Auto-“Your message is too long.” But I only send a sentence

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

It work really well only 4 days ago. but after update a new cursor version, now even I only send a sentence without any attachment in auto model, it tell me my message is too long… there must be some bug behind…

Steps to Reproduce

idk, try to use auto and sent a message after your usage in advance models ran out?

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

版本: 1.7.9 (user setup)
提交: 1.99.3
日期: d44e0b8c64929a5174b4bc2b1cb43f1440bac1c0
Electron: 2025-09-25T21:26:04.608Z
ElectronBuildId: 34.5.8
Chromium: undefined
Node.js: 132.0.6834.210
V8: 20.19.1
OS: 13.2.152.41-electron.0

For AI issues: which model did you use?

auto

Does this stop you from using Cursor

Yes - Cursor is unusable

4

Hey, thanks for the report. It looks like a bug in the new version, the “message too long” error shouldn’t trigger on short phrases in auto mode.

Please try:

  • Clear your chat history and start a new conversation
  • Fully restart Cursor
  • Check if any large files are open that might be auto‑included in context
  • See if you have many MCP servers enabled

If that doesn’t help, it’s likely a regression in 1.7.9 that needs a fix. Temporarily roll back to the previous version while the team investigates.

5

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