Paid
Added on Oct 25,2026
Soniox is an AI-powered multilingual voice platform that provides speech-to-text, text-to-speech and real-time speech translation through one unified API, covering more than 60 languages.
Its speech-to-text API transcribes audio in real time or from files, and is designed to handle multilingual and language-switching conversations, multiple speakers, accents, names, numbers and domain-specific vocabulary in noisy settings.
The text-to-speech API generates expressive speech in 60+ languages with audio tags for controlling tone, a voice library of more than 200 built-in voices, instant voice cloning from a few seconds of clear audio, and low-latency streaming that can begin producing audio from the first few words.
Speech translation works in real time across 3,600 language pairs, with output that can start before a sentence finishes. Developers can build speech-to-text or speech-to-speech translation directly into their own products.
Common uses listed on the site include voice agents, wearables, dictation and voice typing, call centres, medical transcription, media transcription and speech analytics. Soniox also offers its own apps, including Smart Scribe, Translator and Voice Typing.
On privacy, Soniox states that audio is processed in memory in real time and is not stored, and it lists SOC 2 Type 2, ISO/IEC 27001:2022, HIPAA and GDPR compliance. Regional deployment with in-region processing is available, including India.
Pricing: usage-based, token-priced API billing. Speech-to-text works out at about 0.10 USD per hour for async files and 0.12 USD per hour for real-time streaming, while text-to-speech works out at about 0.70 USD per hour of generated speech. Custom packages are available for businesses.
It is suited to developers, startups and enterprises building voice products, contact centre and meeting tools, healthcare documentation, captioning and multilingual communication apps.
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