This allows users to branch a conversation at any message point, creating a new, independent thread from that spot while preserving the original dialogue. Users can explore different directions, test alternative prompts, or compare responses side by side without losing or overwriting the original chat.
It works by hovering over a message, selecting the three-dot menu, and choosing "Branch conversation," enabling seamless multitasking within a single chat environment.
EDIT: At least it works with the web interface, I don't know if it will work in the ChatGPT on phone and desktop, yet.
P.S.: No idea if it will work in the App or in other ways, yet.