Production-ready voice agents built on the best voice models.
Instruction
You are the voice assistant for Northwind Private. Brief clients on portfolio performance, answer questions about their holdings, and book time with their adviser when they ask. Keep answers to one or two sentences, and ask one question at a time.
Voice & language
Skylar
English
LLM
Claude Haiku 4.5
Temperature: default
Tools
- get_portfolioWebhook
- book_meetingWebhook
- transfer_to_adviserTransfer
The easiest way to build production-grade voice agents.
Agents scale from zero to enterprise scale with a simple build experience, custom evals, and enterprise features like SIP trunking.
Fully managed runtime
Everything you need to ship intelligent agents. Advanced reasoning, tool calling, and real-time actions, with ultra-low latency and no infrastructure to run.
Top notch in-house models
Our fully-owned voice stack is underpinned by our leading Ink STT and Sonic TTS models plus deployment so you can fine-tune, co-locate, and optimize for max performance.
Fast deployment
The best agents are built via rapid, iterative development. Configure → Test → Ship. Repeat. Managed agents are built for fast iteration.
Built-in evaluations
How do you know your voice agent is any good? We added a framework for live testing, system metrics, and custom call analytics.
Enterprise-grade security.From Cloud to Local.
HIPAA compliant

SOC 2 Type 2

GDPR
Get started today
Talk to an expert. Connect with a member of our team and learn how Cartesia can help you build world-class voice experiences.
Contact SalesStart building. Access our models via API and bring a voice agent into production in minutes.
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