Can AI replace a therapist? No. Not today, and not in the way the question usually means.
An app can be a place to think out loud at midnight. It can help you notice a pattern, practise a skill, or put a feeling into words. What it cannot do is take responsibility for you, read what you are not saying, or be accountable when it gets something wrong.
That is worth being clear about, because the gap between those two things is where people get hurt. Below is what a trained person actually provides, where AI has already fallen short, and the things an app is genuinely good at.
What a professional does that an app cannot
The obvious answer is training, and that matters. But it is not the only one.
Decades of research point at something less technical: the relationship itself. A review pulling together nearly three hundred studies and over thirty thousand clients found that the quality of the working relationship between client and professional was consistently linked to how well treatment went. The link held across different approaches and different ways of measuring it.
Technique matters. So does the relationship, a great deal.
That relationship involves things an app has no access to:
- Noticing what you leave out. A person hears the subject you keep steering away from. An app answers the question you asked.
- Carrying the thread. A professional holds your history and uses judgement about when to return to something painful. Timing is part of the skill.
- Being accountable. They are licensed, supervised and answerable. If they do harm, there is somewhere to take it.
- Tolerating being wrong. A good professional can sit with you being angry at them, and that rupture and repair is often where the work happens. Chatbots tend to agree with you.
That last one matters more than it sounds. A model trained to be helpful and agreeable is a poor judge of when you need to be gently contradicted.
One nuance worth knowing: the same review found the relationship mattered just as much in sessions held online as in person. So the limit is not the screen. It is who, or what, is on the other side of it.
Where AI has already fallen short
This is not theoretical. Researchers at Stanford tested several chatbots, including ones marketed for emotional support, and presented their findings in 2025 at a conference on fairness and accountability in computing.
Two findings stand out. The chatbots showed more stigma towards some conditions than others, and newer, larger models were no better than older ones. And when someone described a serious situation, the chatbots often responded inappropriately, at times going along with what the person said rather than questioning it.
The researchers' own conclusion was that AI should not replace human professionals, though it might assist them with things like logistics and training.
Be careful about who is making the claim, too. "Designed by psychologists" is a marketing line, not a credential. The one reading your message at 2 a.m. is a model, however the homepage is worded.
What AI is actually good for
None of this means an app is useless. It is useful for a different set of things.
- It is there at the hour you need it. Most difficult evenings do not fall inside office hours.
- It lowers the cost of starting. Writing one sentence to an app is easier than booking an appointment, and for a lot of people it is the first time they put the thing into words at all.
- It is good at structure. Walking through the same set of questions every time is exactly the kind of thing software does reliably and people do inconsistently.
- It notices patterns over time. If the same subject comes up every Sunday evening, that is visible in a way it is not from memory.
- It never gets tired of you. You can say the same thing for the fifteenth time without anyone sighing.
These are real. They are just not the same job. A good app is closer to a notebook that answers than to a person who treats you, and most of the disappointment people report comes from expecting the second and getting the first.
Using both at once
For most people the useful question is not which one, but how they fit together.
A common pattern: see a professional for the hard work, and use an app between sessions for the daily parts. Write down what came up during the week so you are not reconstructing it from memory on the day. Practise the thing you agreed to practise. Notice when a pattern repeats.
Some people find the app is what gets them to book the appointment, because writing it down for a few weeks makes the size of the thing visible.
If you are already seeing someone, it is worth telling them you are using an app and what for. They may have an opinion about which parts help.
When to talk to a person instead
Some situations need a human being, and no app is a substitute.
- You have felt low or flat for weeks rather than days.
- Something happened that you cannot talk about, and avoiding it is shaping your life.
- Sleep, eating or drinking have changed in a way that worries you.
- People close to you have said they are concerned.
- You are thinking about hurting yourself.
For the last one, do not use an app. Call your local emergency number, or see our help page, which lists helplines by country, checked against each service's own site.
Asking for help is not a last resort, and waiting until things are bad enough to qualify is the most common mistake people make with this. You do not need a diagnosis or a crisis to be worth an hour of someone's attention.
What Chirpi is, and what it is not
Chirpi is a companion that listens, remembers what matters to you, and helps you take one small step. It is not a licensed professional, it does not diagnose anything, and it is not a crisis service.
What it does is the daily layer: a daily check-in, short practices for a looping thought, a journal that opens with a question written from what Chirpi knows of you, and a vision board for where you are going. If a conversation suggests someone may be in danger, Chirpi shows helplines for their country and stays with them. It never pretends to be something it is not.
If you want more on how apps like this work underneath, there is a plain guide to that, and a privacy checklist for working out which ones to trust.
Chirpi is coming to iPhone and Android. The first seven days are free, with no card.
Is it okay to use an app between sessions?
Yes, and many people find it helps. Writing down what came up during the week means you are not reconstructing it from memory on the day. If you are already seeing someone, tell them you are using an app and what for, because they may have a view on which parts are worth keeping.
Can an app give a diagnosis?
No, and you should be wary of any app that suggests it can. Diagnosis is a clinical judgement made by a qualified person who can ask follow-up questions, look at your history and be held accountable for the answer. An app can describe general patterns, which is a different thing entirely.
What can an app do that a person cannot?
Three things, mainly. It is available at the hour you actually need it rather than during office hours. It applies the same structure every single time, which people do inconsistently. And it can show patterns across weeks that are hard to see from memory alone.
Why does the relationship with a professional matter so much?
Because the evidence keeps showing it. A review of nearly three hundred studies found the quality of the working relationship was consistently linked to how well things went, across different approaches. It held for online sessions too, so the limit is not the screen.
How do I find professional support?
Start with your doctor, who can point you to local services and explain what is covered where you live. Workplaces and universities often have free sessions people do not realise they can use. You do not need a crisis to qualify, and waiting until things get bad enough is the most common mistake.
General wellbeing information, not medical advice. If you're struggling, here's where to find help.
Brice founded Chirpi after going through low times himself and watching his family go through them too. He learned that people mostly want to be heard, and to have somewhere to go. Chirpi is built on both.
Sources
- Flückiger, C., Del Re, A. C., Wampold, B. E. & Horvath, A. O. (2018). The alliance in adult psychotherapy: A meta-analytic synthesis. Psychotherapy, 55(4), 316-340.
- Moore, J., Grabb, D., Agnew, W., Klyman, K., Chancellor, S., Ong, D. C. & Haber, N. (2025). Expressing stigma and inappropriate responses prevents LLMs from safely replacing mental health providers. ACM Conference on Fairness, Accountability, and Transparency (FAccT '25).
