ModelAssemblyAIConfirmed
Story 12 of 14 in the Wednesday 28 October editionAssemblyAI launches AssemblyAI-TTS-1 low-latency text-to-speech API
Introduced on 28 October 2026, AssemblyAI’s first text-to-speech model streams audio in 90ms with 4,000+ voices and instant voice cloning at $15 per million characters.
Edited by Ashutosh Shrivastava
29 Oct 2026, 09:15 IST · 1 min read
AssemblyAI launched AssemblyAI-TTS-1 on 28 October 2026, expanding beyond speech recognition into real-time speech synthesis for voice agents. Operating on continuous audio representations rather than discrete audio tokens, the model achieves a 90ms streaming latency (47ms median first byte) and 99.0% word accuracy across six languages, with over 4,000 voices and instant cloning priced at $15 per million characters with unlimited concurrency.
Sources
- PrimaryAssemblyAI blogassemblyai.com
- OfficialAssemblyAI Text-to-Speech product pageassemblyai.com
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