[BUG] Unusual statistics token spike issue.

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

One day, when I was starting up Claude, on the startup grid with your tokens, messages with the windows app, I saw that my tokens on there were 358 BILLION! I obviously do not think I even had this many, I literally had under 1 billion yesterday.

<img width="390" height="66" alt="Image" src="https://github.com/user-attachments/assets/a4ba9f1d-c96b-4497-aef3-977a0991623d" />

What Should Happen?

My visible tokenns used should not spike

Error Messages/Logs

Steps to Reproduce

So, I don't know how to replicate this bug, I think it is a issue on Anthropic's backend.

Claude Model

Not sure / Multiple models

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

Version 2.16120.0 (801c07)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

None