Cartesia vs Murf
Comparing Cartesia and Murf AI voice models for performance and features. Discover the best fit for your needs.
VS
Comparing Cartesia and Murf AI Voice Models
Cartesia offers ultra-fast voice generation with a latency of 40ms, ensuring real-time interactions. In contrast, other models may experience higher latency, impacting user experience. Cartesia's voices are lifelike and free from hallucinations, providing a more authentic audio experience.
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
Murf AI
Higher latency, impacting responsiveness
Lower quality ratings in evaluations
Limited character count for longer texts
Not supported
Requires at least 20 minutes of audio recording with minimal background noise and no overlapping voices
Less contextual awareness in pronunciation
Limited customization options available
Basic telephony optimization features
No on-device or on-prem support
20
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.
Low Latency Performance
Cartesia's Sonic model boasts a latency of just 40ms, ensuring rapid voice generation.
High-Quality Voice Cloning
Cartesia enables instant voice cloning with just 3 seconds of audio, ensuring high fidelity.
Ultra-Realistic Voices
With advanced embedding technology, Cartesia delivers lifelike voice clones that capture nuances.
Enterprise Ready
Enterprise-grade reliability with 99.9% uptime, SOC2 compliance, and full on-premises support.
Voice Quality Comparison
In evaluating voice quality, Cartesia consistently outperforms Murf AI. Cartesia's Sonic model has been rated highly in independent evaluations, achieving a score of 4.7 for overall quality compared to Murf AI's lower ratings. The voices produced by Cartesia are often described as more natural and realistic, making them ideal for applications requiring high fidelity. This is supported by a human preference ranking where Cartesia was preferred in 36 out of 50 evaluations, showcasing its superior voice clarity and emotional sensitivity.
Latency Analysis
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 Murf AI, 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 near-instantaneous responses, making Cartesia a preferred choice for real-time applications.
Hallucination Rate Check
Cartesia stands out with its commitment to eliminating hallucinations in voice generation. The AI voice cloning technology ensures crystal-clear audio, maintaining authenticity and accuracy. In contrast, Murf AI may experience inconsistencies in voice replication, leading to potential distortions. Cartesia's advanced algorithms focus on delivering high-fidelity outputs, ensuring that users receive reliable and lifelike voice clones without the risk of hallucinations, making it a trustworthy option for critical applications.
Voice Cloning Showdown
When it comes to voice cloning, Cartesia excels 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 various applications. In contrast, Murf AI imposes restrictions on cloning capabilities, limiting the flexibility for users. Cartesia's advanced embedding technology ensures high-quality voice clones that maintain accents and voice quality, even in noisy conditions. Additionally, Cartesia's voice mixing and design capabilities provide a wider range of diverse voices, enhancing the overall user experience.
Voice Design Controllability
Cartesia offers unique voice design controllability features that set it apart from Murf AI. It is the only provider that allows users to adjust emotion and speed modulation, enabling refined voice adjustments while maintaining a natural sound. Additionally, Cartesia supports localization, allowing voices to adapt to various accents seamlessly. In contrast, Murf AI provides limited control options, lacking the depth of customization available with Cartesia, which enhances the overall user experience in voice applications.
Pricing Comparison for Cartesia and Murf 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
Murf AI
Starter - $19 per month with 50k credits and basic features
Basic - $49 per month with 200k credits and essential features
Professional - $99 per month with 500k credits and advanced features
Enterprise - $499 per month with 2M credits and premium features
Custom - Pricing based on usage and 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
