Developer Pay-As-You-Go
Free
Usage-based billing ($0.075 per 1,000 characters) with $5 free credit
- Latency
- Sub-100ms time-to-first-audio chunk
- Voice library
- Full access to expressive Sonic voices
Cartesia pricing
● Identity checkedVoice & Audio · Vendor site 2026-10-04
Cartesia is a real-time multimodal intelligence company that builds Sonic, an ultra-fast generative voice model. Sonic produces lifelike speech synthesis with sub-100ms latency, enabling natural, human-speed spoken conversations with AI voice agents.
- Category
- Voice & Audio
- Free access
- $5 in free credits upon registration to test streaming voice APIs.
- API access
- WebSocket and REST streaming APIs designed specifically for real-time voice agents; official Python and TypeScript SDKs.
Understand the total cost
Cartesia pricing & plans
Enterprise
Not listed
Custom volume commitment with dedicated capacity
- Custom voices
- Bespoke custom voice design and fine-tuning
- SLA
- Guaranteed low latency and uptime SLA
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
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