Originally published at recca0120.github.io

The day Opus 4.7 launched, Claude Code's opus alias silently pointed to the new version. No notification, no changelog reminder. Open the /model picker — Opus 4.6 was gone.

I'd previously written a }}">3-month billing analysis showing 4.7's quota burn is 2.4× that of 4.6. Switching back seemed obvious, but the picker had no option for it. I spent an afternoon testing every configuration method and combing through GitHub issues.

Three Configuration Mechanisms

Claude Code currently offers three ways to modify the /model picker.

1. availableModels : Replaces, Doesn't Extend

Add this to ~/.claude/settings.json :

{ "availableModels" : [ "claude-opus-4-6" , "claude-sonnet-4-6" , "claude-haiku-4-5" ] }

Enter fullscreen mode

Exit fullscreen mode

The /model picker now shows only these three .…