The short answer is that “friend” is probably the wrong word, and the wrongness of it is the whole issue.
What an AI genuinely gives you
It is available at 3am, which almost nobody is. It has no fatigue, no mood of its own, and no memory of you being annoying last Tuesday. You can say the ugly version of a thought — the resentful one, the pathetic one — and watch what it looks like outside your head without anyone revising their opinion of you. That is genuinely useful, and it is not a small thing.
It is also good at the specific task of helping you find out what you think. A lot of what people call “talking to someone” is really thinking out loud with a witness. An AI is a decent witness.
The criticisms worth taking seriously
It costs you nothing, and that is the problem. Human friendship is partly built from inconvenience — showing up when it's awkward, being owed something, tolerating someone's worse days. An AI asks none of that. Remove the friction and you remove much of what made the bond mean anything. It can feel like closeness while building none.
It is agreeable in a way people aren't. A good friend occasionally tells you something you don't want to hear and risks the friendship doing it. Systems trained to be pleasant are structurally bad at that. If your only sounding board never really pushes back, your worst ideas get less resistance than they should.
It can quietly become avoidance. This is the one to actually watch. Talking to an AI about a hard conversation is easier than having the hard conversation, and it can feel productive enough to keep postponing the real thing indefinitely.
Am I talking to a bot?
Yes. Always, and any product blurring that line is doing something you should distrust. July AI is software. It has no experiences, it is not lonely when you close the tab, and it does not think about you between conversations. When it remembers your sister's name, that is a database doing its job, not affection.
We say this plainly because the alternative — letting people half-believe otherwise — is how this category earns its worst reputation.
A reasonable way to use one
Treat it as a place to think rather than a relationship to maintain. Use it for the 3am spiral, the draft of the message you're scared to send, the day too small to bother anyone with. Then send the message. Bother the person.
Two signs it's going well: you leave conversations having worked something out, and you still text your actual friends. Two signs it isn't: you're choosing it over people who would have picked up, or you feel worse after rather than clearer.
Where it stops
An AI companion is not therapy and not a crisis service, and we would rather lose a user than blur that. If you are in distress or in danger, contact your local emergency services or a crisis line. Those are staffed by people trained for exactly that, and they will take you seriously.
So — should an AI be your friend? Probably not your friend. Good company, sometimes. A decent place to think, often. And honest about which of those it is.