diff --git a/src/vs/workbench/contrib/chat/browser/actions/chatCodeblockActions.ts b/src/vs/workbench/contrib/chat/browser/actions/chatCodeblockActions.ts
index e6f04e259e8..ef21a3d4026 100644
--- a/src/vs/workbench/contrib/chat/browser/actions/chatCodeblockActions.ts
+++ b/src/vs/workbench/contrib/chat/browser/actions/chatCodeblockActions.ts
@@ -31,7 +31,7 @@ import { reviewEdits } from '../../../inlineChat/browser/inlineChatController.js
 import { ITerminalEditorService, ITerminalGroupService, ITerminalService } from '../../../terminal/browser/terminal.js';
 import { ChatContextKeys } from '../../common/chatContextKeys.js';
 import { ChatCopyKind, IChatService } from '../../common/chatService.js';
-import { IChatResponseViewModel, isResponseVM } from '../../common/chatViewModel.js';
+import { IChatRequestViewModel, IChatResponseViewModel, isRequestVM, isResponseVM } from '../../common/chatViewModel.js';
 import { ChatAgentLocation } from '../../common/constants.js';
 import { IChatCodeBlockContextProviderService, IChatWidgetService } from '../chat.js';
 import { DefaultChatTextEditor, ICodeBlockActionContext, ICodeCompareBlockActionContext } from '../codeBlockPart.js';
@@ -152,6 +152,8 @@ export function registerChatCodeBlockActions() {
 
 			if (isResponseVM(context.element)) {
 				const chatService = accessor.get(IChatService);
+				const requestId = context.element.requestId;
+				const request = context.element.session.getItems().find(item => item.id === requestId && isRequestVM(item)) as IChatRequestViewModel | undefined;
 				chatService.notifyUserAction({
 					agentId: context.element.agent?.id,
 					command: context.element.slashCommand?.name,
@@ -165,6 +167,10 @@ export function registerChatCodeBlockActions() {
 						copiedCharacters: context.code.length,
 						totalCharacters: context.code.length,
 						copiedText: context.code,
+						copiedLines: context.code.split('\n').length,
+						languageId: context.languageId,
+						totalLines: context.code.split('\n').length,
+						modelId: request?.modelId ?? ''
 					}
 				});
 			}
@@ -197,7 +203,9 @@ export function registerChatCodeBlockActions() {
 		// Report copy to extensions
 		const chatService = accessor.get(IChatService);
 		const element = context.element as IChatResponseViewModel | undefined;
-		if (element) {
+		if (isResponseVM(element)) {
+			const requestId = element.requestId;
+			const request = element.session.getItems().find(item => item.id === requestId && isRequestVM(item)) as IChatRequestViewModel | undefined;
 			chatService.notifyUserAction({
 				agentId: element.agent?.id,
 				command: element.slashCommand?.name,
@@ -211,6 +219,10 @@ export function registerChatCodeBlockActions() {
 					copiedText,
 					copiedCharacters: copiedText.length,
 					totalCharacters,
+					languageId: context.languageId,
+					totalLines: context.code.split('\n').length,
+					copiedLines: copiedText.split('\n').length,
+					modelId: request?.modelId ?? ''
 				}
 			});
 		}
@@ -336,6 +348,8 @@ export function registerChatCodeBlockActions() {
 			editorService.openEditor({ contents: context.code, languageId: context.languageId, resource: undefined } satisfies IUntitledTextResourceEditorInput);
 
 			if (isResponseVM(context.element)) {
+				const requestId = context.element.requestId;
+				const request = context.element.session.getItems().find(item => item.id === requestId && isRequestVM(item)) as IChatRequestViewModel | undefined;
 				chatService.notifyUserAction({
 					agentId: context.element.agent?.id,
 					command: context.element.slashCommand?.name,
@@ -346,7 +360,10 @@ export function registerChatCodeBlockActions() {
 						kind: 'insert',
 						codeBlockIndex: context.codeBlockIndex,
 						totalCharacters: context.code.length,
-						newFile: true
+						newFile: true,
+						totalLines: context.code.split('\n').length,
+						languageId: context.languageId,
+						modelId: request?.modelId ?? ''
 					}
 				});
 			}
diff --git a/src/vs/workbench/contrib/chat/browser/actions/codeBlockOperations.ts b/src/vs/workbench/contrib/chat/browser/actions/codeBlockOperations.ts
index 80758dba416..b8d78eff163 100644
--- a/src/vs/workbench/contrib/chat/browser/actions/codeBlockOperations.ts
+++ b/src/vs/workbench/contrib/chat/browser/actions/codeBlockOperations.ts
@@ -30,7 +30,7 @@ import { IActiveNotebookEditor, INotebookEditor } from '../../../notebook/browse
 import { CellKind, ICellEditOperation, NOTEBOOK_EDITOR_ID } from '../../../notebook/common/notebookCommon.js';
 import { ICodeMapperCodeBlock, ICodeMapperRequest, ICodeMapperResponse, ICodeMapperService } from '../../common/chatCodeMapperService.js';
 import { ChatUserAction, IChatService } from '../../common/chatService.js';
-import { isResponseVM } from '../../common/chatViewModel.js';
+import { IChatRequestViewModel, isRequestVM, isResponseVM } from '../../common/chatViewModel.js';
 import { ICodeBlockActionContext } from '../codeBlockPart.js';
 import { IQuickInputService } from '../../../../../platform/quickinput/common/quickInput.js';
 import { ILabelService } from '../../../../../platform/label/common/label.js';
@@ -61,11 +61,19 @@ export class InsertCodeBlockOperation {
 				this.notify(localize('insertCodeBlock.noActiveEditor', "To insert the code block, open a code editor or notebook editor and set the cursor at the location where to insert the code block."));
 			}
 		}
-		notifyUserAction(this.chatService, context, {
-			kind: 'insert',
-			codeBlockIndex: context.codeBlockIndex,
-			totalCharacters: context.code.length
-		});
+
+		if (isResponseVM(context.element)) {
+			const requestId = context.element.requestId;
+			const request = context.element.session.getItems().find(item => item.id === requestId && isRequestVM(item)) as IChatRequestViewModel | undefined;
+			notifyUserAction(this.chatService, context, {
+				kind: 'insert',
+				codeBlockIndex: context.codeBlockIndex,
+				totalCharacters: context.code.length,
+				totalLines: context.code.split('\n').length,
+				languageId: context.languageId,
+				modelId: request?.modelId ?? '',
+			});
+		}
 	}
 
 	private async handleNotebookEditor(notebookEditor: IActiveNotebookEditor, codeBlockContext: ICodeBlockActionContext): Promise<boolean> {
@@ -159,13 +167,21 @@ export class ApplyCodeBlockOperation {
 				this.notify(localize('applyCodeBlock.noActiveEditor', "To apply this code block, open a code or notebook editor."));
 			}
 		}
-		notifyUserAction(this.chatService, context, {
-			kind: 'apply',
-			codeBlockIndex: context.codeBlockIndex,
-			totalCharacters: context.code.length,
-			codeMapper: result?.codeMapper,
-			editsProposed: !!result?.editsProposed
-		});
+
+		if (isResponseVM(context.element)) {
+			const requestId = context.element.requestId;
+			const request = context.element.session.getItems().find(item => item.id === requestId && isRequestVM(item)) as IChatRequestViewModel | undefined;
+			notifyUserAction(this.chatService, context, {
+				kind: 'apply',
+				codeBlockIndex: context.codeBlockIndex,
+				totalCharacters: context.code.length,
+				codeMapper: result?.codeMapper,
+				editsProposed: !!result?.editsProposed,
+				totalLines: context.code.split('\n').length,
+				modelId: request?.modelId ?? '',
+				languageId: context.languageId,
+			});
+		}
 	}
 
 	private async evaluateURIToUse(resource: URI | undefined, activeEditorControl: IActiveCodeEditor | undefined): Promise<URI | undefined> {
diff --git a/src/vs/workbench/contrib/chat/common/chatModel.ts b/src/vs/workbench/contrib/chat/common/chatModel.ts
index 67c8c42b4d3..7d6c6783385 100644
--- a/src/vs/workbench/contrib/chat/common/chatModel.ts
+++ b/src/vs/workbench/contrib/chat/common/chatModel.ts
@@ -63,6 +63,7 @@ export interface IChatRequestModel {
 	readonly editedFileEvents?: IChatAgentEditedFileEvent[];
 	shouldBeRemovedOnSend: IChatRequestDisablement | undefined;
 	shouldBeBlocked: boolean;
+	readonly modelId?: string;
 }
 
 export interface IChatTextEditGroupState {
@@ -959,6 +960,7 @@ export interface ISerializableChatRequestData {
 	timestamp?: number;
 	confirmation?: string;
 	editedFileEvents?: IChatAgentEditedFileEvent[];
+	modelId?: string;
 }
 
 export interface IExportableChatData {
@@ -1347,6 +1349,7 @@ export class ChatModel extends Disposable implements IChatModel {
 					restoredId: raw.requestId,
 					confirmation: raw.confirmation,
 					editedFileEvents: raw.editedFileEvents,
+					modelId: raw.modelId,
 				});
 				request.shouldBeRemovedOnSend = raw.isHidden ? { requestId: raw.requestId } : raw.shouldBeRemovedOnSend;
 				if (raw.response || raw.result || (raw as any).responseErrorDetails) {
@@ -1691,6 +1694,7 @@ export class ChatModel extends Disposable implements IChatModel {
 					timestamp: r.timestamp,
 					confirmation: r.confirmation,
 					editedFileEvents: r.editedFileEvents,
+					modelId: r.modelId,
 				};
 			}),
 		};
diff --git a/src/vs/workbench/contrib/chat/common/chatService.ts b/src/vs/workbench/contrib/chat/common/chatService.ts
index b28f8de13fd..22f86179733 100644
--- a/src/vs/workbench/contrib/chat/common/chatService.ts
+++ b/src/vs/workbench/contrib/chat/common/chatService.ts
@@ -369,12 +369,19 @@ export interface IChatCopyAction {
 	copiedCharacters: number;
 	totalCharacters: number;
 	copiedText: string;
+	totalLines: number;
+	copiedLines: number;
+	modelId: string;
+	languageId?: string;
 }
 
 export interface IChatInsertAction {
 	kind: 'insert';
 	codeBlockIndex: number;
 	totalCharacters: number;
+	totalLines: number;
+	languageId?: string;
+	modelId: string;
 	newFile?: boolean;
 }
 
@@ -382,6 +389,9 @@ export interface IChatApplyAction {
 	kind: 'apply';
 	codeBlockIndex: number;
 	totalCharacters: number;
+	totalLines: number;
+	languageId?: string;
+	modelId: string;
 	newFile?: boolean;
 	codeMapper?: string;
 	editsProposed: boolean;
diff --git a/src/vs/workbench/contrib/chat/common/chatViewModel.ts b/src/vs/workbench/contrib/chat/common/chatViewModel.ts
index 9e16743b96b..7e8a95d2f9f 100644
--- a/src/vs/workbench/contrib/chat/common/chatViewModel.ts
+++ b/src/vs/workbench/contrib/chat/common/chatViewModel.ts
@@ -93,6 +93,7 @@ export interface IChatRequestViewModel {
 	readonly slashCommand: IChatAgentCommand | undefined;
 	readonly agentOrSlashCommandDetected: boolean;
 	readonly shouldBeBlocked?: boolean;
+	readonly modelId?: string;
 }
 
 export interface IChatResponseMarkdownRenderData {
@@ -185,6 +186,7 @@ export interface IChatLiveUpdateData {
 export interface IChatResponseViewModel {
 	readonly model: IChatResponseModel;
 	readonly id: string;
+	readonly session: IChatViewModel;
 	readonly sessionId: string;
 	/** This ID updates every time the underlying data changes */
 	readonly dataId: string;
@@ -442,6 +444,10 @@ export class ChatRequestViewModel implements IChatRequestViewModel {
 
 	currentRenderedHeight: number | undefined;
 
+	get modelId() {
+		return this._model.modelId;
+	}
+
 	constructor(
 		private readonly _model: IChatRequestModel,
 	) { }
@@ -569,7 +575,7 @@ export class ChatResponseViewModel extends Disposable implements IChatResponseVi
 	}
 
 	get isLast(): boolean {
-		return this._chatViewModel.getItems().at(-1) === this;
+		return this.session.getItems().at(-1) === this;
 	}
 
 	renderData: IChatResponseRenderData | undefined = undefined;
@@ -608,7 +614,7 @@ export class ChatResponseViewModel extends Disposable implements IChatResponseVi
 
 	constructor(
 		private readonly _model: IChatResponseModel,
-		private readonly _chatViewModel: IChatViewModel,
+		public readonly session: IChatViewModel,
 		@ILogService private readonly logService: ILogService,
 		@IChatAgentNameService private readonly chatAgentNameService: IChatAgentNameService,
 	) {
diff --git a/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_deserialize.0.snap b/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_deserialize.0.snap
index 954291a13fb..e1128cdbe6a 100644
--- a/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_deserialize.0.snap
+++ b/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_deserialize.0.snap
@@ -102,7 +102,8 @@
       codeCitations: [  ],
       timestamp: undefined,
       confirmation: undefined,
-      editedFileEvents: undefined
+      editedFileEvents: undefined,
+      modelId: undefined
     }
   ]
 }
\ No newline at end of file
diff --git a/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_deserialize_with_response.0.snap b/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_deserialize_with_response.0.snap
index eac347edaac..c98aa1128f3 100644
--- a/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_deserialize_with_response.0.snap
+++ b/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_deserialize_with_response.0.snap
@@ -86,7 +86,8 @@
       codeCitations: [  ],
       timestamp: undefined,
       confirmation: undefined,
-      editedFileEvents: undefined
+      editedFileEvents: undefined,
+      modelId: undefined
     }
   ]
 }
\ No newline at end of file
diff --git a/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_serialize.1.snap b/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_serialize.1.snap
index 6c53d43dcbf..0da7b9fc014 100644
--- a/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_serialize.1.snap
+++ b/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_can_serialize.1.snap
@@ -109,7 +109,8 @@
       codeCitations: [  ],
       timestamp: undefined,
       confirmation: undefined,
-      editedFileEvents: undefined
+      editedFileEvents: undefined,
+      modelId: undefined
     },
     {
       requestId: undefined,
@@ -164,7 +165,8 @@
       codeCitations: [  ],
       timestamp: undefined,
       confirmation: undefined,
-      editedFileEvents: undefined
+      editedFileEvents: undefined,
+      modelId: undefined
     }
   ]
 }
\ No newline at end of file
diff --git a/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_sendRequest_fails.0.snap b/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_sendRequest_fails.0.snap
index f6a351338de..664ca7e4c7a 100644
--- a/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_sendRequest_fails.0.snap
+++ b/src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatService_sendRequest_fails.0.snap
@@ -86,7 +86,8 @@
       codeCitations: [  ],
       timestamp: undefined,
       confirmation: undefined,
-      editedFileEvents: undefined
+      editedFileEvents: undefined,
+      modelId: undefined
     }
   ]
 }
\ No newline at end of file
diff --git a/src/vscode-dts/vscode.proposed.chatParticipantAdditions.d.ts b/src/vscode-dts/vscode.proposed.chatParticipantAdditions.d.ts
index 59a9d28699c..369d340afe5 100644
--- a/src/vscode-dts/vscode.proposed.chatParticipantAdditions.d.ts
+++ b/src/vscode-dts/vscode.proposed.chatParticipantAdditions.d.ts
@@ -334,6 +334,10 @@ declare module 'vscode' {
 		copiedCharacters: number;
 		totalCharacters: number;
 		copiedText: string;
+		totalLines: number;
+		copiedLines: number;
+		modelId: string;
+		languageId?: string;
 	}
 
 	export interface ChatInsertAction {
@@ -341,6 +345,9 @@ declare module 'vscode' {
 		kind: 'insert';
 		codeBlockIndex: number;
 		totalCharacters: number;
+		totalLines: number;
+		languageId?: string;
+		modelId: string;
 		newFile?: boolean;
 	}
 
@@ -349,6 +356,9 @@ declare module 'vscode' {
 		kind: 'apply';
 		codeBlockIndex: number;
 		totalCharacters: number;
+		totalLines: number;
+		languageId?: string;
+		modelId: string;
 		newFile?: boolean;
 		codeMapper?: string;
 	}