ChaptersAI

You type a prompt, then branch the conversation at any point to try a different direction, and jump back to the root whenever you want.

That is the core of ChaptersAI, a GPT client for branching chats that suits complex projects and detailed analysis.

Each branch works like a version of the conversation, so you can compare approaches without losing earlier work.

Chats are kept in local browser storage, which keeps them on your machine.

The catch is size: browser storage may max out at around 5mb, so long histories could hit that ceiling.

Pricing needs care too.

ChaptersAI is listed as free and offers a trial, but a subscription is required after 10 messages, and OpenAI API usage is billed separately by OpenAI.

Use it as a way to test the branching idea first.

If you work through long, layered problems with an AI chatbot and keep losing track of earlier turns, this kind of structure is where it helps most.