For directed coding (implementing an already specified plan) or asking questions about a codebase I use 5.3 codex with medium reasoning effort. It is relatively quick feeling.
I like Sonnet 4.6 a lot too at medium reasoning effort, but at least in Cursor it is sometimes quite slow because it will start "thinking" for a long time.
I like Sonnet 4.6 a lot too at medium reasoning effort, but at least in Cursor it is sometimes quite slow because it will start "thinking" for a long time.