Combos that come from 9Router, directly or through the gateway's 9router provider, are no longer added to Codex's model list; the gateway's own combos keep their plain names. The IDE no longer leaves a config.toml backup behind: turning the setting off already restores the file byte for byte. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HRDGW1LiKcDUZYUdKBoWYW