It's interesting, because even when it "knows" that two words are homophones, it doesn't want to believe they sound the same. I just asked it "Are 'knot' and 'not' homophones?" and it replied:

> Yes, "knot" and "not" are homophones. Homophones are words that are pronounced the same but have different meanings and spellings.

My immediate follow-up: "Do 'knot' and 'not' sound exactly the same?"

> No, "knot" and "not" do not sound exactly the same, although they are pronounced similarly. [...] "Knot" is pronounced with a short, sharp "k" sound at the beginning