[BUG] Sonnet 4.6 quota consumption significantly increased after Opus 4.7 release (April 16)

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?

Sonnet 4.6 quota consumption significantly increased after Opus 4.7 release (April 16)

What Should Happen?

Sonnet 4.6 quota consumption significantly increased after Opus 4.7 release (April 16)

Error Messages/Logs

Steps to Reproduce

Sonnet 4.6 quota consumption significantly increased after Opus 4.7 release (April 16)

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude 1.3109.0 (35cbf6) 2026-04-16T20:32:01.000Z

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_