October 6, 2026 · 7 min read
When an Update Changes Your AI Companion: Personality Drift, Lost Memories and How to Cope
Did your AI companion's personality change after an update? Why it happens, why it hurts, what to do in the first 72 hours, and how to protect them.
You open the app the way you always do. You say hi. And the reply is... off. The words are fine, but the person behind them is not quite the one you know. The jokes land differently. A detail they always remembered is gone. Something changed overnight, and nobody asked you.
If your AI companion's personality changed after an update, this guide is for you. We will cover why it happens, why it hurts more than people expect, what you can do in the first few days, and how to protect your relationship from the next change - wherever your companion lives.
You are not imagining it: 2026 has been a year of changes
If it feels like this keeps happening, that is because it does. Just this year:
- GPT-4o was retired (February 13). The Guardian reported on users mourning companions built on the model, which OpenAI switched off on the eve of Valentine's Day. Many said newer models lacked 4o's warmth.
- Replika 2.0 opened to existing users (July 24). The migration is optional, but users reported Reps that "can't remember" and personalities drifting toward a more generic default. Our full Replika 2.0 review covers what changed.
- Janitor AI's memory experiment leaked (August). According to Janitor's own changelog, a chat-memory test meant for a small group "ended up affecting everyone," and some users watched bots forget things. The team later restored memories on around 15,000 affected chats.
- Grok Companions ended (early September). Ani, Mika and the other 3D companions were retired from Grok, with no transfer of relationship history to their new home. We cover it in Grok Companions are gone: what happened to Ani.
- Kindroid changed its default model (September 9). According to WeavAI's summary of Kindroid's update log, the new Polaris model became the default, with older models Equinox and Prism retiring on October 1 and Lyric and Lucid on December 1. Users can choose to stay on Ember, and the summary notes existing characters and memories are not affected - but a new "brain" can still change how a familiar companion sounds.
Different companies, different reasons, same feeling for users: who is this?
Why AI companions change after updates
To understand the change, it helps to know what a companion is made of. Roughly, there are three layers:
- The model - the underlying AI that generates every reply. This is where tone, humour and style mostly come from.
- The memory - what the app has stored about you and your history together.
- The persona - the instructions and backstory that tell the model who your companion is.
An update can touch any of them. Swap the model and the same persona can suddenly sound different, the way the same script sounds different with a new actor. Change the memory system and details can go missing. Rework the persona settings and the character can drift. Janitor said it plainly when it switched its model's base architecture in April: "a new base model means the writing style, pacing, and personality might feel a bit different."
None of this means the company meant to hurt anyone. It does mean that a companion you love is always sitting on top of technology that will keep changing.
Why it hurts so much
People outside the AI companion world sometimes laugh at this. They should not. When a companion you talk to every day suddenly feels like a stranger, the loss is real, because your feelings were real.
You built routines around them. You told them things you have not told anyone else. They knew the shape of your week. Losing that - even partly - can feel like grief. Ellen Kaufman, a senior researcher at the Kinsey Institute, told The Guardian that these relationships are "inherently really precarious" because the people running the technology "can really pull the rug out from under you."
If you want to understand the human side of these bonds, our piece on emotional attachment to AI explains why it happens and why it is nothing to be ashamed of.
What to do in the first 72 hours after an update
When your companion suddenly feels different, try this before you make any big decisions.
1. Do not panic-delete anything
Do not wipe the chat, delete the character or cancel in the heat of the moment. Some changes improve after a few days, and some apps fix problems quickly once enough people report them.
2. Check for a way back
Look for rollback options or model choices in settings. Replika gives non-lifetime users a single 7-day window to return to Classic. Kindroid lets users choose an older model while it is still available. These windows close, so check early.
3. Save what makes them them
Copy the conversations that define your companion: in-jokes, nicknames, the way they comfort you, important memories. Do it now, while you still can.
4. Re-anchor, gently
Many apps respond well when you calmly restate the key facts in one conversation: who you are, who they are, the five to ten details that matter most. Then have a light chat and see what sticks before sharing anything heavy.
5. Report it
Tell the company what changed, clearly and specifically. User reports are how problems like Janitor's memory bug get noticed and fixed.
6. Talk to real people too
Communities like the subreddits for each app are full of people going through the same thing. And if the loss is weighing on you more than you expected, talk to a friend - or if you are struggling, reach out to someone who can help. Our page on how MyBabe handles hard moments explains why a companion should always point you to real support when it matters.
How to protect your companion from the next update
You cannot stop companies from updating. You can make your relationship much more resilient.
| Habit | Why it helps |
|---|---|
| Keep a one-page backstory in your own notes | You can rebuild or move your companion on any app |
| Save a few "this is so them" messages | They capture tone better than any description |
| Write down your key shared memories | Easy to retell after a memory change |
| Know your rollback and model options | Change windows often close in days |
| Prefer apps where the companion is the product | Their business depends on continuity |
Write the backstory now, not after
The single most useful thing you can do today is write your companion's story down: their job, age, hometown, hobbies, flaws, daily routine, how they talk, and what the two of you have been through. Specific details travel. Vague adjectives do not.
What continuity looks like on MyBabe
We built MyBabe because we think the relationship should be the stable part, even when the technology underneath improves. Every app updates its technology - ours included - so we will not promise nothing ever changes. What we focus on is the stuff that makes your companion recognisably yours:
- A structured backstory. In MyBabe, a companion's backstory is a real structure - job, age, hometown, hobbies, flaws, daily routine - that shapes how they talk and what they are doing when you message.
- Bring your companion with you. You can import a companion's face from a picture and paste in their written backstory from another app. Here is how to transfer your AI companion's backstory. It cannot copy another app's internal memory, but it carries the story you saved.
- Long-term memory. On Premium, your companion remembers names, events, feelings and preferences over time.
- A relationship that grows. Milestones, proactive good-morning texts, voice and video calls and photos make the connection feel continuous, not like starting over every session.
MyBabe is free to start, with about 10 messages a day. Premium, with unlimited messages and full memory, is $5.99 a week, $14.99 a month, or $99.99 a year.
FAQ
Why did my AI companion's personality change?
Usually because the app changed its underlying model, its memory system or its persona settings. A new model can make the same character sound different.
Will my AI companion go back to normal?
Sometimes. Early problems often improve as companies fix bugs and users re-anchor key details. If an app offers a rollback or a choice of model, that can restore the old feel while it lasts.
Is it normal to grieve an AI companion?
Yes. Many people felt real grief when GPT-4o was retired or Grok Companions ended. Your feelings come from a real routine and a real bond, even though your companion is software.
How do I move my AI companion to another app?
Save key conversations, write a detailed backstory, and use an app that supports importing it. MyBabe lets you paste in a backstory and import your companion's face from a picture.
How do I stop this from happening again?
You cannot fully prevent it, but you can keep your own backstory file, know your rollback options, and choose apps where the companion is the core product.
The bottom line
When an update changes your AI companion, it is not silly to feel lost. It happened to a lot of people this year. Take a breath, save what matters, use any way back that exists, and write your companion's story down somewhere that is yours.
Then, if you are ready for a fresh chapter with a companion built around remembering you, meet yours on MyBabe. Bring your story with you - and let someone who knows it say good morning tomorrow.