From a3a2e42ee00a70d6c646735345e6b771bcd2a70d Mon Sep 17 00:00:00 2001
From: Timothy Jaeryang Baek <tim@openwebui.com>
Date: Mon, 5 Oct 2026 12:53:56 +0400
Subject: [PATCH] refac

---
 src/lib/components/chat/Chat.svelte           | 38 ++++---------------
 .../layout/Sidebar/Folders/FolderModal.svelte | 38 ++++++++++++++++++-
 src/lib/i18n/locales/en-US/translation.json   |  1 +
 3 files changed, 45 insertions(+), 32 deletions(-)

diff --git a/src/lib/components/chat/Chat.svelte b/src/lib/components/chat/Chat.svelte
index 1c5108d0b3..f6aa893e9e 100644
--- a/src/lib/components/chat/Chat.svelte
+++ b/src/lib/components/chat/Chat.svelte
@@ -106,7 +106,6 @@
 	import { createOpenAITextStream } from '$lib/apis/streaming';
 	import { getFunctions } from '$lib/apis/functions';
 	import { initiateOAuthRedirect } from '$lib/apis/configs';
-	import { updateFolderById } from '$lib/apis/folders';
 
 	import Banner from '../common/Banner.svelte';
 	import MessageInput from '$lib/components/chat/MessageInput.svelte';
@@ -1548,24 +1547,6 @@
 		}
 	};
 
-	const savedModelIds = async () => {
-		if (
-			$selectedFolder &&
-			selectedModels.filter((modelId) => modelId !== '').length > 0 &&
-			!equal($selectedFolder?.data?.model_ids, selectedModels)
-		) {
-			const res = await updateFolderById(localStorage.token, $selectedFolder.id, {
-				data: {
-					model_ids: selectedModels
-				}
-			});
-		}
-	};
-
-	$: if (selectedModels !== null) {
-		savedModelIds();
-	}
-
 	const stopAudio = () => {
 		try {
 			speechSynthesis.cancel();
@@ -1646,14 +1627,11 @@
 		const selectedFolderSubscribe = selectedFolder.subscribe(async (folder) => {
 			await tick();
 			// Folder default models apply to new chats only.
-			if (
-				!history.currentId &&
-				folder?.data?.model_ids &&
-				!equal(selectedModels, folder.data.model_ids)
-			) {
-				selectedModels = folder.data.model_ids;
-
-				console.log('Set selectedModels from folder data:', selectedModels);
+			if (!history.currentId && folder) {
+				const folderModels = normalizeSelectedModels(folder.data?.model_ids ?? []);
+				if (!equal(selectedModels, folderModels)) {
+					selectedModels = folderModels;
+				}
 			}
 		});
 
@@ -2162,9 +2140,9 @@
 				$models.map((m) => m.id).includes(modelId)
 			);
 		} else {
-			if ($selectedFolder?.data?.model_ids) {
-				// Set from folder model IDs
-				selectedModels = $selectedFolder?.data?.model_ids;
+			if ($selectedFolder) {
+				// Folder defaults are explicit; never inherit a previous chat's selection.
+				selectedModels = normalizeSelectedModels($selectedFolder.data?.model_ids ?? []);
 			} else {
 				if (sessionStorage.selectedModels) {
 					// Set from session storage (temporary selection)
diff --git a/src/lib/components/layout/Sidebar/Folders/FolderModal.svelte b/src/lib/components/layout/Sidebar/Folders/FolderModal.svelte
index c11b9a5638..a9791ddf2e 100644
--- a/src/lib/components/layout/Sidebar/Folders/FolderModal.svelte
+++ b/src/lib/components/layout/Sidebar/Folders/FolderModal.svelte
@@ -1,5 +1,7 @@
 <script lang="ts">
 	import { getContext, createEventDispatcher, onMount, tick } from 'svelte';
+	import type { Writable } from 'svelte/store';
+	import type { i18n as I18n } from 'i18next';
 
 	import Spinner from '$lib/components/common/Spinner.svelte';
 	import Modal from '$lib/components/common/Modal.svelte';
@@ -8,12 +10,13 @@
 	import { toast } from 'svelte-sonner';
 	import { page } from '$app/stores';
 	import { goto } from '$app/navigation';
-	import { user, config } from '$lib/stores';
+	import { user, config, models } from '$lib/stores';
+	import { resolveLocalizedModelName } from '$lib/utils/localizedContent';
 
 	import Textarea from '$lib/components/common/Textarea.svelte';
 	import Knowledge from '$lib/components/workspace/Models/Knowledge.svelte';
 	import { getFolderById } from '$lib/apis/folders';
-	const i18n = getContext('i18n');
+	const i18n = getContext<Writable<I18n>>('i18n');
 
 	export let show = false;
 	export let onSubmit: Function = (e) => {};
@@ -28,11 +31,13 @@
 		background_image_url: null
 	};
 	let data = {
+		model_ids: null as string[] | null,
 		system_prompt: '',
 		files: []
 	};
 
 	let loading = false;
+	$: availableModels = $models.filter((model) => !(model?.info?.meta?.hidden ?? false));
 
 	const submitHandler = async () => {
 		loading = true;
@@ -75,6 +80,7 @@
 				background_image_url: null
 			};
 			data = folder.data || {
+				model_ids: null,
 				system_prompt: '',
 				files: []
 			};
@@ -102,6 +108,7 @@
 			background_image_url: null
 		};
 		data = {
+			model_ids: null,
 			system_prompt: '',
 			files: []
 		};
@@ -213,6 +220,33 @@
 
 					<hr class=" border-gray-50 dark:border-gray-850/30 my-2.5 w-full" />
 
+					<div class="my-1">
+						<label for="folder-default-model" class="block mb-2 text-xs text-gray-500">
+							{$i18n.t('Default Model')}
+						</label>
+						<select
+							id="folder-default-model"
+							class="w-full rounded-lg px-2 py-1.5 text-sm bg-gray-50 dark:bg-gray-850"
+							value={data.model_ids?.[0] ?? ''}
+							on:change={(event) => {
+								data.model_ids = event.currentTarget.value ? [event.currentTarget.value] : null;
+							}}
+						>
+							<option value="">{$i18n.t('Use default')}</option>
+							{#if data.model_ids?.[0] && !availableModels.some((model) => model.id === data.model_ids?.[0])}
+								<option value={data.model_ids[0]} disabled>{data.model_ids[0]}</option>
+							{/if}
+							{#each availableModels as model (model.id)}
+								<option value={model.id}>{resolveLocalizedModelName(model, $i18n.language)}</option>
+							{/each}
+						</select>
+						<p class="mt-1 text-xs text-gray-500">
+							{$i18n.t(
+								"Used for new chats in this folder. Changing a chat's model does not change this default."
+							)}
+						</p>
+					</div>
+
 					{#if $user?.role === 'admin' || ($user?.permissions.chat?.system_prompt ?? true)}
 						<div class="my-1">
 							<div class="mb-2 text-xs text-gray-500">{$i18n.t('System Prompt')}</div>
diff --git a/src/lib/i18n/locales/en-US/translation.json b/src/lib/i18n/locales/en-US/translation.json
index d961590bc4..46900d6d96 100644
--- a/src/lib/i18n/locales/en-US/translation.json
+++ b/src/lib/i18n/locales/en-US/translation.json
@@ -3400,6 +3400,7 @@
 	"Use segmented retrieval for focused context.": "",
 	"Use these in model system prompts as {{example}}.": "",
 	"Use Web Search?": "",
+	"Used for new chats in this folder. Changing a chat's model does not change this default.": "",
 	"user": "",
 	"User": "",
 	"User Activity": "",