapper
+import spock.lang.Specification
+import spock.lang.Subject
+
+class TaskModelSpec extends Specification {
+
+    @Subject
+    TaskModel taskModel
+
+    private static final ObjectMapper objectMapper = new ObjectMapperProvider().getObjectMapper()
+
+    def setup() {
+        taskModel = new TaskModel()
+    }
+
+    def "check inputData serialization"() {
+        given:
+        String path = "task/input/${UUID.randomUUID()}.json"
+        taskModel.addInput(['key1': 'value1', 'key2': 'value2'])
+        taskModel.externalizeInput(path)
+
+        when:
+        def json = objectMapper.writeValueAsString(taskModel)
+        println(json)
+
+        then:
+        json != null
+        JsonNode node = objectMapper.readTree(json)
+        node.path("inputData").isEmpty()
+        node.path("externalInputPayloadStoragePath").isTextual()
+    }
+
+    def "check outputData serialization"() {
+        given:
+        String path = "task/output/${UUID.randomUUID()}.json"
+        taskModel.addOutput(['key1': 'value1', 'key2': 'value2'])
+        taskModel.externalizeOutput(path)
+
+        when:
+        def json = objectMapper.writeValueAsString(taskModel)
+        println(json)
+
+        then:
+        json != null
+        JsonNode node = objectMapper.readTree(json)
+        node.path("outputData").isEmpty()
+        node.path("externalOutputPayloadStoragePath").isTextual()
+    }
+}
diff --git a/core/src/test/groovy/com/netflix/conductor/model/WorkflowModelSpec.groovy b/core/src/test/groovy/com/netflix/conductor/model/WorkflowModelSpec.groovy
new file mode 100644
index 0000000000..3b7763a23b
--- /dev/null
+++ b/core/src/test/groovy/com/netflix/conductor/model/WorkflowModelSpec.groovy
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2022 Netflix, Inc.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+package com.netflix.conductor.model
+
+import com.netflix.conductor.common.config.ObjectMapperProvider
+import com.netflix.conductor.common.metadata.workflow.WorkflowDef
+
+import com.fasterxml.jackson.databind.JsonNode
+import com.fasterxml.jackson.databind.ObjectMapper
+import spock.lang.Specification
+import spock.lang.Subject
+
+class WorkflowModelSpec extends Specification {
+
+    @Subject
+    WorkflowModel workflowModel
+
+    private static final ObjectMapper objectMapper = new ObjectMapperProvider().getObjectMapper()
+
+    def setup() {
+        def workflowDef = new WorkflowDef(name: "test def name", version: 1)
+        workflowModel = new WorkflowModel(workflowDefinition: workflowDef)
+    }
+
+    def "check input serialization"() {
+        given:
+        String path = "task/input/${UUID.randomUUID()}.json"
+        workflowModel.input = ['key1': 'value1', 'key2': 'value2']
+        workflowModel.externalizeInput(path)
+
+        when:
+        def json = objectMapper.writeValueAsString(workflowModel)
+        println(json)
+
+        then:
+        json != null
+        JsonNode node = objectMapper.readTree(json)
+        node.path("input").isEmpty()
+        node.path("externalInputPayloadStoragePath").isTextual()
+    }
+
+    def "check output serialization"() {
+        given:
+        String path = "task/output/${UUID.randomUUID()}.json"
+        workflowModel.output = ['key1': 'value1', 'key2': 'value2']
+        workflowModel.externalizeOutput(path)
+
+        when:
+        def json = objectMapper.writeValueAsString(workflowModel)
+        println(json)
+
+        then:
+        json != null
+        JsonNode node = objectMapper.readTree(json)
+        node.path("output").isEmpty()
+        node.path("externalOutputPayloadStoragePath").isTextual()
+    }
+}