Natural speech, proven to sound like a real person

Yes. Rather than relying on a generic voice profile, SESTEK works with your team to develop a voice that reflects your brand identity and audience expectations, a specific speaker, a specific tone, or a voice that matches your existing brand audio presence. The resulting voice model is exclusive to your organization; it isn't shared with other customers.

It depends on the voice tier. Standard-tier voices run across a wide range of environments: Windows, Linux, Docker Compose, and Kubernetes, without needing a GPU. Flash-tier voices are GPU-optimized neural voices designed for low latency and high throughput, though they can also run on CPU if GPU isn't available. Premium-tier voices deliver the highest-quality, most natural-sounding output, but they require a GPU and are available on Linux, Docker Compose, and Kubernetes.

Yes. TTS is available in both on-premises and cloud deployment models, and businesses get the same feature set in either environment. On-premises deployment keeps data fully within your infrastructure, which supports faster processing, reduced latency, and straightforward integration with existing systems. Cloud deployment removes the operational overhead of managing your own environment, resources scale on demand, there's no hardware to maintain, and the service is accessible from any device with an internet connection.

SESTEK TTS supports 20 + languages, each backed by a dedicated, optimized voice model. Coverage goes beyond language-level support to accent-specific voices that reflect real-world speech diversity, for example, Gulf, Najdi, Kuwaiti, and Emirati accents within Arabic, and separate American (en-US) and British (en-GB) voice sets within English. This is designed to make synthesized speech feel more natural and relatable to the specific audience it's speaking to.

Yes. Businesses can define their own custom abbreviations and pronunciations for words or terms that standard pronunciation models tend to get wrong, brand names, product codes, and industry-specific terminology in particular. As an example, "TTS" can be configured to be read aloud as "Text-to-Speech" instead of being spelled out letter by letter.

SESTEK TTS is available under a variety of licensing models, including pay-as-you-go, subscription-based, or custom agreements, so businesses can choose whichever option is most cost-effective for their scale and usage pattern, rather than being locked into a single pricing structure.