Real-time voice AI platform offering text-to-speech, speech-to-text models and managed voice agents through an API.
Cartesia is a voice AI platform built on its own research into state space models. It provides Sonic text-to-speech, Ink streaming speech-to-text in 44 languages, and Managed Agents for phone-based voice agents, all accessible through one API designed for low-latency live conversation. It is aimed at developers and companies building customer support, appointment scheduling, sales qualification, recruiting and collections voice experiences across industries such as financial services, healthcare, retail and telecommunications. Deployment options include cloud, on-premise and on-device. The product is sold through paid plans and usage-based pricing, with a free trial and contact sales available.
Free
$5/mo
$49/mo
$299/mo
Customcontact sales
Prices in USD, as shown by cartesia.ai. Source: pricing page. Last checked October 30, 2026.
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I want to decide whether Cartesia (cartesia.ai) is the right tool and which plan to pick. Below is what the StableMRR pricing directory read from Cartesia's own pricing page (last checked 2026-10-30). It can be out of date, so treat it as a starting point. Category: AI agents / AI voice and audio What it does: Real-time voice AI platform offering text-to-speech, speech-to-text models and managed voice agents through an API. Plans: - Free: Free. Limits: credits 20K credits / month, prepaid agents $1 / month, TTS minutes included ~27, TTS concurrent requests 2, STT hours included ~1h 51m, STT concurrent requests 8. Includes: Text to Speech, Speech to Text, Instant voice cloning - Pro: $5/mo. Limits: credits 100K credits / month, prepaid agents $5 / month, TTS minutes included ~133, TTS concurrent requests 3, STT hours included ~9h 16m, STT concurrent requests 12. Includes: Commercial use license, Instant voice cloning, Text to Speech, Speech to Text - Startup: $49/mo. Limits: credits 1.25M credits / month, prepaid agents $49 / month, TTS minutes included ~1,667, TTS concurrent requests 5, STT hours included ~115h 44m, STT concurrent requests 20. Includes: Pro voice cloning, Commercial use license, Instant voice cloning - Scale: $299/mo. Limits: credits 8M credits / month, prepaid agents $299 / month, TTS minutes included ~10,667, TTS concurrent requests 15, STT hours included ~740h 44m, STT concurrent requests 60. Includes: Priority support, High concurrency limits, Pro voice cloning - Enterprise: Contact sales. Limits: credits Custom, TTS minutes included Custom, STT hours included Custom, phone numbers Custom, concurrent calls Custom. Includes: Custom concurrency limits, DPAs and BAAs for compliance, Shared Slack channel, SSO, Security questionnaires Alternatives in the directory: ElevenLabs, 8call, AIVA, AiVOOV Pricing page: https://www.cartesia.ai/pricing Directory listing: https://stablemrr.com/p/cartesia-ai First ask me three short questions about my team size, budget and what I need it for. Then recommend one plan, tell me what could make it a bad fit, and compare it with the alternatives. Finish with what I should check on the vendor's site before I pay.
No price changes recorded since we started tracking on October 30, 2026.
| Product | Category | Free plan | Paid from | Plans | Checked |
|---|---|---|---|---|---|
| ElevenLabsRealistic AI voice generation | AI voice and audio | Yes | $6/mo | 7 | Oct 29, 2026 |
| 8callAI receptionist that answers business calls, qualifies callers, and books appointments around the clock. | AI voice and audio | No | $99/mo | 3 | Oct 29, 2026 |
| AIVAAI music generation assistant that creates original songs in over 250 styles from text or audio inputs. | AI voice and audio | Yes | - | 3 | Oct 29, 2026 |
| AiVOOVConverts written text into AI-generated voiceovers in many languages and voices for videos, podcasts and e-learning. | AI voice and audio | No | $14.90/mo | 5 | Oct 29, 2026 |
| Aimi SessionBrowser-based music studio where an AI producer builds editable multi-track sessions from prompts. | AI voice and audio | Yes | - | 1 | Oct 29, 2026 |
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How this page was made. Plans and prices are read automatically from cartesia.ai's public pricing page, checked against the page text, and re-checked about every week. Method. Something wrong? Tell us.
