Cartesia Ink 2

Cartesia Ink 2

Cartesia
Phonic-1

Phonic-1

Phonic
+
+

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About

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.

About

Phonic-1 is a real-time speech-to-speech AI model offered through Phonic’s voice-agent development platform. It processes spoken input and generates spoken responses, supporting streaming conversations, configurable voices, turn-taking, and interruption handling. Developers can access the model through an API and SDKs, then use Phonic’s hosted tools to build, test, and deploy conversational voice agents. The platform is designed for developers and businesses creating voice applications for customer support, sales, appointment handling, and other spoken interactions. It includes options for hosted or self-managed deployment and provides documented integrations and webhook-based connections to external services. Phonic states that its voice technology supports more than 50 languages.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers and product teams that need fast, accurate streaming speech recognition and transcription for real-time voice applications

Audience

Developers and business teams building conversational voice applications and AI voice agents, including customer-service, healthcare, hiring, logistics, and phone-workflow use cases.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

$0.07/min
Starter costs $0.07 per conversation minute with no minimum. Pro costs $0.065 per minute with a $200 monthly minimum. Enterprise pricing is custom, with volume-based discounts available.
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Cartesia
Founded: 2023
United States
docs.cartesia.ai/build-with-cartesia/stt/latest

Company Information

Phonic
Founded: 2024
United States
phonic.ai

Alternatives

Alternatives

GPT-Live-1

GPT-Live-1

OpenAI
Grok Voice 3.0

Grok Voice 3.0

SpaceXSI
Phonic

Phonic

Phonic.ai
PhonicsMaker

PhonicsMaker

Enzi.ai

Categories

AI Models Supported
AI Voice Models Supported
Speech to Text Supported

Categories

AI Voice Models Supported

Integrations

Amazon Connect Not Supported
LiveKit Not Supported
MachinesFluent Supported
Model Context Protocol (MCP) Not Supported
Phonic Not Supported
Telnyx Not Supported
Twilio Voice Not Supported

Integrations

Amazon Connect Supported
LiveKit Supported
MachinesFluent Not Supported
Model Context Protocol (MCP) Supported
Phonic Supported
Telnyx Supported
Twilio Voice Supported
Claim Cartesia Ink 2 and update features and information
Claim Cartesia Ink 2 and update features and information
Claim Phonic-1 and update features and information
Claim Phonic-1 and update features and information