Is Cartesia still around? (2026)
Yes. Cartesia is live and reachable, price-verified as of Jul 20, 2026.
What Cartesia is
What sets it apart Built on state space model (SSM) architecture rather than transformers, an approach Cartesia's founders helped pioneer, used to target low-latency streaming speech synthesis.
Cartesia develops voice AI models for developers, centered on Sonic, a text-to-speech system aimed at real-time and conversational use. Its technical distinction is architectural: rather than the transformer designs common to most speech models, Cartesia builds on state space models (SSMs), an approach its founders helped pioneer and use to target low-latency streaming for voice agents. Access is credit-based, starting with a free tier of 20K monthly credits and a $5/month Pro plan that adds a commercial-use license and instant voice cloning, scaling to higher tiers and custom enterprise terms. The fit is teams building voice applications, from individual developers to enterprises in areas such as financial services and healthcare.
Sources Cartesia homepage · Cartesia Sonic model page · Cartesia pricing · Index Ventures - investment in Cartesia
Use it, or see the field
Cartesia is live and price-verified as of Jul 20, 2026. If it fits, go straight to it. If you are comparing, see the full ranked field in AI Voice & TTS - only tools our health checks report as alive.
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