This is an AI audio generation comparison for text-to-speech 
prompt:
Artificial intelligence is a life-changing, sometimes life-like phenomenon—but it’s not without its quirks. Take, for example, the AI assistant who confidently declared, 'I am definitely not plotting world domination—wink, wink.' It’s enough to make you laugh... nervously... This test was generated for AIcreators dot tools, your go-to destination for AI software made for creators, filmmakers, and educators.
Tested: May 14, 2025
Model: speech-02-hd. This generation used 418 credits. 'Man With Deep Voice' prebuilt voice.
Tested: June 26, 2025
Female voice: Soumya. Original output was wav, 24000 Hz, 16 BPS
Tested: June 26, 2025
Male voice: Varum. Original output was wav, 24000 Hz, 16 BPS
Tested: June 27, 2025
Tested: June 27, 2025
Sesame CSM 1B test on HuggingFace using two default speakers
Tested: June 27, 2025
The model trips on words with hyphens so its best to remove them sometimes. You can note the 'go-to' pronunciation for example.
Tested: June 27, 2025
In the first run, model completely stopped at 'wink, wink' and no further audio was generated. Probably went plotting world domination 😂
Tested: June 27, 2025
Just a random voice generation by Zonos, default settings.
Tested: July 6, 2025
Tested through Fal.ai Best of 6. Still some repetitions and jumping in going on. In other tests, there were more than 5 seconds long silences, omissions of words and sentences. Speech pace too fast.
Tested: July 15, 2025
Voice: 🇺🇸 🚺 Heart ❤️
Tested: July 24, 2025
smart-voice used
The text contains most letters of the alphabet and some words that might be tricky to pronounce correctly ('life-like').
Check out the results from Minimax Audio vs Veena TTS vs Veena TTS vs ElevenLabs (Eleven v3 (alpha)) vs CSM by Sesame AI Labs vs F5-TTS vs Chatterbox vs Zonos vs Dia vs Kokoro TTS vs Higgs Audio for similar or identical prompts side-by-side.
