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Rime is a San Francisco-based voice AI startup that builds enterprise-grade speech synthesis and speech-to-speech models powered by a linguistics-first approach. Founded by former Stanford researchers and an Amazon Alexa linguist, Rime trains its models on a proprietary dataset of expressive, multilingual conversational audio collected in its own recording studio, rather than internet-scraped data. Its platform offers 600+ customizable voices with sub-100ms latency, powering over 100 million automated calls per month across healthcare, fintech, food service, and telecom for clients such as Mayo Clinic, Domino's, Wingstop, Dialpad, and Asurion. Rime is HIPAA compliant and is now advancing toward direct speech-to-speech models to further reduce latency and improve conversational naturalness at enterprise scale.

Company Founded in 2022

SaaS

Articles about Rime

Rime Raises $24M Series A to Build Enterprise Voice AI on Custom Data

SaaSAug 3, 2026

Rime Raises $24M Series A to Humanize Enterprise Voice AI

SaaSJul 16, 2026

Prime Intellect Raises $130M Series A at $1B Valuation

SaaSJul 9, 2026