Catfishing on Catnet, by Naomi Kritzer

This piece of classic AI fiction is unusual in that the AI is not evil. S/he/it/they [insert politically-corrected grammar item here] is an empathetic intelligence that also likes cat pictures (an obvious sign of empathy and sentience). The AI is involved in fugitive children, gender discussions, assault with a deadly weapon, murder, robot rampage and gratuitous cat pictures and is unrepentant about most of it.
Great fun. I read it straight through. I am a little bit old for the target demographic for this one (by about fifty years), but loved it like twelve-year-old me would have. Highly recommended.

Available on Amazon, but not yet on sfpl.org