Claude Sonnet 4.6 vs. ChatGPT (whatever the current free one is) for therapy

Prefacing this by saying I know AI isn’t a replacement for people. I’m in the first 24 hours of a breakup (the kind where there isn’t one wrong party, just a disconnect and we do both care but maybe not enough, the “almost but not quite” kind of hurt). The thoughts are swirling and I have new stuff to say every 10 minutes and I don’t want to put all that on a friend yet, so I’m hitting “send” to AI. But I do have therapy tomorrow (the earliest I could book on short notice) and various socials over the next week where I’m gonna talk to my friends.