Please fix version 3.20.17 with Grok 4.5 High burning tokens like crazy

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Start any chat with Grok 4.5 High and see that it burns tokens like h*ll in version
Version: 3.20.17 (system setup)
VS Code Extension API: 1.128.0
Commit: 0c32194e3fb5ffaced9fb36430b860ec301e1fc0
Date: 2026-09-12T03:16:10.634Z
Layout: IDE
Build Type: Stable
Release Track: Default
Electron: 42.10.0
Chromium: 148.0.7778.280
Node.js: 24.18.1
V8: 14.8.178.38-electron.0
xterm.js: 6.1.0-beta.291
OS: Windows_NT x64 10.0.26200

See that it burns millions of extra tokens like crazy and hallucinates also most of the times.
This behaviour is new since a couple of days now. Please fix ASAP

2

Hi there!

We detected that this may be a bug report, so we’ve moved your post to the Bug Reports category.

To help us investigate and fix this faster, could you edit your original post to include the details from the template below?

Bug Report Template - Click to expand

Where does the bug appear (feature/product)?

  • Editor, Tab & Chat (autocomplete, Composer, in-editor agent)
  • Terminal & commands
  • Models, pricing & API keys (availability, Auto/Max, BYOK/Bedrock)
  • MCP & tools
  • Cloud Agents & Automations (cursor.com/agents, scheduled/event)
  • BugBot & Code Review
  • Cursor CLI
  • Cursor Mobile
  • Remote (SSH / Dev Containers / WSL)
  • Account, billing & login
  • Something else…

Describe the Bug
A clear and concise description of what the bug is.

Steps to Reproduce
How can you reproduce this bug? We have a much better chance at fixing issues if we can reproduce them!

  1. …
  2. …
  3. …

Expected Behavior
What is meant to happen here that isn’t working correctly?

Screenshots / Screen Recordings
If applicable, attach images or videos (.jpg, .png, .gif, .mp4, .mov)

Operating System

  • Windows 10/11
  • MacOS
  • Linux

Version Information

  • For Cursor IDE: Menu → About Cursor → Copy
  • For Cursor CLI: Run agent about in your terminal
IDE:
Version: 2.xx.x
VSCode Version: 1.105.1
Commit: ......

CLI:
CLI Version 2026.01.17-d239e66

For AI issues: which model did you use?
Model name (e.g., Sonnet 4, Tab…)

For AI issues: add Request ID with privacy disabled
Request ID: f9a7046a-279b-47e5-ab48-6e8dc12daba1
For Background Agent issues, also post the ID: bc-…

Additional Information
Add any other context about the problem here.

Does this stop you from using Cursor?

  • Yes - Cursor is unusable
  • Sometimes - I can sometimes use Cursor
  • No - Cursor works, but with this issue

The more details you provide, the easier it is for us to reproduce and fix the issue. Thanks!

5

when posting the bug these questions were not displayed.

Grok 4.5 High is becoming 4.6 now which is almost not usable…

8

Hey @Someguy, thanks for the report.

We checked Grok 4.5 High usage across versions and 3.20.17 isn’t using more tokens than earlier builds. To look at your specific case, grab a request ID from a heavy chat (click the … at the top right of the chat, then Copy Request ID) and paste it here. If your Cursor login email differs from your forum one, tell me which to check.

Quick tip meanwhile: in Agent mode every tool call re-sends the whole conversation, so long multi-step chats pile up millions of tokens (mostly cheap cached reads). Starting a fresh chat per task cuts that a lot.

And Grok 4.5 is still selectable in Settings → Models, so it isn’t being swapped to 4.6 on you.