diff --git a/ChatView/qml/RootItem.qml b/ChatView/qml/RootItem.qml
index 6763f95..a478e28 100644
--- a/ChatView/qml/RootItem.qml
+++ b/ChatView/qml/RootItem.qml
@@ -272,6 +272,7 @@ ChatRootView {
                     id: chatItemInstance
 
                     width: parent.width
+                    chatViewport: chatListView
                     msgModel: root.chatModel.processMessageContent(model.content)
                     messageAttachments: model.attachments
                     messageImages: model.images
diff --git a/ChatView/qml/chatparts/ChatItem.qml b/ChatView/qml/chatparts/ChatItem.qml
index 9aa0ada..ef7774f 100644
--- a/ChatView/qml/chatparts/ChatItem.qml
+++ b/ChatView/qml/chatparts/ChatItem.qml
@@ -30,6 +30,7 @@ Rectangle {
     property int textFontSize: Qt.application.font.pointSize
     property int codeFontSize: Qt.application.font.pointSize
     property int textFormat: 0
+    property Flickable chatViewport: null
 
     property bool isUserMessage: false
     property int messageIndex: -1
@@ -259,6 +260,7 @@ Rectangle {
         language: itemData.language
         codeFontFamily: root.codeFontFamily
         codeFontSize: root.codeFontSize
+        viewport: root.chatViewport
     }
 
     component AttachmentComponent : Rectangle {
diff --git a/ChatView/qml/chatparts/CodeBlock.qml b/ChatView/qml/chatparts/CodeBlock.qml
index f704c6f..cfb5ec2 100644
--- a/ChatView/qml/chatparts/CodeBlock.qml
+++ b/ChatView/qml/chatparts/CodeBlock.qml
@@ -13,6 +13,7 @@ Rectangle {
     property string code: ""
     property string language: ""
     property bool expanded: false
+    property Flickable viewport: null
 
     property alias codeFontFamily: codeText.font.family
     property alias codeFontSize: codeText.font.pointSize
@@ -122,7 +123,16 @@ Rectangle {
         anchors.right: parent.right
         anchors.rightMargin: 5
 
-        y: 5
+        y: {
+            if (!root.expanded || !root.viewport)
+                return 5
+            const flick = root.viewport
+            const topInContent = root.mapToItem(flick.contentItem, 0, 0).y
+            const topInView = topInContent - flick.contentY
+            const desired = topInView < 0 ? (-topInView + 5) : 5
+            const maxY = Math.max(5, root.height - copyButton.height - 5)
+            return Math.max(5, Math.min(desired, maxY))
+        }
         text: qsTr("Copy")
 
         onClicked: {
diff --git a/settings/ConfigurationManager.cpp b/settings/ConfigurationManager.cpp
index 82ace28..b090c63 100644
--- a/settings/ConfigurationManager.cpp
+++ b/settings/ConfigurationManager.cpp
@@ -35,9 +35,9 @@ QVector<AIConfiguration> ConfigurationManager::getPredefinedConfigurations(
 
     AIConfiguration claudeOpus;
     claudeOpus.id = "preset_claude_opus";
-    claudeOpus.name = "Claude Opus 4.6";
+    claudeOpus.name = "Claude Opus 4.7";
     claudeOpus.provider = "Claude";
-    claudeOpus.model = "claude-opus-4-6";
+    claudeOpus.model = "claude-opus-4-7";
     claudeOpus.url = "https://api.anthropic.com";
     claudeOpus.customEndpoint = "";
     claudeOpus.templateName = "Claude";
@@ -101,9 +101,9 @@ QVector<AIConfiguration> ConfigurationManager::getPredefinedConfigurations(
 
     AIConfiguration gpt;
     gpt.id = "preset_gpt";
-    gpt.name = "gpt-5.4";
+    gpt.name = "gpt-5.5";
     gpt.provider = "OpenAI (Responses API)";
-    gpt.model = "gpt-5.4";
+    gpt.model = "gpt-5.5";
     gpt.url = "https://api.openai.com/v1";
     gpt.customEndpoint = "";
     gpt.templateName = "OpenAI Responses";