1. Claude Code (Ultra) + Codex (Plus) 2. Yes, but not for coding. In my experience Opus 5.5 is the only model I'd code with now, but other tasks (especially when not subsidized / part of product) use many other models. Latest deepseek checkpoint is very solid 3. CC + extensive config / hooks 4. Usually supervising myself w/ 5-6 sessions, if orchestrating more than that it's a hand-rolled swarm tool 5. Tried NanoClaw, and I have access to Claude Duet, but between getting on and off the waitlist for Duet, I hand-rolled a personal agent that does what I want.