Asklemmy

It's worth pointing out that whatever tips you get here, accurate though they may be today, are likely to be less accurate with time and this tech is improving at a rapid pace so if this is important to you, you'll have to keep on top of what techniques for discernment are current at any given time or if there even remain any reliable techniques at all.

Looks like eventually it's all going to come down to context and your assessment of the trustworthiness of the source. If something is so sensational it seems unbelievable and you don't have much trust in the source from which you saw it, it probably is literally unbelievable until further corroboration emerges. This is a pretty exhausting model when modern live involves so much media consumption but I'd advise that there's also an element of practicality you should incorporate in to your evaluation. You'll have to decide if the answer to the question "is this AI?" is important for any given situation before actually investing any time or energy in to answering it. Sometimes you might get the calculation wrong and it turned out that by assuming something was innocuous enough not to matter one way or the other you ended up being misinformed about something that actually was important but at the end of the day we're only mere mortals and can sometimes be wrong.