Invalid Model error when attempting to use "@web" tool with Anthropic API token

Bug Reports
1

Describe the Bug

When attempting to use the “@web” shortcut in Cursor with an Anthropic API key set, it blocks chat submission and displays an “Invalid Model” error modal.

Steps to Reproduce

  • Set a valid Anthropic API key with funds in the Cursor settings
  • Select Agent mode in the Chat
  • Select a Claude 4 model (Sonnet or Opus)
  • Type something in the chat and include the “@web” shortcut in the message.
  • Try to submit the chat message.

Expected Behavior

I would expect the chat to use the web tool: Cursor – @Web

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.1.1
VSCode Version: 1.96.2
Commit: f81622395bb52bc30ed251a6299eeaf51ab49110
Date: 2025-06-12T09:07:09.121Z (1 day ago)
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.5.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

2

Hey, thanks for the report. I confirm that this isn’t working. I’ll forward this to the team. As a workaround, you can add something like “Find on the internet” to your request, and it should trigger the search function.