I chat a lot with ChatGPT-4o, usually endless everyday questions like how to replace the screened washer in a kitchen faucet supply line.
It stunned me recently by remembering I had an argon tank, something I had only mentioned in a thread days earlier.
I asked it to recall which conversations these were, for sharing on HN. That conversation was comically stupid (REALLY bad, like "Perplexity" bad) and went nowhere.