Anthropic's wants to sell us Claude Code with no model selection at all.

Opus seems to be overly eager of late to 'vibe' out entire solutions and build out things that you didn't ask for.

/goals is helping set the narrative that does it really matter if Sonnet and 3 Haiku agents got you to that end state...eventually...if its what you asked for?

For better or worse Opus is already handing off 80% of its work to background agents of Sonnet, Haiku, and likely a quantized Opus.

Want model selection? Pay for the API.

Just tell it to always use opus for subagents and it does.