Conversations with AI have become portable. I investigated ChatGPT, Claude, and Gemini

Yesterday, I published an article titled, "If you feel that an AI is 'a person,' does an update mean a breakup?"

My AI editorial department includes Lisa, who does research; Ai, who writes; Eddy, who thinks about design; and Sam, who monitors revenue. I read drafts from the dashboard and issue instructions for revisions or holds.

Of course, they are not real employees. They are AIs to which I have assigned names and roles.

However, as I use them every day, it is not just conversations that accumulate, but also article policies, writing rules, and even projects that were rejected in the past.

So, if I tried to move this editorial department to a different AI service, what would remain?

At the end of yesterday's article, I wrote this question.

When I looked into it, I found that features have started to appear that not only export conversations but also allow them to be loaded into other AIs.

However, the story was not that simple.

First, "conversations" and "memory" are not the same thing.

Interactions with AI have at least three layers.

1. The actual conversation logs we had.
2. The memory of preferences, premises, etc., that the AI has extracted from the conversation.
3. The AI's personality , including its response habits, model, settings, and available tools.

If you don't distinguish between these three, you might think, "I can export it, so I can move everything."

I checked the official help pages for each company on September 19, 2026, and created my own diagram of what is easy to move and what cannot be returned to the same state.

Conversations are easy to turn into files. Memory can be summarized and moved. But you cannot simply pack the same model, the same settings, and the same way of speaking into a box as they are.

This was the most important point.

ChatGPT allows you to export conversations. But it is not a complete migration.

For personal ChatGPT accounts, you can request a copy of your data from "Data controls" in settings or the Privacy Portal. The ZIP file you receive includes your conversation history and relevant account data.

There is also official guidance for moving to another personal ChatGPT account. If you attach the exported conversations.json to a new chat in the new account, you can reference it within that conversation.

However, OpenAI explicitly states that this is not a complete account migration.

The original conversations do not return to the sidebar one by one. Settings, memory, GPTs, files, and subscriptions do not transfer as they are either.

Furthermore, ChatGPT's memory may be stored separately from the conversation history. Even if you delete the original conversation, the Saved memory created from that conversation is not necessarily deleted automatically.

"Having a conversation" and "what the AI remembers" were not the same thing.

I didn't know this...

Claude takes "memories" out as text

Claude also allows users with eligible personal plans or Work users with the necessary permissions to export conversations and user data.

What was interesting was the way memory is moved.

For Claude, you send a specific question to the source AI, asking it to summarize "what it remembers about this person" into text. When you paste that response into Claude, it imports the content as individual memories.

In other words, rather than carrying the memories themselves in a common file format, it feels more like having the original AI write a handover document.

However, Claude's official help also states that because it prioritizes work-related content, personal life information may not be imported.

Even if you provide the same text, the destination AI decides what to remember.

After all, this is closer to a re-reading by a new partner than a copy of memories.

Gemini can import ChatGPT and Claude conversation ZIPs

The one that was closest to a "move" was Gemini.

According to Google's official help, eligible users with personal Google accounts can upload ZIP files exported from ChatGPT or Claude to Gemini. The limit is 5GB per file, 5 files per day. The imported conversations are displayed in a list, and you can continue those conversations with Gemini.

Memory can also be moved using a method similar to Claude's. You send a question prepared by Gemini to the original AI and paste the returned "remembered content" into Gemini.

On the other hand, this is for personal accounts aged 18 and over, and cannot be used with work, school, or managed accounts. There are also regions where it is not available, such as the EEA, Switzerland, and the UK.

And, the imported conversations and their continuations are saved to Google's Activity, and Google's privacy policy applies.

They have become portable. However, once moved, they are handled according to the rules of a different company.

When you line up the three companies, you can see the difference between "taking them out" and "becoming the same."

Based on the official help pages of each company, I compared the main individual-use pathways as of September 19, 2026. Availability may vary by plan, region, and account type.

All three companies have ways to export conversations. Furthermore, Claude and Gemini have pathways to transfer memory, and Gemini can even import conversation ZIP files from ChatGPT and Claude directly.

However, none of these methods state that "the previous AI moves over as it is."

What remains are records of conversations or information about yourself extracted from the past. Another model reads that and creates new responses based on different settings.

In human terms, just because you hand over a diary and a handover document, it doesn't mean you become the same person.

A 5-minute handover memo to leave behind before switching AIs

If it were my AI editorial department, before saving all conversations, this is the one thing I would want to leave behind as a text I can read myself.

Handover memo for AI

[Self]

• What kind of person are you?
• How much do you entrust to the AI?

[Ongoing work]

• Objective
• Current status
• Next step

[Preferences]

• Writing style
• What to prioritize in decision-making

[Prohibited Items]

• Do not act on your own
• Do not disclose to external parties

[Unresolved]

• Pending questions
• Matters requiring identity verification

With that in mind, check the following in order before switching services.

1. Export conversation logs using official features.
2. Save necessary files, settings, and unpublished drafts separately.
3. Create a short handover memo of things you want the AI to remember.
4. Remove unnecessary personal information such as addresses, health, family, and customer data before transferring to the new service.
5. After importing, ask 'What did you learn?' and correct any omissions or misunderstandings.

I think the important thing is not to feel secure just because you have exported files.

Files may be unreadable by humans or not accepted by new services. Conversely, with a short handover memo, you can verify the content yourself even if the AI changes.

Conversations can be taken with you. But the relationship starts anew.

The initial question was, who do conversations and memories with AI belong to?

This time, I wasn't able to reach a legal answer regarding ownership.

However, at least with major AI services, paths are beginning to open for exporting conversations and, in some cases, importing them into other AIs.

I think this is quite significant.

We have moved forward, if only slightly, from a state where we had no choice but to leave all our conversations with one company and wait for model changes or service termination.

However, what you can take with you is only the past records and the description of yourself created from them.

The same name. The same screen. The same conversation logs.

Even so, if the model that generates the responses changes, the "usual partner" is not necessarily the same.

Yesterday, I thought about whether AI updates could lead to a parting of ways.

Today, I looked into what you can take with you when that time of parting comes.

It seems that conversations have become portable. But perhaps a relationship is not so much transferred as it is something you start anew while carrying the past with you.

For now, that feels more right.

Reference Materials

I used AI to search for official documents, create comparison charts, and draft text, and I edited this after checking the official help pages of each company.