Alloy and Nova both work well for customer-facing applications, but they create different experiences. Alloy's neutrality is comfortable for diverse audiences, while Nova's brightness adds positive energy. Consider your brand personality and whether you want to project professionalism or enthusiasm.
All samples use the high-quality tts-1-hd model at 1x speed.
| Characteristic | Alloy | Nova |
|---|---|---|
| Style | Neutral | Bright |
| Description | Balanced default voice. Works across most use cases without drawing attention. | Upbeat without overdoing it. Works for apps, tutorials, and customer-facing use. |
| Best Use Cases |
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Both are approachable. Alloy is more neutral while Nova adds brightness and energy.
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.