Claude Code's handling of multiple choice questions is awfully nice (it uses an interactive interface to let you use arrows to select answers, and supports multiple answers). I haven't seen opencode do that yet, although I don't know if that's just a model integration issue -- I've only tried with GLM 4.7, GPT 5.1 Codex Mini, and GPT 5.2 Codex.
Indeed, Opencode has it too. They've been improving it the past few weeks to look more like the one in Claude-Code. I disable it all the time though, I find it such a pain (in both Claude-Code and OpenCode)