Cartesia vs Lovo
Explore the key differences between Cartesia and Lovo voice AI models. Discover features, pricing, and performance metrics.
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Comparing Cartesia and Lovo Voice AI Models
Cartesia offers ultra-fast voice generation at 40ms latency, while another provider has slower response times. Enjoy lifelike voices without hallucinations.
Updated on:
Feb 14, 2025
Features
Cartesia
40ms for the Sonic Turbo model, 90ms for the Sonic 2 model
Consistently rated as more natural, expressive, and realistic in blinded human evaluations
Infinite request length
Requires 3 seconds of audio
IPA support with strong contextual understanding
Slider control for speed and emotion + synthetic voice mixing and design
8kHz audio, telephony optimized voices
Supports both on-prem and on-device deployments
15 languages with extensive dialect coverage
Up to 15 on highest self-serve tier (60 parallel conversations), custom for enterprise
Lovo
Higher latency, impacting responsiveness
Less depth and reliability ratings
Limited character count for longer texts
Longer audio duration needed for cloning
More audio time needed for quality replication
Isolated pronunciation
Stability and similarity controls
Standard 8kHz audio
No on-device or on-prem support
over 100 languages
Limited concurrent usage options
Cartesia - Advanced AI Voice Capabilities
Cartesia AI offers the fastest voice model with hallucination-free, ultra-realistic voice generation and cloning.
High-Quality Voice Cloning
Cartesia offers high-fidelity voice cloning that captures emotional depth.
Ultra-Realistic Voices
With a latency of just 135ms, Cartesia delivers lifelike speech quickly.
No Hallucinations
Cartesia ensures clear audio output, eliminating errors in voice replication.
Enterprise Ready
Enterprise-grade reliability with 99.9% uptime, SOC2 compliance, and full on-premises support.
Voice Quality Comparison
In the realm of voice quality, Cartesia consistently outperforms competitors like Lovo. Cartesia's Sonic model has been rated with a score of 4.7 in independent evaluations, while Lovo falls short with a score of 4.38. This superior quality is attributed to Cartesia's advanced state space model architecture, which enhances clarity and emotional sensitivity in speech. Furthermore, Cartesia's voices are often described as more natural and realistic, making them ideal for applications requiring high-quality audio output.
Latency Evaluation
Latency is a critical factor in voice AI applications. Cartesia measures latency using the Time to First Audio (TTFA) metric, achieving an impressive TTFA of 199 ms. This is significantly faster than Lovo, which has a TTFA of 300 ms. Cartesia's Sonic model is built on state space models (SSMs), allowing for greater latency optimization compared to traditional transformer architectures. This efficiency ensures that users experience seamless interactions, making Cartesia a preferred choice for real-time applications.
Hallucination Rate Analysis
Cartesia excels in minimizing hallucination rates in voice cloning. With its advanced AI technology, Cartesia ensures crystal-clear audio that eliminates errors and maintains authenticity. This is a stark contrast to Lovo, which may produce less reliable outputs. Cartesia's commitment to high-quality voice cloning means that users can trust the accuracy and clarity of the generated speech, making it suitable for a wide range of applications where precision is paramount.
Voice Cloning Showdown
When it comes to voice cloning, Cartesia shines with its ability to create an instant clone from just 3 seconds of audio. This feature allows for unlimited instant voice cloning, making it a powerful tool for developers. In contrast, Lovo restricts cloning capabilities, requiring longer audio samples. Cartesia utilizes advanced embedding technology to ensure consistent, high-quality voice clones. Even in noisy environments, Cartesia preserves accents and voice quality, providing a more reliable solution for diverse applications.
Voice Design Control
Cartesia stands out by offering unique features like emotion and speed modulation, allowing users to refine voice adjustments while maintaining a natural sound. This capability enables users to create more engaging and personalized audio experiences. Additionally, Cartesia supports localization, enabling voices to adapt to different accents. In contrast, Lovo provides limited control options, focusing primarily on stability and similarity, which may not meet the needs of users seeking more dynamic voice design.
Explore Pricing for Cartesia and Lovo Voice AI
Cartesia
Free - $0 per month with 10k free credits
Pro - $5 per month with 100k credits
Startup - $49 per month with 1.25M credits
Scale - $299 per month with 8M credits
Enterprise - trusted by Fortune 500 companies
Lovo
Basic - $24 per month with 500 voices
Pro - $24.48 per month with 5 hrs voice generation
Pro + - $75 per month with 20 hrs voice generation
Custom solutions, dedicated support
What Cartesia Customers Say
Join the growing list of companies opting for Sonic.
"Cartesia’s voice API power dynamic and empathetic conversational experiences that are consistently dependable. What really stands out to me is how natural and considerate the responses feel—especially the empathetic tone in statements like ‘I’m sorry, that must be frustrating.’"
Sami Ghoche, CEO of Forethought
"In 1999, Salesforce brought software to the cloud. In 2025, 11x is killing software as we know it and unleashing the era of digital workers. To realise this vision, we needed AI voice technology that feels truly human. Cartesia’s technology gives our AI digital workers reps the speed, reliability, and natural expressiveness required to engage customers at scale.
It's the only solution fit for our relentless drive toward innovation.”
Keith Fearon, Head of Product & Growth, 11x
"Before conversational voice models like Cartesia, Thoughtly relied on legacy text-to-speech APIs from major cloud providers. Nearly two years later, the evolution of this technology is staggering—customers can clone their voice and hear it speaking autonomously over the phone in just 60 seconds.”
Torrey Leonard, CEO, Thoughtly
