Unreal Speech is an ultra-realistic text-to-speech API that provides more natural-sounding speech than Amazon, Google, and Microsoft. It is also up to 4x cheaper than the other providers.
It offers a live demo and pricing plans for pay-as-you-go and commitment tiers with volume discounts. It currently provides 3 American male voices and is working to add female and British voices.
It processes 3,000 characters in around 2 seconds and can be customized on a case-by-case basis. It also offers voice cloning services on a limited basis.
Unreal Speech also provides a partner website, Voicemaker.in, for creating audio files without using the API. It is protected by reCAPTCHA and is subject to Google’s privacy policy and terms of service.