Feature
Import your chats from ChatGPT
Bring your history with you. Your best conversations don’t belong locked in one app.
Bring your history with you
Export your data from ChatGPT, upload your conversations.json, and we’ll bring your last 100 chats into just4o.chat—threads, context, and all.
Pick up any conversation exactly where you left off, with the model you choose and the memory that grows with you.
Free tool, Aurora for full import
The migration tool is free: you can parse your export, download chats as files, and create personas from your conversations—no subscription required.
Full importing—bringing your last 100 conversations into your account so they appear in /chat—requires the Aurora plan. Use the migration tool below to get started; Aurora subscribers can complete the import there.
How it works
Request a data export from ChatGPT, grab the conversations.json file, then drag and drop it on our import page.
We parse it, show you what we found, and—with one click—import those conversations into your account (Aurora). They appear in /chat like any other thread. No copy‑paste, no starting over.
Optional extras
Run “Separate” to turn the last 100 conversations into individual text files. Download them as a zip for backup or analysis.
Or select specific chats and run “Create persona”—we’ll analyze them with an LLM and distill a reusable persona (tone, style, preferences) you can attach to new chats. Your old vibe, ready for new conversations.