OpenAI FM (https://www.openai.fm/ and documentation: https://platform.openai.com/docs/guides/audio) is the demo space for OpenAI’s new voice generation models, based on GPT 4o.

Eleven voices and about twenty descriptions (tone, emotions, rate, etc.) available by default, 100 languages supported.
Descriptions and texts can be modified or added.
.wav download and share url.

Free, unlimited and without an account

Sources for testing:

– The Raven and the Fox, Wikisource: https://fr.wikisource.org/wiki/Fables_de_La_Fontaine_(%C3%A9d._Barbin)/1/Le_Corbeau_et_le_Renard
– generative AI, Wikipedia: https://fr.wikipedia.org/wiki/Intelligence_artificielle_g%C3%A9n%C3%A9rative
– Last Day of a Condemned Man, Libre théâtre: https://libretheatre.fr/wp-content/uploads/2016/10/dernierjour_hugo_LT.pdf
– Gargantua, Wikisource: https://fr.wikisource.org/wiki/Gargantua/%C3%89dition_Juste,_1535