TextaVoice (https://www.textavoice.com/) converts text to an audio file.

The text (2000 characters maximum) is associated with a language and a voice, with speed, tone and emotion settings.

30 languages supported including French (2 voices for French).

Export to MP3 or share social media. Commercial use permitted.

No mention of the model used.

Free, no account required, and seems unlimited.

Text for the test: https://fr.wikipedia.org/wiki/Art_po%C3%A9tique_(Verlaine)