Speechmatics

Speechmatics provides high-accuracy autonomous speech recognition (ASR) across 50+ languages through a single, unified API.

This engine powers global brands (Deloitte, Vonage) by training on 1.1 million hours of unlabelled audio to master diverse accents and noisy environments. Its Ursa model consistently beats Big Tech benchmarks in Word Error Rate (WER) across global dialects. You can use it for real-time transcription, media subtitling, and sentiment analysis. Deployment is flexible: choose between secure on-premises containers or a low-latency cloud API.

https://www.speechmatics.com