fix(coding-agent): prioritize provider matches in model selector

closes #5892

packages/coding-agent/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Fixed
+
+- Fixed `/model` selector search to rank exact provider-prefixed matches before proxy-provider model ID matches ([#5892](https://github.com/earendil-works/pi/issues/5892)).
+
 ## [0.79.8] - 2026-06-19
 
 ### New Features

packages/coding-agent/src/modes/interactive/components/model-selector.ts

@@ -11,7 +11,7 @@ import {
 } from "@earendil-works/pi-tui";
 import type { ModelRegistry } from "../../../core/model-registry.ts";
 import type { SettingsManager } from "../../../core/settings-manager.ts";
-import { getModelSearchText } from "../model-search.ts";
+import { getModelSelectorSearchText } from "../model-search.ts";
 import { theme } from "../theme/theme.ts";
 import { DynamicBorder } from "./dynamic-border.ts";
 import { keyHint } from "./keybinding-hints.ts";
@@ -219,7 +219,7 @@ export class ModelSelectorComponent extends Container implements Focusable {
 	private filterModels(query: string): void {
 		this.filteredModels = query
 			? fuzzyFilter(this.activeModels, query, ({ id, provider, model }) =>
-					getModelSearchText({ id, provider, name: model.name }),
+					getModelSelectorSearchText({ id, provider, name: model.name }),
 				)
 			: this.activeModels;
 		this.selectedIndex = Math.min(this.selectedIndex, Math.max(0, this.filteredModels.length - 1));

packages/coding-agent/src/modes/interactive/model-search.ts

@@ -9,3 +9,13 @@ export function getModelSearchText(item: ModelSearchItem): string {
 	const name = item.name ? ` ${item.name}` : "";
 	return `${id} ${provider} ${provider}/${id} ${provider} ${id}${name}`;
 }
+
+/**
+ * The /model selector search should rank exact provider-prefixed queries before proxy-provider IDs
+ * like openrouter/openai/gpt-5, so keep the bare model ID out of the leading position.
+ */
+export function getModelSelectorSearchText(item: ModelSearchItem): string {
+	const { id, provider } = item;
+	const name = item.name ? ` ${item.name}` : "";
+	return `${provider} ${provider}/${id} ${provider} ${id}${name}`;
+}