A: Hello,

Let me first explain the difference between AI and non-AI TTS models.

TTS (Text-to-Speech) technology converts written text into spoken audio.

Non-AI TTS: These models use pre-recorded voice samples and basic algorithms. The result may sound less natural, but it’s cost-effective and works well in cases where high-level voice quality isn’t critical.

AI TTS: AI-driven models use machine learning to generate more human-like, expressive speech. They capture tone, emotion, and natural rhythms — but they require significantly more computational power and are more expensive to run.

In Tier 1, you have access to one non-AI voice per each language.

In all tiers, you receive a monthly AI voice quota. While you have AI quota available, your audio will be generated using high-quality AI voices. Once the quota is used up, it automatically switches to the non-AI model. The quota resets at the next month.

We’ve also made an important update:
All tiers with AI voice quota will have access to our advanced AI voice models, including ultra-realistic ones.

To support this, we’re introducing a credit-based system. The number of characters you can generate will depend on the voice model you choose:

Standard AI voices = more characters per credit
Ultra-realistic voices = fewer characters, but higher quality
This gives you full flexibility to choose between quantity and quality, depending on your needs.

This update will be integrated very soon!

Thanks! :)