I’ve started using different models for different stages.
GPT mostly for product direction and positioning discussions.
Codex for implementation-heavy changes and large refactors.
v0 more for landing page structure / UI iteration.
I still find product judgment and SEO decisions require a lot of manual thinking though.
Approvals, handoffs, trust, compliance, collaboration, history, distribution, decision-making.
The file is often just the transport layer.