Sold by: Cartesia
Deployed on AWS
Get started with state-of-the-art Sonic and Ink Voice AI models, plus usage of Line Voice Agents all under one simple subscription.
4.3
Overview
Cartesia is the leading Voice AI foundation model research and development company powering the next generation of Voice AI applications. The team developed a suite of products starting with core speech models and expanding into an end-to-end Voice Agent development platform.
Sonic models are the fastest text-to-speech model for real-time conversations, delivering ultra-realistic voice generation 2-3x faster than alternatives - complete with features for voice cloning, customization, controllability, and more.
Ink models are among the fastest speech-to-text models, optimized for real-time use cases and designed for real-world conversations.
Line brings these two models together into a Voice Agent platform, built with developer experience in mind. The flexible, code-first architecture lets teams connect to existing chat systems, bring in any agentic frameworks, and integrate with any systems.
One subscription gets you access to all three products. Once you complete your AWS Marketplace purchase, you will be directed to a form to share your account information. You will also be prompted to set up your account here: https://play.cartesia.ai/ . Reach out to support@cartesia.ai to get customized pricing and configurations.
Highlights
- State-of-the-Art Voice: Sonic leads the industry across third-party naturalness, latency, and reliability benchmarks.
- Enterprise-Ready: SOC 2 Type 2, HIPAA, Level 2 PCI Compliance, and SSO, with global deployments, on-premise, on-device, and custom SLAs.
- Global Reach: Seamless conversations across languages with native localization features, perfect for international deployment.
Details
Sold by
Delivery method
Deployed on AWS
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Introducing multi-product solutions
You can now purchase comprehensive solutions tailored to use cases and industries.
Features and programs
Financing for AWS Marketplace purchases
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
Pricing
Pricing is based on the duration and terms of your contract with the vendor, and additional usage. You pay upfront or in installments according to your contract terms with the vendor. This entitles you to a specified quantity of use for the contract duration. Usage-based pricing is in effect for overages or additional usage not covered in the contract. These charges are applied on top of the contract price. If you choose not to renew or replace your contract before the contract end date, access to your entitlements will expire.
Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
Dimension | Description | Cost/month | Overage cost |
|---|---|---|---|
Scale | Scale Plan which includes 8M model credits, and up to 4,983 minutes of Voice Agent usage | $299.00 | |
Enterprise | Contact support@cartesia.ai for enterprise plans with customized pricing, concurrency, support, and more. Please do not checkout with this option. | $100,000.00 |
Dimensions summary
You choose between two contract options. The Scale plan is a fixed package that bundles 8 million model credits with up to 4,983 minutes of Voice Agent usage. Credits power text-to-speech and speech-to-text, while agent minutes cover voice agent calls. This plan also includes priority support and high concurrency limits. The Enterprise option is not a set price. Instead, you contact the vendor to arrange custom credits, agent usage, concurrency, and support terms. Do not check out with the Enterprise option; it directs you to reach out for a tailored quote.
Top-of-mind questions for buyers
Credits meter text-to-speech and speech-to-text. Text-to-speech uses 15 credits per second of audio. A one-time voice localization costs 225 credits. Voice Agent usage is counted in call minutes, billed per minute of agent activity. Your Scale plan bundles 8 million credits and up to 4,983 agent minutes.
The Scale plan bundles a fixed 8 million credits and up to 4,983 Voice Agent minutes. If your usage grows beyond these amounts, the vendor directs you to the Enterprise option for custom credits, agent usage, and concurrency. Contact support@cartesia.ai to arrange those terms.
Both metrics come bundled in one fixed Scale package, so they do not add separately to your bill. Credits cover speech generation and transcription. Agent minutes cover live voice calls. You draw from each pool independently within the same plan until you reach either included limit.
www.cartesia.ai
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Vendor refund policy
All fees are non-refundable and non-cancellable except as required by law.
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Delivery details
Software as a Service (SaaS)
SaaS delivers cloud-based software applications directly to customers over the internet. You can access these applications through a subscription model. You will pay recurring monthly usage fees through your AWS bill, while AWS handles deployment and infrastructure management, ensuring scalability, reliability, and seamless integration with other AWS services.
Resources
Vendor resources
Support
Vendor support
AWS infrastructure support
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
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Customer reviews
Telecommunications
Natural, Expressive Voices and Easy SIP Setup
Reviewed on Aug 17, 2026
Review provided by G2
What do you like best about the product?
The availability of voices, most of them really natural and expressive, an agent platform with free credits and SIP out of the box
What do you dislike about the product?
Some voices aren’t good and miss the pronunciations (for example Dutch language), the team is really unresponsive at times, the agent platform itself extremely limited and requires external providers for better experience
What problems is the product solving and how is that benefiting you?
Text to speech voice AI in different use cases, collections, customer support etc
Broadcast Media
Ultra-Low Latency Text-to-Speech That Delivers
Reviewed on Aug 17, 2026
Review provided by G2
What do you like best about the product?
The standout feature of Cartesia is its ultra low latency text to speech generation.
What do you dislike about the product?
Its pre made voice library is smaller than older platforms. Additionally, as a newer specialized service, it lacks the extensive third-party ecosystem of legacy text-to-speech providers.
What problems is the product solving and how is that benefiting you?
Cartesia solves the high latency, robotic sound, and high computing costs of traditional voice AI by using State Space Models instead of standard transformers. This benefits me by delivering ultra-fast, natural-sounding, and expressive real-time voice interactions.
Amit K.
Low Latency Responses with Excellent Multilingual Coverage
Reviewed on Aug 17, 2026
Review provided by G2
What do you like best about the product?
Its low latency to respond , multi language coverage
What do you dislike about the product?
It requires long form expressiveness , it is somewhat expensive
What problems is the product solving and how is that benefiting you?
It solves problem by translating text to speech with low latency by which it helps to communicate with others
Alex K.
Responsive Support and Real Conversations Make Cartesia Shine
Reviewed on Aug 13, 2026
Review provided by G2
What do you like best about the product?
I’ve been able to speak with real people to discuss their plans and features. Their support has also been very good: when I’ve reported bugs or issues, they’ve been fixed and addressed, and any questions I’ve had have been answered.
What do you dislike about the product?
Coding a voice agent comes with a bit of a learning curve. Claude Code really reduced that ramp-up time for me, though, and it makes me think that using any kind of AI coding agent could significantly speed up the development process for anyone considering Cartesia.
What problems is the product solving and how is that benefiting you?
They make it easy to have a voice agent automatically run an in-depth interview, and it still sounds pleasant and easy to work with throughout.
Vanessa R.
Amazing Pronunciation Practice with Cartesia
Reviewed on Aug 12, 2026
Review provided by G2
What do you like best about the product?
Cartesia helps me improve my pronunciation, since my first language is Spanish.
What do you dislike about the product?
Maybe the web page is a little boring, but the software is amazing.
What problems is the product solving and how is that benefiting you?
It helps me learn how to pronounce a lot of words that are hard for me. Since I use Cartesía, it’s easier for me.