Cartesia vs Resemble
Discover key differences between Cartesia and Resemble AI voice models. Learn about features, pricing, and performance.
VS
Comparing Cartesia and Resemble AI Voice Models
Cartesia offers ultra-fast voice generation with a latency of just , ensuring real-time interactions. Its models provide ultra-realistic voices without hallucinations, making them ideal for various applications. In contrast, other options may not match this level of performance.
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
Resemble AI
170ms-3000ms
Higher quality voices for engaging content
Allows for extensive content generation
Requires 3 minutes of audio
Requires 10 minutes to an hour of audio
Enhanced clarity for complex terms
Flexible adjustments for personalized output
Designed for clear communication in calls
No on-device or on-prem support
149
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 delivers high-fidelity voice cloning with unmatched accuracy.
Ultra-Realistic Voices
Experience lifelike voices that are nearly indistinguishable from human speech.
No Hallucinations
Enjoy crystal-clear audio with no errors, ensuring authentic 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 Resemble AI. Cartesia's Sonic model has received high ratings in independent evaluations, achieving a score of 4.7 out of 5 for overall quality. This is significantly higher than Resemble AI's ratings, which tend to be lower in depth and reliability. Cartesia's voices are noted for their naturalness and emotional sensitivity, making them ideal for applications requiring high-quality audio output.
Latency Performance
Evaluating latency, Cartesia's Sonic model demonstrates impressive performance with a Time to First Audio (TTFA) of just 199 ms, significantly faster than Resemble AI's 832 ms. This measurement is calculated using the 90th percentile score from 100 TTFA measurements for each provider. Cartesia's architecture, based on State Space Models (SSMs), allows for greater latency optimization compared to traditional transformer architectures, ensuring quick and efficient audio generation.
Hallucination Rate Analysis
Cartesia excels in minimizing hallucination rates in voice generation. With its advanced AI voice cloning technology, it ensures crystal-clear audio that eliminates errors and maintains authenticity. In contrast, Resemble AI may experience higher rates of inaccuracies in voice replication. Cartesia's commitment to high-quality voice cloning means users can trust that the generated audio will be true to the original, making it a reliable choice for various applications.
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. In contrast, Resemble AI imposes restrictions on cloning capabilities, requiring longer audio samples. Cartesia's advanced embedding technology ensures high-quality voice clones that maintain clarity and authenticity, even with noisy original clips. Additionally, Cartesia's voice mixing and design features provide a broader range of diverse voices, making it a superior choice for voice cloning needs.
Voice Design Controllability
Cartesia stands out by offering unique features for voice design controllability, including emotion and speed modulation. This allows users to make refined adjustments while maintaining a natural auditory experience. Additionally, Cartesia supports localization, enabling voices to match different accents seamlessly. In contrast, Resemble AI provides limited control options, focusing mainly on stability and similarity, which may not meet the diverse needs of users seeking more dynamic voice customization.
Explore Pricing for Cartesia and Resemble 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
Resemble AI
Learn about pricing options for various needs
Includes priority support and volume discounts
Comprehensive plan for large-scale integrations
Tailored solutions for enterprise-scale needs
Offers premium support and extensive features
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
