Cartesia for AI voice agents
Cartesia is one of the voices you can run a Telenow AI voice agent on. Lowest-latency streaming TTS (Sonic); near-realtime, μ-law 8k direct. Give your agent a Cartesia voice for natural, streaming speech the caller can't tell from a human. Mix and match it with any LLM, STT, TTS and carrier — Telenow is component-level, so you're never locked in.
Last updated 2026-06-25
Cartesia voices
Frequently asked questions
Can I use a Cartesia voice for my AI agent?
Yes — pick a Cartesia voice in Telenow and your agent speaks with it on every call, streaming so there's no awkward pause.
What voices does Cartesia offer?
British Lady and Barbershop Man — choose by language, gender and style in the builder.
Does Cartesia stream speech in real time?
Yes — Cartesia streams audio as it's generated, so the agent starts talking immediately instead of waiting for the whole sentence.
How much does Cartesia cost for a voice agent?
You pay Cartesia's usage at cost plus Telenow's transparent platform fee — billed per component (speech, model, telephony) and per minute, with new accounts getting free signup credit to try it.
Can I bring my own Cartesia API key?
Yes. Telenow supports BYOK — paste your own Cartesia key to bill Cartesia usage to your account, or use the platform key and pay through Telenow.
Other text-to-speech (tts) options
Build a voice agent with Cartesia
Sign up free and get ₹300.00 in credit — no card required. Connect your number, pick a template, and go live in minutes.