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Ink 2 is our fastest, most accurate streaming speech-to-text model — the lowest word error rate and best turn detection of any streaming STT, built for production voice agents. It transcribes structured data like phone numbers, dates, and emails right the first time, and knows when a speaker starts and finishes — no separate VAD required. Turn detection is built in. Ink 2 emits a full lifecycle of turn events — turn.start, turn.update, turn.eager_end, turn.resume, and turn.end — so your agent knows exactly when to listen, think, and respond. See Turn Events for the state machine, or Compare STT Endpoints to run Ink 2 with or without turn detection.

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Models

ModelRelease DateLanguagesStatus
ink-2May 22, 2026enPreview
For information on ink-whisper, see our page on Older STT Models.

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Where to go next

Understand turn detection

See how user turn events work in voice agents

Try it out online

Test out Ink 2 with no sign-up or code required

Use the API

Start building with our Realtime STT API

Use the SDK

Take a look at some real code

Integrations

LiveKit, Pipecat, and other voice agent builders

Migrate from Deepgram Flux

Deepgram’s turn-based audio