diff --git a/packages/pi-extension/README.md b/packages/pi-extension/README.md
index 1034ff1..95743e3 100644
--- a/packages/pi-extension/README.md
+++ b/packages/pi-extension/README.md
@@ -142,7 +142,7 @@ pnpm --filter @parallel-web/pi-extension typecheck
 ## Notes
 
 - The extension uses the `parallel-web` TypeScript SDK directly.
-- Search requests use Parallel SDK `basic` mode.
+- Search requests use Parallel SDK `fast` mode.
 - Search requests include `client_model` when Pi has an active model selected.
 - Search and extract requests reuse a generated `session_id` for the life of the current Pi session.
 - The login flow tries to open your browser automatically.
diff --git a/packages/pi-extension/package.json b/packages/pi-extension/package.json
index a900c66..d694a67 100644
--- a/packages/pi-extension/package.json
+++ b/packages/pi-extension/package.json
@@ -17,7 +17,7 @@
     "README.md"
   ],
   "dependencies": {
-    "parallel-web": "0.5.0",
+    "parallel-web": "1.3.0",
     "typebox": "^1.1.37"
   },
   "peerDependencies": {
diff --git a/packages/pi-extension/src/__tests__/parallel-client.test.ts b/packages/pi-extension/src/__tests__/parallel-client.test.ts
new file mode 100644
index 0000000..b59cfda
--- /dev/null
+++ b/packages/pi-extension/src/__tests__/parallel-client.test.ts
@@ -0,0 +1,40 @@
+import { afterEach, describe, expect, it, vi } from 'vitest';
+import { runParallelSearch } from '../parallel-client.js';
+
+afterEach(() => {
+  vi.unstubAllGlobals();
+});
+
+describe('runParallelSearch', () => {
+  it('uses fast mode for interactive Pi searches', async () => {
+    const fetchMock = vi.fn(
+      async () =>
+        new Response(
+          JSON.stringify({
+            search_id: 'search_test',
+            results: [],
+            warnings: null,
+            usage: [],
+          }),
+          {
+            status: 200,
+            headers: { 'content-type': 'application/json' },
+          }
+        )
+    );
+    vi.stubGlobal('fetch', fetchMock);
+
+    await runParallelSearch('test-key', {
+      objective: 'Find current Parallel Search documentation',
+      search_queries: ['Parallel Search modes'],
+    });
+
+    const [url, init] = fetchMock.mock.calls[0]!;
+    expect(url).toBe('https://api.parallel.ai/v1/search');
+    expect(JSON.parse(init?.body as string)).toMatchObject({
+      objective: 'Find current Parallel Search documentation',
+      search_queries: ['Parallel Search modes'],
+      mode: 'fast',
+    });
+  });
+});
diff --git a/packages/pi-extension/src/parallel-client.ts b/packages/pi-extension/src/parallel-client.ts
index 6c242a1..ec74218 100644
--- a/packages/pi-extension/src/parallel-client.ts
+++ b/packages/pi-extension/src/parallel-client.ts
@@ -36,7 +36,7 @@ export async function runParallelSearch(
     {
       objective: input.objective,
       search_queries: input.search_queries,
-      mode: 'advanced',
+      mode: 'fast',
       client_model: input.client_model,
       session_id: input.session_id,
     },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a8838fa..f5b6d7d 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -141,8 +141,8 @@ importers:
         specifier: '>=0.83.0'
         version: 0.84.1(@modelcontextprotocol/sdk@1.30.0(supports-color@7.2.0)(zod@4.3.6))(supports-color@7.2.0)(ws@8.21.3)(zod@4.3.6)
       parallel-web:
-        specifier: 0.5.0
-        version: 0.5.0
+        specifier: 1.3.0
+        version: 1.3.0
       typebox:
         specifier: ^1.1.37
         version: 1.1.37