Soniox

One speech AI API for realtime speech-to-text, text-to-speech, and translation i

Developer ToolFreemium Launched June 22, 2026

About Soniox

Soniox is a multilingual speech AI platform providing real-time speech-to-text, text-to-speech, and translation APIs across 60+ languages through a single unified API. It is built for voice applications including voice agents, wearables, and speech translation with sub-200ms latency and native-speaker accuracy.

What makes it different

Built from the ground up for high accuracy across 60+ languages with seamless language switching, rather than English-first approaches like most competitors.

Highlights

Real-time speech-to-textText-to-speech generationReal-time translation60+ languages supportSub-200ms latency

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