Opus 4.7 1M context model option missing from /model picker after 2.1.133 upgrade

Summary

After upgrading to Claude Code 2.1.133, the Opus 4.7 1M token context model option no longer appears in the /model picker. Previously the picker showed a distinct entry for the 1M context variant alongside the standard Opus 4.7 entry; now only a single "Opus" option is shown.

Environment

• Claude Code version: 2.1.133
• OS: Windows 11 Enterprise (10.0.26100)
• Shell: bash

Expected behavior

Be able to select the Opus 4.7 1M context window variant from the /model picker, or have a documented way to opt into it (env var, settings.json field, model ID).

Actual behavior

Only a single "Opus" entry is shown in /model. No visible option for the 1M context variant.

Notes

The v2.1.128 changelog mentions the model picker was updated to collapse duplicate Opus 4.7 entries. It looks like the 1M variant may have been folded into that consolidation rather than intentionally removed. If it's still accessible via a model ID or config setting, documenting that would help; otherwise restoring the picker entry would be appreciated.