Both Ash and Nova are upbeat and positive, but Ash is warmer while Nova is brighter. Ash suits intimate, trust-building interactions. Nova works better for energizing, motivating content. Consider whether you want to feel like a trusted friend (Ash) or an enthusiastic guide (Nova).
All samples use the high-quality tts-1-hd model at 1x speed.
| Characteristic | Ash | Nova |
|---|---|---|
| Style | Warm | Bright |
| Description | Approachable and friendly. Good for chatbots and casual interactions. | Upbeat without overdoing it. Works for apps, tutorials, and customer-facing use. |
| Best Use Cases |
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Both are upbeat. Ash is warmer while Nova is brighter and more energetic.
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.