Cartesia
UnclaimedReal-time text-to-speech API with AI laughter, emotion, and ultra-low latency for voice agents.
Visit WebsiteTL;DR - Cartesia
- Real-time text-to-speech with AI laughter and emotion.
- Ultra-low latency (90ms) for fluid conversational AI.
- Code-first platform for building and orchestrating voice agents.
Pricing: Free plan available
Best for: Growing teams
Pricing Plans
Free
$0/ month
- 20K credits for models
- $1 prepaid for agents
- Personal use
- Discord support
Pro
$4/ month
- 100K credits for models
- $5 prepaid for agents
- Instant voice cloning
- Commercial Use
Startup
$39/ month
- 1.25M credits for models
- $49 prepaid for agents
- Pro voice cloning
- Organizations
Scale
$239/ month
- 8M credits for models
- $299 prepaid for agents
- Priority support
- High concurrency limits
Enterprise
Contact us
- Custom usage pricing
- Custom concurrency
- Enterprise support via slack
- Enterprise-grade security & compliance
- Priority Dedicated Support via Slack
- Single Sign-On (SSO)
- PCI compliance
- Custom SLAs
- Custom Security Review
- HIPAA compliance
About Cartesia
Cartesia offers Sonic-3, a state-of-the-art text-to-speech (TTS) API designed for creating highly natural and expressive AI voice agents. Unlike traditional TTS, Sonic-3 incorporates AI-generated laughter and emotions, making conversations feel more human and engaging. It boasts ultra-low latency (90ms time-to-first-audio), ensuring real-time, fluid interactions crucial for conversational AI applications.
Built on advanced state-space models (SSMs), Sonic-3 provides context-savvy accuracy, handling acronyms and initialisms intelligently, and supports 42 languages. Cartesia also provides Ink-Whisper for fast streaming speech-to-text and Line, a code-first platform for developing and orchestrating complex voice agents. This suite of tools is ideal for developers and enterprises looking to build sophisticated, high-performance voice AI solutions for various industries like customer support, healthcare, gaming, and logistics, with a strong focus on enterprise-grade security and compliance.
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Cartesia FAQ
Cartesia provides advanced AI voice technology, primarily through its Sonic-3 text-to-speech API, which generates highly natural and expressive voices with AI laughter and emotions. It also offers Ink-Whisper for speech-to-text and Line for building and orchestrating AI voice agents.
Cartesia offers several pricing plans: Free ($0/month), Pro ($4/month billed yearly), Startup ($39/month billed yearly), Scale ($239/month billed yearly), and Enterprise (custom pricing). Costs are based on credits for models and prepaid amounts for agents, with varying features and concurrency limits across plans.
Yes, Cartesia offers a 'Free' plan which includes 20,000 credits for models and $1 prepaid for agents, along with Discord support. This plan is designed for personal use and allows users to get introduced to their core models and build their own voice agent.
Cartesia is for developers, technical teams, and enterprises looking to build and deploy sophisticated, real-time AI voice agents. It caters to various industries such as customer support, healthcare, gaming, and logistics, requiring natural, low-latency, and context-aware voice interactions.