claude-code - 💡(How to fix) Fix [BUG] API Error: Extra usage is required for 1M context · run /extra-usage to enable, or /model to switch to standard context

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Error Message

API Error: Extra usage is required for 1M context · run /extra-usage to enable, or /model to switch to standard context

Code Example

API Error: Extra usage is required for 1M context · run /extra-usage to enable, or /model to switch to standard context
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Preflight Checklist

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

What's Wrong?

I have Pro Plan, €50 monthly limit of extra usage, used only €17. /extra-usage enabled Sonnet 4.6 1M Still got this error.

What Should Happen?

Error shouldn't occur.

Error Messages/Logs

API Error: Extra usage is required for 1M context · run /extra-usage to enable, or /model to switch to standard context

Steps to Reproduce

As described above. Update doesn't help (I'm on the tip) logout / login doesn't help

I don't have this error under Opus - but I need just Sonnet 1M

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

No response

Claude Code Version

2.1.139

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

<img width="1170" height="184" alt="Image" src="https://github.com/user-attachments/assets/c826e517-9828-494c-97a6-f3db236d5a11" />

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