Speechmatics
Voice AI APIs for building real-world voice applications
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Mieke Kyra Smith

Speechmatics On-Device - Cloud-grade transcription. No internet required.

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On-device speech-to-text for Mac and Windows. Cloud-grade accuracy across 55+ languages, full speaker diarization, and audio that never leaves the device. Built for studios, legal, healthcare, and any workflow where data residency matters.

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Mieke Kyra Smith
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Hey PH 👋 If you're an Adobe Premiere user, this means text-based editing, instant captions, and accurate transcription, all running locally. No upload, no waiting, no privacy risk. Journalists editing in the field, podcast editors, documentary makers, anyone who works with spoken word, this is for you. But the bigger story is what this means for builders. We've closed the gap between on-device and cloud accuracy to within 5%, tested across nearly 10 million words of real-world speech. That changes what's architecturally possible for any product where audio can't leave the device. Healthcare, legal, enterprise, agentic workflows that need a reliable speech layer without a cloud dependency. The use cases are wide open. Would love to hear from anyone working on offline-first voice pipelines or on-device AI. What are you building?