Nova and Onyx both capture attention, but through different energies. Nova attracts with brightness and positivity. Onyx commands with boldness and authority. Choose Nova for welcoming, approachable content and Onyx for important, impactful content.
All samples use the high-quality tts-1-hd model at 1x speed.
| Characteristic | Nova | Onyx |
|---|---|---|
| Style | Bright | Bold |
| Description | Upbeat without overdoing it. Works for apps, tutorials, and customer-facing use. | Strong presence. Good for announcements and high-impact messaging. |
| Best Use Cases |
|
|
Nova is bright and friendly. Onyx is bold and commanding.
The best way to make your decision is to test both voices with your actual content. Listen to the audio samples above with headphones, and consider generating test clips with your own scripts. Small differences in delivery can have significant impacts on user experience, so investing time in testing upfront will pay dividends.