diff --git a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.AssistantMessageItem.g.cs b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.AssistantMessageItem.g.cs
index 970f6c08..7c9272be 100644
--- a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.AssistantMessageItem.g.cs
+++ b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.AssistantMessageItem.g.cs
@@ -28,9 +28,8 @@ public sealed partial class AssistantMessageItem
         /// Unix timestamp (in seconds) for when the item was created.
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("created_at")]
-        [global::System.Text.Json.Serialization.JsonConverter(typeof(global::tryAGI.OpenAI.JsonConverters.UnixTimestampJsonConverter))]
         [global::System.Text.Json.Serialization.JsonRequired]
-        public required global::System.DateTimeOffset CreatedAt { get; set; }
+        public required int CreatedAt { get; set; }
 
         /// <summary>
         /// Identifier of the parent thread.
@@ -89,7 +88,7 @@ public sealed partial class AssistantMessageItem
 #endif
         public AssistantMessageItem(
             string id,
-            global::System.DateTimeOffset createdAt,
+            int createdAt,
             string threadId,
             global::System.Collections.Generic.IList<global::tryAGI.OpenAI.ResponseOutputText> content,
             global::tryAGI.OpenAI.AssistantMessageItemObject @object = global::tryAGI.OpenAI.AssistantMessageItemObject.ChatkitThreadItem,
diff --git a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ChatSessionResource.g.cs b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ChatSessionResource.g.cs
index f1b98b25..862ee94d 100644
--- a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ChatSessionResource.g.cs
+++ b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ChatSessionResource.g.cs
@@ -29,9 +29,8 @@ public sealed partial class ChatSessionResource
         /// Unix timestamp (in seconds) for when the session expires.
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("expires_at")]
-        [global::System.Text.Json.Serialization.JsonConverter(typeof(global::tryAGI.OpenAI.JsonConverters.UnixTimestampJsonConverter))]
         [global::System.Text.Json.Serialization.JsonRequired]
-        public required global::System.DateTimeOffset ExpiresAt { get; set; }
+        public required int ExpiresAt { get; set; }
 
         /// <summary>
         /// Ephemeral client secret that authenticates session requests.
@@ -128,7 +127,7 @@ public sealed partial class ChatSessionResource
 #endif
         public ChatSessionResource(
             string id,
-            global::System.DateTimeOffset expiresAt,
+            int expiresAt,
             string clientSecret,
             global::tryAGI.OpenAI.ChatkitWorkflow workflow,
             string user,
diff --git a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ClientToolCallItem.g.cs b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ClientToolCallItem.g.cs
index becd8f79..031bea41 100644
--- a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ClientToolCallItem.g.cs
+++ b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ClientToolCallItem.g.cs
@@ -28,9 +28,8 @@ public sealed partial class ClientToolCallItem
         /// Unix timestamp (in seconds) for when the item was created.
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("created_at")]
-        [global::System.Text.Json.Serialization.JsonConverter(typeof(global::tryAGI.OpenAI.JsonConverters.UnixTimestampJsonConverter))]
         [global::System.Text.Json.Serialization.JsonRequired]
-        public required global::System.DateTimeOffset CreatedAt { get; set; }
+        public required int CreatedAt { get; set; }
 
         /// <summary>
         /// Identifier of the parent thread.
@@ -127,7 +126,7 @@ public sealed partial class ClientToolCallItem
 #endif
         public ClientToolCallItem(
             string id,
-            global::System.DateTimeOffset createdAt,
+            int createdAt,
             string threadId,
             global::tryAGI.OpenAI.ClientToolCallStatus status,
             string callId,
diff --git a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ExpiresAfterParam.g.cs b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ExpiresAfterParam.g.cs
index 1e7cbe84..813adf57 100644
--- a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ExpiresAfterParam.g.cs
+++ b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ExpiresAfterParam.g.cs
@@ -22,7 +22,7 @@ public sealed partial class ExpiresAfterParam
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("seconds")]
         [global::System.Text.Json.Serialization.JsonRequired]
-        public required int Seconds { get; set; }
+        public required long Seconds { get; set; }
 
         /// <summary>
         /// Additional properties that are not explicitly defined in the schema
@@ -44,7 +44,7 @@ public sealed partial class ExpiresAfterParam
         [global::System.Diagnostics.CodeAnalysis.SetsRequiredMembers]
 #endif
         public ExpiresAfterParam(
-            int seconds,
+            long seconds,
             global::tryAGI.OpenAI.ExpiresAfterParamAnchor anchor = global::tryAGI.OpenAI.ExpiresAfterParamAnchor.CreatedAt)
         {
             this.Anchor = anchor;
diff --git a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.TaskGroupItem.g.cs b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.TaskGroupItem.g.cs
index 4f898bb1..bcfe02a2 100644
--- a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.TaskGroupItem.g.cs
+++ b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.TaskGroupItem.g.cs
@@ -28,9 +28,8 @@ public sealed partial class TaskGroupItem
         /// Unix timestamp (in seconds) for when the item was created.
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("created_at")]
-        [global::System.Text.Json.Serialization.JsonConverter(typeof(global::tryAGI.OpenAI.JsonConverters.UnixTimestampJsonConverter))]
         [global::System.Text.Json.Serialization.JsonRequired]
-        public required global::System.DateTimeOffset CreatedAt { get; set; }
+        public required int CreatedAt { get; set; }
 
         /// <summary>
         /// Identifier of the parent thread.
@@ -89,7 +88,7 @@ public sealed partial class TaskGroupItem
 #endif
         public TaskGroupItem(
             string id,
-            global::System.DateTimeOffset createdAt,
+            int createdAt,
             string threadId,
             global::System.Collections.Generic.IList<global::tryAGI.OpenAI.TaskGroupTask> tasks,
             global::tryAGI.OpenAI.TaskGroupItemObject @object = global::tryAGI.OpenAI.TaskGroupItemObject.ChatkitThreadItem,
diff --git a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.TaskItem.g.cs b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.TaskItem.g.cs
index e4d95562..f233eff0 100644
--- a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.TaskItem.g.cs
+++ b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.TaskItem.g.cs
@@ -28,9 +28,8 @@ public sealed partial class TaskItem
         /// Unix timestamp (in seconds) for when the item was created.
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("created_at")]
-        [global::System.Text.Json.Serialization.JsonConverter(typeof(global::tryAGI.OpenAI.JsonConverters.UnixTimestampJsonConverter))]
         [global::System.Text.Json.Serialization.JsonRequired]
-        public required global::System.DateTimeOffset CreatedAt { get; set; }
+        public required int CreatedAt { get; set; }
 
         /// <summary>
         /// Identifier of the parent thread.
@@ -104,7 +103,7 @@ public sealed partial class TaskItem
 #endif
         public TaskItem(
             string id,
-            global::System.DateTimeOffset createdAt,
+            int createdAt,
             string threadId,
             global::tryAGI.OpenAI.TaskType taskType,
             string? heading,
diff --git a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ThreadResource.g.cs b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ThreadResource.g.cs
index a9210dcd..7696bf6d 100644
--- a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ThreadResource.g.cs
+++ b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.ThreadResource.g.cs
@@ -29,9 +29,8 @@ public sealed partial class ThreadResource
         /// Unix timestamp (in seconds) for when the thread was created.
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("created_at")]
-        [global::System.Text.Json.Serialization.JsonConverter(typeof(global::tryAGI.OpenAI.JsonConverters.UnixTimestampJsonConverter))]
         [global::System.Text.Json.Serialization.JsonRequired]
-        public required global::System.DateTimeOffset CreatedAt { get; set; }
+        public required int CreatedAt { get; set; }
 
         /// <summary>
         /// 
@@ -85,7 +84,7 @@ public sealed partial class ThreadResource
 #endif
         public ThreadResource(
             string id,
-            global::System.DateTimeOffset createdAt,
+            int createdAt,
             global::tryAGI.OpenAI.Status status,
             string user,
             string? title,
diff --git a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.UserMessageItem.g.cs b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.UserMessageItem.g.cs
index 6198fb27..e678b2a2 100644
--- a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.UserMessageItem.g.cs
+++ b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.UserMessageItem.g.cs
@@ -28,9 +28,8 @@ public sealed partial class UserMessageItem
         /// Unix timestamp (in seconds) for when the item was created.
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("created_at")]
-        [global::System.Text.Json.Serialization.JsonConverter(typeof(global::tryAGI.OpenAI.JsonConverters.UnixTimestampJsonConverter))]
         [global::System.Text.Json.Serialization.JsonRequired]
-        public required global::System.DateTimeOffset CreatedAt { get; set; }
+        public required int CreatedAt { get; set; }
 
         /// <summary>
         /// Identifier of the parent thread.
@@ -104,7 +103,7 @@ public sealed partial class UserMessageItem
 #endif
         public UserMessageItem(
             string id,
-            global::System.DateTimeOffset createdAt,
+            int createdAt,
             string threadId,
             global::System.Collections.Generic.IList<global::tryAGI.OpenAI.ContentItem4> content,
             global::System.Collections.Generic.IList<global::tryAGI.OpenAI.Attachment> attachments,
diff --git a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.WidgetMessageItem.g.cs b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.WidgetMessageItem.g.cs
index 3b69427f..f327e1b4 100644
--- a/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.WidgetMessageItem.g.cs
+++ b/src/libs/tryAGI.OpenAI/Generated/tryAGI.OpenAI.Models.WidgetMessageItem.g.cs
@@ -28,9 +28,8 @@ public sealed partial class WidgetMessageItem
         /// Unix timestamp (in seconds) for when the item was created.
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("created_at")]
-        [global::System.Text.Json.Serialization.JsonConverter(typeof(global::tryAGI.OpenAI.JsonConverters.UnixTimestampJsonConverter))]
         [global::System.Text.Json.Serialization.JsonRequired]
-        public required global::System.DateTimeOffset CreatedAt { get; set; }
+        public required int CreatedAt { get; set; }
 
         /// <summary>
         /// Identifier of the parent thread.
@@ -89,7 +88,7 @@ public sealed partial class WidgetMessageItem
 #endif
         public WidgetMessageItem(
             string id,
-            global::System.DateTimeOffset createdAt,
+            int createdAt,
             string threadId,
             string widget,
             global::tryAGI.OpenAI.WidgetMessageItemObject @object = global::tryAGI.OpenAI.WidgetMessageItemObject.ChatkitThreadItem,
diff --git a/src/libs/tryAGI.OpenAI/openapi.yaml b/src/libs/tryAGI.OpenAI/openapi.yaml
index 63e04b30..a5c45b72 100644
--- a/src/libs/tryAGI.OpenAI/openapi.yaml
+++ b/src/libs/tryAGI.OpenAI/openapi.yaml
@@ -78250,6 +78250,7 @@ components:
           x-stainless-const: true
         expires_at:
           type: integer
+          format: unixtime
           description: Unix timestamp (in seconds) for when the session expires.
         client_secret:
           type: string
@@ -78368,6 +78369,7 @@ components:
           type: integer
           maximum: 600
           minimum: 1
+          format: int64
           description: Number of seconds after the anchor when the session expires.
       type: object
       required:
@@ -78545,6 +78547,7 @@ components:
         preview_url:
           anyOf:
             - type: string
+              format: uri
               description: Preview URL for rendering the attachment inline.
             - type: 'null'
       type: object
@@ -78602,6 +78605,7 @@ components:
           x-stainless-const: true
         created_at:
           type: integer
+          format: unixtime
           description: Unix timestamp (in seconds) for when the item was created.
         thread_id:
           type: string
@@ -78695,6 +78699,7 @@ components:
           x-stainless-const: true
         url:
           type: string
+          format: uri
           description: URL referenced by the annotation.
       type: object
       required:
@@ -78763,6 +78768,7 @@ components:
           x-stainless-const: true
         created_at:
           type: integer
+          format: unixtime
           description: Unix timestamp (in seconds) for when the item was created.
         thread_id:
           type: string
@@ -78803,6 +78809,7 @@ components:
           x-stainless-const: true
         created_at:
           type: integer
+          format: unixtime
           description: Unix timestamp (in seconds) for when the item was created.
         thread_id:
           type: string
@@ -78846,6 +78853,7 @@ components:
           x-stainless-const: true
         created_at:
           type: integer
+          format: unixtime
           description: Unix timestamp (in seconds) for when the item was created.
         thread_id:
           type: string
@@ -78909,6 +78917,7 @@ components:
           x-stainless-const: true
         created_at:
           type: integer
+          format: unixtime
           description: Unix timestamp (in seconds) for when the item was created.
         thread_id:
           type: string
@@ -78989,6 +78998,7 @@ components:
           x-stainless-const: true
         created_at:
           type: integer
+          format: unixtime
           description: Unix timestamp (in seconds) for when the item was created.
         thread_id:
           type: string
@@ -79134,6 +79144,7 @@ components:
           x-stainless-const: true
         created_at:
           type: integer
+          format: unixtime
           description: Unix timestamp (in seconds) for when the thread was created.
         title:
           anyOf: