claude-code - 💡(How to fix) Fix [BUG] New version burns through all tokens in minutes, doesn't allow Opus 4.6 use, doesn't allow downgrade. [1 comments, 2 participants]

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anthropics/claude-code#49562Fetched 2026-04-17 08:37:37
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Error Message

Error Messages/Logs

Fix Action

Fix / Workaround

When I use Claude Code v2.1.112, it uses Max tokens in minutes. 1% per prompt. The prior version could be used for hours, on opus 4.6. The new version doesn't allow you to downgrade to Opus 4.6, it's not in the model list.

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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?

When I use Claude Code v2.1.112, it uses Max tokens in minutes. 1% per prompt. The prior version could be used for hours, on opus 4.6. The new version doesn't allow you to downgrade to Opus 4.6, it's not in the model list.

What Should Happen?

It should allow you to use Opus 4.6, which would use fewer tokens.

Error Messages/Logs

Steps to Reproduce

Install claude code in vs code, leave it on Opus 4.7, and use basic prompts in a new context window. Check usage in Claude max. The session usage goes up by 1% for every single prompt, even very basic ones.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.69

Claude Code Version

2.1.112

Platform

Other

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

No response

extent analysis

TL;DR

Downgrade to Claude Code version 2.1.69, which previously allowed the use of Opus 4.6 and consumed fewer tokens.

Guidance

  • The issue seems to be related to the change in token usage between Claude Code versions 2.1.69 and 2.1.112, specifically with the Opus model.
  • To verify the issue, install version 2.1.69 and check if the token usage returns to the expected rate with Opus 4.6.
  • Since downgrading to Opus 4.6 is not possible in version 2.1.112, exploring other models in the current version that might offer similar efficiency could be a temporary workaround.
  • Consider reaching out to the developers or checking the project's documentation for any plans to reintroduce Opus 4.6 or improve token efficiency in future updates.

Notes

The solution provided is based on the information given and may not be a long-term fix, as it involves downgrading the software. The developers' plans for future updates or patches could address this issue.

Recommendation

Apply workaround: Downgrade to version 2.1.69, as it is the last known version where the desired functionality (using Opus 4.6 with lower token usage) was available.

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