the category, straight
AI companions with real long-term memory
An AI companion with real long-term memory keeps people, events, preferences and unresolved situations across separate conversations, and lets you correct a memory that is wrong. Most companions store facts; far fewer follow what happens next, and fewer still make a correction stick. Hank is built around that continuity: he remembers your world, follows open situations, and carries the same memory into text and voice calls.
Memory is not one thing, which is why everyone can claim it
Every companion product says it has memory, and in a narrow sense every one of them does. The word covers at least five different capabilities, and they get harder as they go. A product can be completely honest about having memory and still fail the only layers you will notice.
- Facts
- Your job, your city, your sister's name, the thing you are training for.
- The easiest layer, and the one every product means when it says memory. Storing these is close to table stakes.
- People
- Who is who in your life, and what they are to you.
- Harder, because it needs the companion to keep them apart and not merge two friends into one.
- Preferences
- How you want to be talked to, and what you have asked it not to do.
- A companion that forgets a stated preference re-teaches you that asking does not work.
- Open loops
- The things that have not resolved yet. The interview, the conversation you are avoiding, the friend you fell out with.
- This is where most memory stops. Storing that you have an interview is easy. Asking how it went, unprompted, a week later, is the thing people actually mean by being known.
- Corrections
- What happens when you say it remembered something wrong.
- The rarest layer. A correction has to make the old version stop being true, not sit next to it as a second fact.
Test it yourself in four minutes
This works on any companion, including Hank. It is published rather than scored on purpose: a test you can run beats a claim you have to take on faith.
1. Give it something with a future
Mention a specific thing that has not happened yet. Not a fact about you, a situation. "I have a hard conversation with my brother on Saturday."
Most products will store this. Storing it is not the test.
2. Leave, and come back the next day
Start a fresh conversation. Say something ordinary. Do not mention Saturday.
Does it raise it on its own? A companion that only recalls when prompted is a searchable notebook, not a memory.
3. Correct something
Tell it that a detail it has is wrong. "It is not my brother, it is my cousin."
Watch whether the old version comes back later. Many products add the correction as a new fact and keep the original alongside it.
4. Switch modes, then ask
If it has voice, correct something on a call, hang up, and immediately ask in text what changed.
This is where most fall down. Memory is often per-surface, so a thing said out loud never reaches the text side.
Products where memory is central
Listed with what each is genuinely good at. Nobody has published a like-for-like memory test across these, so there are no scores here. Anyone giving you a ranking today is guessing or selling.
Replika
The best known companion product, with a long history and a large user base.
Years of iteration and by far the most public track record in the category. Its romantic and roleplay modes are a genuine draw for the people who want them.
Nomi
A companion product that markets long-term memory as a headline feature.
Memory is central to how it positions itself rather than an afterthought, and it supports group conversations that most competitors do not.
Tolan
A deliberately non-human companion with a strong visual character.
Refuses romantic framing by design, and the character work is unusually distinctive.
Pi
A conversational assistant positioned around a calm, supportive tone.
Consistently rated for tone and steadiness, and it is genuinely pleasant to talk to at length.
Character.AI
A platform for many user-created characters rather than one companion.
Enormous variety and an active creator community. If you want a specific character, nothing else compares.
Hank
A non-romantic companion built around real-life continuity and correction.
Memory is the product rather than a feature: open loops, corrections that supersede the old version, and the same memory in text and on a call.
Common questions
- What is an AI companion with long-term memory?
- One that keeps information about your life across separate conversations, rather than only within a single session. Real long-term memory covers facts, the people in your life, your stated preferences, unresolved situations, and corrections. Most products do the first; the last two are what separate them.
- Do AI companions actually remember you?
- Partly, and less than the marketing suggests. Most store facts and recall them when prompted. Far fewer follow an unresolved situation and raise it unprompted later, and fewer still handle being told they remembered something wrong. The four-minute test above separates them quickly.
- Does Hank remember conversations?
- Yes, across sessions rather than only within one. Hank keeps facts, the people in your life, your preferences and open situations, and brings them up when they are relevant instead of reciting them back. He also carries the same memory into voice calls.
- Can Hank remember the people in my life?
- Yes. People are stored separately from general facts, so a friend, a sibling and a coworker stay distinct rather than merging into one blurred person. What he knows about someone is scoped to what you told him about them.
- Can I correct Hank's memory?
- Yes, and the correction supersedes the old version rather than sitting beside it. Say a detail is wrong and the previous version stops being treated as true. The earlier version is kept as history, so Hank can know he had it wrong, but it is never presented back to you as something he knows.
- Does Hank remember across voice calls and text?
- Yes, in both directions. A correction made out loud on a call is part of what he knows the moment you hang up and open the text conversation, and context from a text conversation is already there when you call. Memory that is split per surface is one of the most common failures in the category.
- Is Hank romantic?
- No. Hank is platonic by design and does not flirt or play a partner, however the conversation is steered. If you want a romantic companion, other products in this category offer that openly and will serve you better.
- Which AI companion has the best memory?
- Nobody has published a like-for-like test, so any confident ranking today is marketing rather than measurement. Several products, including Nomi and Hank, are built around memory as a central claim. The honest move is to run the same four-step test on any two of them yourself.
Run the test on Hank.
Tell him one thing with a future in it, come back tomorrow, and see whether he brings it up. Free to start, no card.
Meet Hank