@DenBo cc 怎么用切回 Opus 4.6 ？ 现在只有 3 种可选：

Select model
Switch between Claude models. Applies to this session and future Claude Code sessions. For other/previous model names, specify with --model.

1. Default (recommended) Opus 4.7 with 1M context Most capable for complex work
2. Sonnet Sonnet 4.6 Best for everyday tasks
3. Haiku Haiku 4.5 Fastest for quick answers

一万年太久，只争朝夕

ai 小白看完了了！