webui: add model information dialog to router mode (#20600)

* webui: add model information dialog to router mode

* webui: add "Available models" section header in model list

* webui: remove nested scrollbar from chat template in model info dialog

* chore: update webui build output

* feat: UI improvements

* refactor: Cleaner rendering + UI docs

* chore: update webui build output

---------

Co-authored-by: Aleksander Grygier <aleksander.grygier@gmail.com>

tools/server/webui/src/lib/components/app/actions/ActionIcon.svelte

@@ -11,7 +11,7 @@
 		iconSize?: string;
 		class?: string;
 		disabled?: boolean;
-		onclick: () => void;
+		onclick: (e?: MouseEvent) => void;
 		'aria-label'?: string;
 	}
 

tools/server/webui/src/lib/components/app/dialogs/DialogModelInformation.svelte

@@ -5,21 +5,38 @@
 	import { serverStore } from '$lib/stores/server.svelte';
 	import { modelsStore, modelOptions, modelsLoading } from '$lib/stores/models.svelte';
 	import { formatFileSize, formatParameters, formatNumber } from '$lib/utils';
+	import type { ApiLlamaCppServerProps } from '$lib/types';
 
 	interface Props {
 		open?: boolean;
 		onOpenChange?: (open: boolean) => void;
+		// when set, fetch props from the child process (router mode)
+		modelId?: string | null;
 	}
 
-	let { open = $bindable(), onOpenChange }: Props = $props();
+	let { open = $bindable(), onOpenChange, modelId = null }: Props = $props();
 
-	let serverProps = $derived(serverStore.props);
-	let modelName = $derived(modelsStore.singleModelName);
+	let isRouter = $derived(serverStore.isRouterMode);
+
+	// per-model props fetched from the child process
+	let routerModelProps = $state<ApiLlamaCppServerProps | null>(null);
+	let isLoadingRouterProps = $state(false);
+
+	// in router mode use per-model props, otherwise use global props
+	let serverProps = $derived(isRouter && modelId ? routerModelProps : serverStore.props);
+
+	let modelName = $derived(isRouter && modelId ? modelId : modelsStore.singleModelName);
 	let models = $derived(modelOptions());
 	let isLoadingModels = $derived(modelsLoading());
 
-	// Get the first model for single-model mode display
-	let firstModel = $derived(models[0] ?? null);
+	// in router mode, find the model option matching modelId
+	// in single mode, use the first model as before
+	let firstModel = $derived.by(() => {
+		if (isRouter && modelId) {
+			return models.find((m) => m.model === modelId) ?? null;
+		}
+		return models[0] ?? null;
+	});
 
 	// Get modalities from modelStore using the model ID from the first model
 	let modalities = $derived.by(() => {
@@ -33,10 +50,31 @@
 			modelsStore.fetch();
 		}
 	});
+
+	// fetch per-model props from child process when dialog opens in router mode
+	$effect(() => {
+		if (open && isRouter && modelId) {
+			isLoadingRouterProps = true;
+			modelsStore
+				.fetchModelProps(modelId)
+				.then((props) => {
+					routerModelProps = props;
+				})
+				.catch(() => {
+					routerModelProps = null;
+				})
+				.finally(() => {
+					isLoadingRouterProps = false;
+				});
+		}
+		if (!open) {
+			routerModelProps = null;
+		}
+	});
 </script>
 
 <Dialog.Root bind:open {onOpenChange}>
-	<Dialog.Content class="@container z-9999 !max-w-[60rem] max-w-full">
+	<Dialog.Content class="@container z-9999 !max-h-[80dvh] !max-w-[60rem] max-w-full">
 		<style>
 			@container (max-width: 56rem) {
 				.resizable-text-container {
@@ -52,7 +90,7 @@
 		</Dialog.Header>
 
 		<div class="space-y-6 py-4">
-			{#if isLoadingModels}
+			{#if isLoadingModels || isLoadingRouterProps}
 				<div class="flex items-center justify-center py-8">
 					<div class="text-sm text-muted-foreground">Loading model information...</div>
 				</div>
@@ -212,7 +250,7 @@
 									<Table.Cell class="align-middle font-medium">Chat Template</Table.Cell>
 
 									<Table.Cell class="py-10">
-										<div class="max-h-120 overflow-y-auto rounded-md bg-muted p-4">
+										<div class="rounded-md bg-muted p-4">
 											<pre
 												class="font-mono text-xs whitespace-pre-wrap">{serverProps.chat_template}</pre>
 										</div>

tools/server/webui/src/lib/components/app/models/ModelsSelector.svelte

@@ -1,6 +1,5 @@
 <script lang="ts">
 	import { onMount } from 'svelte';
-	import { SvelteMap } from 'svelte/reactivity';
 	import { ChevronDown, Loader2, Package } from '@lucide/svelte';
 	import * as DropdownMenu from '$lib/components/ui/dropdown-menu';
 	import * as Tooltip from '$lib/components/ui/tooltip';
@@ -19,9 +18,11 @@
 		DialogModelInformation,
 		DropdownMenuSearchable,
 		ModelId,
+		ModelsSelectorList,
 		ModelsSelectorOption
 	} from '$lib/components/app';
 	import type { ModelOption } from '$lib/types/models';
+	import { filterModelOptions, groupModelOptions, type ModelItem } from './utils';
 
 	interface Props {
 		class?: string;
@@ -73,89 +74,13 @@
 	let searchTerm = $state('');
 	let highlightedIndex = $state<number>(-1);
 
-	let filteredOptions: ModelOption[] = $derived.by(() => {
-		const term = searchTerm.trim().toLowerCase();
-		if (!term) return options;
+	let filteredOptions = $derived(filterModelOptions(options, searchTerm));
 
-		return options.filter(
-			(option) =>
-				option.model.toLowerCase().includes(term) ||
-				option.name?.toLowerCase().includes(term) ||
-				option.aliases?.some((alias: string) => alias.toLowerCase().includes(term)) ||
-				option.tags?.some((tag: string) => tag.toLowerCase().includes(term))
-		);
-	});
-
-	let groupedFilteredOptions = $derived.by(() => {
-		const favIds = modelsStore.favouriteModelIds;
-		const result: {
-			orgName: string | null;
-			isFavouritesGroup: boolean;
-			isLoadedGroup: boolean;
-			items: { option: ModelOption; flatIndex: number }[];
-		}[] = [];
-
-		// Loaded models group (top)
-		const loadedItems: { option: ModelOption; flatIndex: number }[] = [];
-		for (let i = 0; i < filteredOptions.length; i++) {
-			if (modelsStore.isModelLoaded(filteredOptions[i].model)) {
-				loadedItems.push({ option: filteredOptions[i], flatIndex: i });
-			}
-		}
-
-		if (loadedItems.length > 0) {
-			result.push({
-				orgName: null,
-				isFavouritesGroup: false,
-				isLoadedGroup: true,
-				items: loadedItems
-			});
-		}
-
-		// Favourites group
-		const loadedModelIds = new Set(loadedItems.map((item) => item.option.model));
-		const favItems: { option: ModelOption; flatIndex: number }[] = [];
-		for (let i = 0; i < filteredOptions.length; i++) {
-			if (favIds.has(filteredOptions[i].model) && !loadedModelIds.has(filteredOptions[i].model)) {
-				favItems.push({ option: filteredOptions[i], flatIndex: i });
-			}
-		}
-
-		if (favItems.length > 0) {
-			result.push({
-				orgName: null,
-				isFavouritesGroup: true,
-				isLoadedGroup: false,
-				items: favItems
-			});
-		}
-
-		// Org groups (excluding loaded and favourites)
-		const orgGroups = new SvelteMap<string, { option: ModelOption; flatIndex: number }[]>();
-		for (let i = 0; i < filteredOptions.length; i++) {
-			const option = filteredOptions[i];
-
-			if (loadedModelIds.has(option.model) || favIds.has(option.model)) continue;
-
-			const orgName = option.parsedId?.orgName ?? null;
-			const key = orgName ?? '';
-
-			if (!orgGroups.has(key)) orgGroups.set(key, []);
-
-			orgGroups.get(key)!.push({ option, flatIndex: i });
-		}
-
-		for (const [orgName, items] of orgGroups) {
-			result.push({
-				orgName: orgName || null,
-				isFavouritesGroup: false,
-				isLoadedGroup: false,
-				items
-			});
-		}
-
-		return result;
-	});
+	let groupedFilteredOptions = $derived(
+		groupModelOptions(filteredOptions, modelsStore.favouriteModelIds, (m) =>
+			modelsStore.isModelLoaded(m)
+		)
+	);
 
 	$effect(() => {
 		void searchTerm;
@@ -164,6 +89,12 @@
 
 	let isOpen = $state(false);
 	let showModelDialog = $state(false);
+	let infoModelId = $state<string | null>(null);
+
+	function handleInfoClick(modelName: string) {
+		infoModelId = modelName;
+		showModelDialog = true;
+	}
 
 	onMount(() => {
 		modelsStore.fetch().catch((error) => {
@@ -418,45 +349,39 @@
 								<p class="px-4 py-3 text-sm text-muted-foreground">No models found.</p>
 							{/if}
 
-							{#each groupedFilteredOptions as group (group.isLoadedGroup ? '__loaded__' : group.isFavouritesGroup ? '__favourites__' : group.orgName)}
-								{#if group.isLoadedGroup}
-									<p class="px-2 py-2 text-xs font-semibold text-muted-foreground/60 select-none">
-										Loaded models
-									</p>
-								{:else if group.isFavouritesGroup}
-									<p class="px-2 py-2 text-xs font-semibold text-muted-foreground/60 select-none">
-										Favourite models
-									</p>
-								{:else if group.orgName}
-									<p
-										class="px-2 py-2 text-xs font-semibold text-muted-foreground/60 select-none [&:not(:first-child)]:mt-2"
-									>
-										{group.orgName}
-									</p>
-								{/if}
+							{#snippet modelOption(item: ModelItem, showOrgName: boolean)}
+								{@const { option, flatIndex } = item}
+								{@const isSelected = currentModel === option.model || activeId === option.id}
+								{@const isHighlighted = flatIndex === highlightedIndex}
+								{@const isFav = modelsStore.favouriteModelIds.has(option.model)}
 
-								{#each group.items as { option, flatIndex } (group.isLoadedGroup ? `loaded-${option.id}` : group.isFavouritesGroup ? `fav-${option.id}` : option.id)}
-									{@const isSelected = currentModel === option.model || activeId === option.id}
-									{@const isHighlighted = flatIndex === highlightedIndex}
-									{@const isFav = modelsStore.favouriteModelIds.has(option.model)}
+								<ModelsSelectorOption
+									{option}
+									{isSelected}
+									{isHighlighted}
+									{isFav}
+									{showOrgName}
+									onSelect={handleSelect}
+									onInfoClick={handleInfoClick}
+									onMouseEnter={() => (highlightedIndex = flatIndex)}
+									onKeyDown={(e) => {
+										if (e.key === KeyboardKey.ENTER || e.key === KeyboardKey.SPACE) {
+											e.preventDefault();
+											handleSelect(option.id);
+										}
+									}}
+								/>
+							{/snippet}
 
-									<ModelsSelectorOption
-										{option}
-										{isSelected}
-										{isHighlighted}
-										{isFav}
-										showOrgName={group.isFavouritesGroup || group.isLoadedGroup}
-										onSelect={handleSelect}
-										onMouseEnter={() => (highlightedIndex = flatIndex)}
-										onKeyDown={(e) => {
-											if (e.key === KeyboardKey.ENTER || e.key === KeyboardKey.SPACE) {
-												e.preventDefault();
-												handleSelect(option.id);
-											}
-										}}
-									/>
-								{/each}
-							{/each}
+							<ModelsSelectorList
+								groups={groupedFilteredOptions}
+								{currentModel}
+								{activeId}
+								sectionHeaderClass="my-1.5 px-2 py-2 text-[13px] font-semibold text-muted-foreground/70 select-none"
+								onSelect={handleSelect}
+								onInfoClick={handleInfoClick}
+								renderOption={modelOption}
+							/>
 						</div>
 					</DropdownMenuSearchable>
 				</DropdownMenu.Content>
@@ -500,6 +425,6 @@
 	{/if}
 </div>
 
-{#if showModelDialog && !isRouter}
-	<DialogModelInformation bind:open={showModelDialog} />
+{#if showModelDialog}
+	<DialogModelInformation bind:open={showModelDialog} modelId={infoModelId} />
 {/if}

tools/server/webui/src/lib/components/app/models/ModelsSelectorList.svelte

@@ -0,0 +1,72 @@
+<script lang="ts">
+	import { modelsStore } from '$lib/stores/models.svelte';
+	import { ModelsSelectorOption } from '$lib/components/app';
+	import type { GroupedModelOptions, ModelItem } from './utils';
+
+	interface Props {
+		groups: GroupedModelOptions;
+		currentModel: string | null;
+		activeId: string | null;
+		sectionHeaderClass?: string;
+		orgHeaderClass?: string;
+		onSelect: (modelId: string) => void;
+		onInfoClick: (modelName: string) => void;
+		renderOption?: import('svelte').Snippet<[ModelItem, boolean]>;
+	}
+
+	let {
+		groups,
+		currentModel,
+		activeId,
+		sectionHeaderClass = 'my-1 px-2 py-2 text-[13px] font-semibold text-muted-foreground/70 select-none',
+		orgHeaderClass = 'px-2 py-2 text-[11px] font-semibold text-muted-foreground/50 select-none [&:not(:first-child)]:mt-1',
+		onSelect,
+		onInfoClick,
+		renderOption
+	}: Props = $props();
+	let render = $derived(renderOption ?? defaultOption);
+</script>
+
+{#snippet defaultOption(item: ModelItem, showOrgName: boolean)}
+	{@const { option } = item}
+	{@const isSelected = currentModel === option.model || activeId === option.id}
+	{@const isFav = modelsStore.favouriteModelIds.has(option.model)}
+
+	<ModelsSelectorOption
+		{option}
+		{isSelected}
+		isHighlighted={false}
+		{isFav}
+		{showOrgName}
+		{onSelect}
+		{onInfoClick}
+		onMouseEnter={() => {}}
+		onKeyDown={() => {}}
+	/>
+{/snippet}
+
+{#if groups.loaded.length > 0}
+	<p class={sectionHeaderClass}>Loaded models</p>
+	{#each groups.loaded as item (`loaded-${item.option.id}`)}
+		{@render render(item, true)}
+	{/each}
+{/if}
+
+{#if groups.favourites.length > 0}
+	<p class={sectionHeaderClass}>Favourite models</p>
+	{#each groups.favourites as item (`fav-${item.option.id}`)}
+		{@render render(item, true)}
+	{/each}
+{/if}
+
+{#if groups.available.length > 0}
+	<p class={sectionHeaderClass}>Available models</p>
+	{#each groups.available as group (group.orgName)}
+		{#if group.orgName}
+			<p class={orgHeaderClass}>{group.orgName}</p>
+		{/if}
+		{#each group.items as item (item.option.id)}
+			{@render render(item, false)}
+		{/each}
+	{/each}
+{/if}

tools/server/webui/src/lib/components/app/models/ModelsSelectorOption.svelte

@@ -1,5 +1,14 @@
 <script lang="ts">
-	import { CircleAlert, Heart, HeartOff, Loader2, Power, PowerOff, RotateCw } from '@lucide/svelte';
+	import {
+		CircleAlert,
+		Heart,
+		HeartOff,
+		Info,
+		Loader2,
+		Power,
+		PowerOff,
+		RotateCw
+	} from '@lucide/svelte';
 	import { cn } from '$lib/components/ui/utils';
 	import { ActionIcon, ModelId } from '$lib/components/app';
 	import type { ModelOption } from '$lib/types/models';
@@ -15,6 +24,7 @@
 		onSelect: (modelId: string) => void;
 		onMouseEnter: () => void;
 		onKeyDown: (e: KeyboardEvent) => void;
+		onInfoClick?: (modelName: string) => void;
 	}
 
 	let {
@@ -25,7 +35,8 @@
 		showOrgName = false,
 		onSelect,
 		onMouseEnter,
-		onKeyDown
+		onKeyDown,
+		onInfoClick
 	}: Props = $props();
 
 	let currentRouterModels = $derived(routerModels());
@@ -63,11 +74,11 @@
 		class="flex-1"
 	/>
 
-	<div class="flex shrink-0 items-center gap-2.5">
+	<div class="flex shrink-0 items-center gap-1">
 		<!-- svelte-ignore a11y_no_static_element_interactions -->
 		<!-- svelte-ignore a11y_click_events_have_key_events -->
 		<div
-			class="pointer-events-none flex w-4 items-center justify-center pl-2 opacity-0 group-hover:pointer-events-auto group-hover:opacity-100"
+			class="pointer-events-none flex items-center justify-center gap-0.75 pl-2 opacity-0 group-hover:pointer-events-auto group-hover:opacity-100"
 			onclick={(e) => e.stopPropagation()}
 		>
 			{#if isFav}
@@ -87,7 +98,19 @@
 					onclick={() => modelsStore.toggleFavourite(option.model)}
 				/>
 			{/if}
+
+			<!-- info button: only shown when model is loaded and callback is provided -->
+			{#if isLoaded && onInfoClick}
+				<ActionIcon
+					iconSize="h-2.5 w-2.5"
+					icon={Info}
+					tooltip="Model information"
+					class="h-3 w-3 hover:text-foreground"
+					onclick={() => onInfoClick(option.model)}
+				/>
+			{/if}
 		</div>
+
 		{#if isLoading}
 			<Loader2 class="h-4 w-4 animate-spin text-muted-foreground" />
 		{:else if isFailed}

tools/server/webui/src/lib/components/app/models/ModelsSelectorSheet.svelte

@@ -1,6 +1,5 @@
 <script lang="ts">
 	import { onMount } from 'svelte';
-	import { SvelteMap } from 'svelte/reactivity';
 	import { ChevronDown, Loader2, Package } from '@lucide/svelte';
 	import * as Sheet from '$lib/components/ui/sheet';
 	import { cn } from '$lib/components/ui/utils';
@@ -15,11 +14,12 @@
 	import { isRouterMode } from '$lib/stores/server.svelte';
 	import {
 		DialogModelInformation,
+		ModelsSelectorList,
 		SearchInput,
-		TruncatedText,
-		ModelsSelectorOption
+		TruncatedText
 	} from '$lib/components/app';
 	import type { ModelOption } from '$lib/types/models';
+	import { filterModelOptions, groupModelOptions } from './utils';
 
 	interface Props {
 		class?: string;
@@ -73,85 +73,22 @@
 
 	let searchTerm = $state('');
 
-	let filteredOptions: ModelOption[] = $derived.by(() => {
-		const term = searchTerm.trim().toLowerCase();
-		if (!term) return options;
+	let filteredOptions = $derived(filterModelOptions(options, searchTerm));
 
-		return options.filter(
-			(option) =>
-				option.model.toLowerCase().includes(term) ||
-				option.name?.toLowerCase().includes(term) ||
-				option.aliases?.some((alias: string) => alias.toLowerCase().includes(term)) ||
-				option.tags?.some((tag: string) => tag.toLowerCase().includes(term))
-		);
-	});
-
-	let groupedFilteredOptions = $derived.by(() => {
-		const favIds = modelsStore.favouriteModelIds;
-		const result: {
-			orgName: string | null;
-			isFavouritesGroup: boolean;
-			isLoadedGroup: boolean;
-			items: { option: ModelOption; flatIndex: number }[];
-		}[] = [];
-
-		// Loaded models group (top)
-		const loadedItems: { option: ModelOption; flatIndex: number }[] = [];
-		for (let i = 0; i < filteredOptions.length; i++) {
-			if (modelsStore.isModelLoaded(filteredOptions[i].model)) {
-				loadedItems.push({ option: filteredOptions[i], flatIndex: i });
-			}
-		}
-		if (loadedItems.length > 0) {
-			result.push({
-				orgName: null,
-				isFavouritesGroup: false,
-				isLoadedGroup: true,
-				items: loadedItems
-			});
-		}
-
-		// Favourites group
-		const loadedModelIds = new Set(loadedItems.map((item) => item.option.model));
-		const favItems: { option: ModelOption; flatIndex: number }[] = [];
-		for (let i = 0; i < filteredOptions.length; i++) {
-			if (favIds.has(filteredOptions[i].model) && !loadedModelIds.has(filteredOptions[i].model)) {
-				favItems.push({ option: filteredOptions[i], flatIndex: i });
-			}
-		}
-		if (favItems.length > 0) {
-			result.push({
-				orgName: null,
-				isFavouritesGroup: true,
-				isLoadedGroup: false,
-				items: favItems
-			});
-		}
-
-		// Org groups (excluding loaded and favourites)
-		const orgGroups = new SvelteMap<string, { option: ModelOption; flatIndex: number }[]>();
-		for (let i = 0; i < filteredOptions.length; i++) {
-			const option = filteredOptions[i];
-			if (loadedModelIds.has(option.model) || favIds.has(option.model)) continue;
-			const orgName = option.parsedId?.orgName ?? null;
-			const key = orgName ?? '';
-			if (!orgGroups.has(key)) orgGroups.set(key, []);
-			orgGroups.get(key)!.push({ option, flatIndex: i });
-		}
-		for (const [orgName, items] of orgGroups) {
-			result.push({
-				orgName: orgName || null,
-				isFavouritesGroup: false,
-				isLoadedGroup: false,
-				items
-			});
-		}
-
-		return result;
-	});
+	let groupedFilteredOptions = $derived(
+		groupModelOptions(filteredOptions, modelsStore.favouriteModelIds, (m) =>
+			modelsStore.isModelLoaded(m)
+		)
+	);
 
 	let sheetOpen = $state(false);
 	let showModelDialog = $state(false);
+	let infoModelId = $state<string | null>(null);
+
+	function handleInfoClick(modelName: string) {
+		infoModelId = modelName;
+		showModelDialog = true;
+	}
 
 	onMount(() => {
 		modelsStore.fetch().catch((error) => {
@@ -339,38 +276,15 @@
 								<p class="px-3 py-3 text-center text-sm text-muted-foreground">No models found.</p>
 							{/if}
 
-							{#each groupedFilteredOptions as group (group.isLoadedGroup ? '__loaded__' : group.isFavouritesGroup ? '__favourites__' : group.orgName)}
-								{#if group.isLoadedGroup}
-									<p class="px-2 py-2 text-xs font-semibold text-muted-foreground/60 select-none">
-										Loaded models
-									</p>
-								{:else if group.isFavouritesGroup}
-									<p class="px-2 py-2 text-xs font-semibold text-muted-foreground/60 select-none">
-										Favourite models
-									</p>
-								{:else if group.orgName}
-									<p
-										class="px-2 py-2 text-xs font-semibold text-muted-foreground/60 select-none [&:not(:first-child)]:mt-2"
-									>
-										{group.orgName}
-									</p>
-								{/if}
-
-								{#each group.items as { option } (group.isLoadedGroup ? `loaded-${option.id}` : group.isFavouritesGroup ? `fav-${option.id}` : option.id)}
-									{@const isSelected = currentModel === option.model || activeId === option.id}
-									{@const isFav = modelsStore.favouriteModelIds.has(option.model)}
-									<ModelsSelectorOption
-										{option}
-										{isSelected}
-										isHighlighted={false}
-										{isFav}
-										showOrgName={group.isFavouritesGroup || group.isLoadedGroup}
-										onSelect={handleSelect}
-										onMouseEnter={() => {}}
-										onKeyDown={() => {}}
-									/>
-								{/each}
-							{/each}
+							<ModelsSelectorList
+								groups={groupedFilteredOptions}
+								{currentModel}
+								{activeId}
+								sectionHeaderClass="px-2 py-2 text-xs font-semibold text-muted-foreground/60 select-none"
+								orgHeaderClass="px-2 py-2 text-xs font-semibold text-muted-foreground/60 select-none [&:not(:first-child)]:mt-2"
+								onSelect={handleSelect}
+								onInfoClick={handleInfoClick}
+							/>
 						</div>
 					</div>
 				</Sheet.Content>
@@ -403,6 +317,6 @@
 	{/if}
 </div>
 
-{#if showModelDialog && !isRouter}
-	<DialogModelInformation bind:open={showModelDialog} />
+{#if showModelDialog}
+	<DialogModelInformation bind:open={showModelDialog} modelId={infoModelId} />
 {/if}

tools/server/webui/src/lib/components/app/models/index.ts

@@ -44,6 +44,27 @@
  */
 export { default as ModelsSelector } from './ModelsSelector.svelte';
 
+/**
+ * **ModelsSelectorList** - Grouped model options list
+ *
+ * Renders grouped model options (loaded, favourites, available) with section
+ * headers and org subgroups. Shared between ModelsSelector and ModelsSelectorSheet
+ * to avoid template duplication.
+ *
+ * Accepts an optional `renderOption` snippet to customize how each option is
+ * rendered (e.g., to add keyboard navigation or highlighting).
+ */
+export { default as ModelsSelectorList } from './ModelsSelectorList.svelte';
+
+/**
+ * **ModelsSelectorOption** - Single model option row
+ *
+ * Renders a single model option with selection state, favourite toggle,
+ * load/unload actions, status indicators, and an info button.
+ * Used inside ModelsSelectorList or directly in custom render snippets.
+ */
+export { default as ModelsSelectorOption } from './ModelsSelectorOption.svelte';
+
 /**
  * **ModelsSelectorSheet** - Mobile model selection sheet
  *
@@ -80,5 +101,12 @@ export { default as ModelsSelectorSheet } from './ModelsSelectorSheet.svelte';
  * ```
  */
 export { default as ModelBadge } from './ModelBadge.svelte';
+
+/**
+ * **ModelId** - Parsed model identifier display
+ *
+ * Displays a model ID with optional org name, parameter badges, quantization,
+ * aliases, and tags. Supports raw mode to show the unprocessed model name.
+ * Respects the user's `showRawModelNames` setting.
+ */
 export { default as ModelId } from './ModelId.svelte';
-export { default as ModelsSelectorOption } from './ModelsSelectorOption.svelte';

tools/server/webui/src/lib/components/app/models/utils.ts

@@ -0,0 +1,75 @@
+import { SvelteMap } from 'svelte/reactivity';
+import type { ModelOption } from '$lib/types/models';
+
+export interface ModelItem {
+	option: ModelOption;
+	flatIndex: number;
+}
+
+export interface OrgGroup {
+	orgName: string | null;
+	items: ModelItem[];
+}
+
+export interface GroupedModelOptions {
+	loaded: ModelItem[];
+	favourites: ModelItem[];
+	available: OrgGroup[];
+}
+
+export function filterModelOptions(options: ModelOption[], searchTerm: string): ModelOption[] {
+	const term = searchTerm.trim().toLowerCase();
+	if (!term) return options;
+
+	return options.filter(
+		(option) =>
+			option.model.toLowerCase().includes(term) ||
+			option.name?.toLowerCase().includes(term) ||
+			option.aliases?.some((alias: string) => alias.toLowerCase().includes(term)) ||
+			option.tags?.some((tag: string) => tag.toLowerCase().includes(term))
+	);
+}
+
+export function groupModelOptions(
+	filteredOptions: ModelOption[],
+	favouriteIds: Set<string>,
+	isModelLoaded: (model: string) => boolean
+): GroupedModelOptions {
+	// Loaded models
+	const loaded: ModelItem[] = [];
+	for (let i = 0; i < filteredOptions.length; i++) {
+		if (isModelLoaded(filteredOptions[i].model)) {
+			loaded.push({ option: filteredOptions[i], flatIndex: i });
+		}
+	}
+
+	// Favourites (excluding loaded)
+	const loadedModelIds = new Set(loaded.map((item) => item.option.model));
+	const favourites: ModelItem[] = [];
+	for (let i = 0; i < filteredOptions.length; i++) {
+		if (
+			favouriteIds.has(filteredOptions[i].model) &&
+			!loadedModelIds.has(filteredOptions[i].model)
+		) {
+			favourites.push({ option: filteredOptions[i], flatIndex: i });
+		}
+	}
+
+	// Available models grouped by org (excluding loaded and favourites)
+	const available: OrgGroup[] = [];
+	const orgGroups = new SvelteMap<string, ModelItem[]>();
+	for (let i = 0; i < filteredOptions.length; i++) {
+		const option = filteredOptions[i];
+		if (loadedModelIds.has(option.model) || favouriteIds.has(option.model)) continue;
+
+		const key = option.parsedId?.orgName ?? '';
+		if (!orgGroups.has(key)) orgGroups.set(key, []);
+		orgGroups.get(key)!.push({ option, flatIndex: i });
+	}
+
+	for (const [orgName, items] of orgGroups) {
+		available.push({ orgName: orgName || null, items });
+	}
+
+	return { loaded, favourites, available };
+}