FreeTTS offers Free Trial, but SpeechGen does not.
Pricing for SpeechGen Starts at $4.99/month whereas for FreeTTS Starts at $19/month.
SpeechGen offers several advantages, including Over 270 natural voices, Supports multiple languages, Multi-voice dialogue editing, Downloadable audio files, Supports long texts and many more functionalities.
The cons of SpeechGen may include a Limited voice customization options, Too many voice options, Complex interface, Longer processing time. and No transcription service
FreeTTS offers several advantages, including Supports almost all languages, Produces high-quality audio, Free of charge, Allows commercial use, Fast text-to-speech conversion and many more functionalities.
The cons of FreeTTS may include a Limited weekly characters, Removes audio after 24 hours, No offline functionality, Doesn't support voice customization. and No real-time text-to-speech feedback