Audience
Voice agent engineering teams that need accurate real-time English transcription with built-in turn detection for natural back-and-forth conversations
About Cartesia Ink 2
Ink 2 is Cartesia’s fastest, most accurate streaming speech-to-text model, built for production voice agents with the lowest word error rate and best turn detection of any streaming STT. It is designed to transcribe structured data such as phone numbers, dates, and emails correctly the first time, while also knowing when a speaker starts and finishes without requiring a separate voice activity detection system. Turn detection is built directly into the model, so voice agents can react to events instead of managing raw transcript segments. Ink 2 emits a full lifecycle of turn events, giving an agent clear signals for when to listen, interrupt, think, prepare a reply, cancel a premature response, or speak. The transcript property is cumulative within a turn, meaning each update contains the full text transcribed so far rather than a delta, and emitted text is final once sent.
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Otter.ai
Otter is where conversations live. Generate rich notes for meetings, interviews, lectures, and other important voice conversations with Otter, your AI-powered assistant. Organizations who have the Otter advantage. Teams big and small trust Otter to transcribe their important conversations. Our shiny new release, Otter 2.0, adds more functionality to improve collaboration and productivity. The Teams plan includes capabilities designed especially for small and medium businesses and teams in larger enterprises. Record and review in real time. Search, play, edit, organize, and share your conversations from any device. Record conversations using Otter on your phone or web browser. Import or sync recordings from other services. Integrate with Zoom. Get real-time streaming transcripts and, within minutes, rich, searchable notes with text, audio, images, speaker ID, and key phrases. Share or export voice notes to inform others and get on the same page.
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Speechmatics
Best-in-Market Speech-to-Text & Voice AI for Enterprises.
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Powered by Foundational Speech Technology, Speechmatics supports mission-critical voice applications in media, contact centers, finance, healthcare, and more. With on-prem, cloud, and hybrid deployment, businesses maintain full control over data security while unlocking voice insights.
Trusted by global leaders, Speechmatics is the top choice for best-in-class transcription and voice intelligence.
🔹 Unmatched Accuracy – Superior transcription across languages & accents
🔹 Flexible Deployment – Cloud, on-prem, and hybrid
🔹 Enterprise-Grade Security – Full data control
🔹 Real-Time & Batch Processing – Scalable transcription
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Integrations
API:
Yes, Cartesia Ink 2 offers API access
No integrations listed.
Company Information
Cartesia
Founded: 2023
United States
docs.cartesia.ai/build-with-cartesia/stt/latest
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