
There is a Medium article, The Voices of AI: Poetry, comparing various AIs reciting poetry. Poetry is hard domain to get right given it s varying volume, cadence, and emotion, along with dependence on line breaks and alternative grammatical structures for emphasis.l
An emotionally nuanced text-to-speech API that automatically adjusts pitch, cadence, and volume based on a persona you provide with a choice of over 500 voices. iCendant is partnered with Speechify to further enhance thier leading text-to-speech capabilities.