AI Chat History: Read, Search, Move and Delete It

Here is our own proposal for judging any assistant's chat history: the four-verb test. Ask who can read it, search it, move it and delete it, you or only the company that holds it. In our own exports from ChatGPT, Claude and Grok, reading is handed to you as a file, and searching the file, moving it and checking a delete are left to you.

The four verbs, by assistant

"No guide yet" means we have not tested it ourselves, so we do not describe it.

Read: the export is a file, not a transcript

Each assistant will send you your history, and each one packs it differently. Our ChatGPT export was 916 MB and held 1,463 conversations spread over fifteen numbered files. Our Claude export came as seven separate zip parts. Our Grok export was a 357 MB zip in which the conversations were one 10.8 MB file. None of the three publishes a description of the file, so the only way to know a format is to open a real one. We did, and wrote down what we found in the three formats compared and how big a chat history really is.

Search: the step the export leaves out

An export gives you the file and stops there. To find one decision in a thousand conversations you need something that reads the file. The Chat Export Reader does that in your browser, for all three formats at once, and uploads nothing. Search has one trap worth knowing: in our ChatGPT export, 82.1 percent of the indexed chunks were written by the assistant, so a plain search mostly finds its words, not yours. The reader has a switch for searching only what you wrote.

Move: memory moves, conversations need a second step

Moving has two parts that are easy to confuse. The saved memory, the short list of facts ChatGPT keeps about you, can go across with Claude's import. The conversations themselves only leave through the export. Moving ChatGPT history to Claude walks through both. If you want every assistant you use to reach the same history, ModelBrain indexes the export on your computer: ChatGPT, Claude and Grok.

Delete: check what the delete does not reach

Deleting a chat removes it from the assistant. It does not reach copies that already left, such as an export you downloaded earlier, and a memory made from a chat is deleted separately from the chat. The delete guides in the table list what stays behind for each assistant, and the temporary and incognito guides cover the chats that were never meant to be kept.