Regain Access To Claude Opus 4.6 And Opus 4.5 In Claude Code CLI

Since the Claude Opus 4.7 release, some Claude Code users have reported degraded performance and want to revert to Opus 4.6 or Opus 4.5. I've benchmarked the differences across models if you want the numbers: Claude Opus 4.5 vs Opus 4.6 vs Opus 4.7 vs Sonnet 4.6 and Claude Opus 4.6 vs Opus 4.7 Effort Levels And Prompt Steering Benchmarks.Here’s how you can go back to Claude Opus 4.6 in your Claude Code CLI /model selection. You can still do it via command line method, pass —-model flag with claude-opus-4-6 or claude-opus-4-6[1m]. However, being able to do it via /model selection might be preferred. The following three config file environmental variables need to be set in ~/.claude/settings.json config file as per official documentation. You can only set the variables once, so you can only readd one custom model back.Claude Opus 4.6 1m model selection via Claude Code CLI /modelClaude Opus 4.6 1m model /context display~/.claude/settings.json config fileFor Claude Opus 4.6 1m token model…