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Updated Feb 24, 2024
Cartesia vs ElevenLabs: which one is better?
Cartesia vs ElevenLabs: which one is better?
Discover key differences between Cartesia and ElevenLabs voice AI models.
Discover key differences between Cartesia and ElevenLabs voice AI models.
Voice Quality
Highest quality voice model
Highest quality voice model
In head-to-head evaluations, our blinded human tests showed that Sonic-2 was preferred over ElevenLabs's Flash V2 model by a significant margin (61.4% vs 38.6%).
Blinded human evaluation is a method where evaluators assess generative voice model outputs without knowing which model produced them, helping reduce bias. The process involves presenting outputs from different generative voice model anonymously. This approach prevents evaluators' preconceived notions about specific generative voice model or their developers from influencing their assessment.
62%
preferred Cartesia over ElevenLabs (20%)
62%
preferred Cartesia over ElevenLabs (20%)
62%
preferred Cartesia over ElevenLabs (20%)
Latency
Cartesia is the world's fastest model available
Cartesia is the world's fastest model available
We measure latency using the model latency and the Time to First Audio (TTFA) latency from Asia, US and Europe. We calculate the 90th percentile score (P90) from 100 measurements for each provider.
Sonic 2 achieves a model latency of just 40ms
Sonic 2 achieves a model latency of just 40ms
Sonic 2 achieves a model latency of just 40ms
Stable latency between 128-135ms
Stable latency between 128-135ms
Stable latency between 128-135ms
State Space Models (SSMs) architecture
State Space Models (SSMs) architecture
State Space Models (SSMs) architecture
40ms
Cartesia's Sonic-2 model latency
40ms
Cartesia's Sonic-2 model latency
40ms
Cartesia's Sonic-2 model latency
Compare Cartesia and ElevenLabs Voice AI Models
Compare Cartesia and ElevenLabs Voice AI Models
Features
Cartesia
ElevenLabs
Latency
40ms for the Sonic Turbo model, 90ms for the Sonic 2.0 model
75 ms for the lower quality Flash Model, and 300ms+ for the full model
Voice Quality
Consistently rated as more natural, expressive, and realistic in blinded human evaluations
Less depth and reliability ratings in human evals
Character Limits
Infinite request length
Limited to 40k characters per request
Instant Cloning
Requires 3 seconds of audio
Requires 10 seconds of audio
Professional Voice Cloning
Requires 30 minutes of audio
Requires 60 minutes of audio
Pronunciation Accuracy
IPA support with strong contextual understanding
IPA support, isolated pronunciation
Voice Customizations
Fully customizable voice with speed and emotion controls + synthetic voice mixing and design
Stability, similarity, and style exaggeration controls
Telephony Optimization
8kHz audio, telephony optimized voices
8kHz audio, telephony optimized voices
Flexible Deployments
Supports both on-prem and on-device deployments
No on-device or on-prem support
Languages Supported
15 languages with extensive dialect coverage
32 languages
Concurrency
Up to 15 on highest self-serve tier (60 parallel conversations), custom for enterprise
Up to 15 on highest self serve tier, custom for enterprise
Pronunciation Accuracy
Excellent accuracy in every context
Excellent accuracy in every context
Best-in-class pronunciations: Get complex phone numbers, addresses, and IDs right every time.
CARTESIA
ELEVENLABS
CARTESIA
ELEVENLABS
CARTESIA
ELEVENLABS
Cartesia when pronouncing an abbreviated date like "Dec. 25, 2022” delivers a more human-like pronunciation of "December”.
Cartesia when pronouncing an abbreviated date like "Dec. 25, 2022” delivers a more human-like pronunciation of "December”.
ElevenLabs also offers reasonably accurate pronunciation, but tends to interpret it more literally.
ElevenLabs also offers reasonably accurate pronunciation, but tends to interpret it more literally.
Voice Cloning
Excellent accuracy in every context
Excellent accuracy in every context
Cartesia requires only 3 seconds of audio recording to create high-quality instant voice clones, while ElevenLabs needs 30 seconds.
Example with noisy background
Example with noisy background
Source
Source
Source
CARTESIA
ELEVENLABS
CARTESIA
ELEVENLABS
CARTESIA
ELEVENLABS
Cartesia better matches the original voice as well as the surrounding recording environment
Cartesia better matches the original voice as well as the surrounding recording environment
ElevenLabs struggles to separate background noise from human voices, resulting in lower-quality voice clones.
ElevenLabs struggles to separate background noise from human voices, resulting in lower-quality voice clones.
Example with Reporter in Wildfire
Example with Reporter in Wildfire
Source
Source
Source
CARTESIA
ELEVENLABS
CARTESIA
ELEVENLABS
CARTESIA
ELEVENLABS
Cartesia better preserves the accent and the surrounding recording environment
Cartesia better preserves the accent and the surrounding recording environment
ElevenLabs struggles to separate background noise from human voices, resulting in lower-quality voice clones.
ElevenLabs struggles to separate background noise from human voices, resulting in lower-quality voice clones.
Voice Design
Excellent voice design controllability
Excellent voice design controllability
Cartesia stands out as the only provider offering emotion and speed modulation features, enabling refined voice adjustments.
CARTESIA - NO DIALS
ELEVENLABS - NO DIALS
CARTESIA - NO DIALS
ELEVENLABS - NO DIALS
CARTESIA - NO DIALS
ELEVENLABS - NO DIALS
Cartesia emotion and speed dials convey very noticeable changes.
Cartesia emotion and speed dials convey very noticeable changes.
ElevenLabs voice sounds similar with the various dials applied.
ElevenLabs voice sounds similar with the various dials applied.
CARTESIA - Positivity Emotion Dial
ELEVENLABS - Highest Stability Dial
CARTESIA - Positivity Emotion Dial
ELEVENLABS - Highest Stability Dial
CARTESIA - Positivity Emotion Dial
ELEVENLABS - Highest Stability Dial
Cartesia's emotion and speed dials convey very noticeable changes.
Cartesia's emotion and speed dials convey very noticeable changes.
ElevenLabs voice sounds similar with the various dials applied.
ElevenLabs voice sounds similar with the various dials applied.
CARTESIA - Speed Dial
ELEVENLABS - Highest Similarity Dial
CARTESIA - Speed Dial
ELEVENLABS - Highest Similarity Dial
CARTESIA - Speed Dial
ELEVENLABS - Highest Similarity Dial
Cartesia's emotion and speed dials convey very noticeable changes.
Cartesia's emotion and speed dials convey very noticeable changes.
ElevenLabs voice sounds similar with the various dials applied.
ElevenLabs voice sounds similar with the various dials applied.
Pricing Plans for Cartesia and ElevenLabs
Pricing Plans for Cartesia and ElevenLabs
Cartesia
ElevenLabs
Free
$0 per month with 10k free credits
$0 per month with 10k characters
Pro
$5 per month with 100k credits
$5 per month with 30k characters
Startup
$49 per month with 1.25M credits
$11 per month with 100k characters
Scale
$299 per month with 8M credits
$99 per month with 500k characters
Enterprise
Trusted by Fortune 500 companies
$330 per month with 2M characters
Trusted by 50K+ Customers
Trusted by 50K+ Customers
What Cartesia Customers Say
Join the growing list of companies opting for Sonic.
Join the growing list of companies opting for Sonic.
Frequently asked questions
Frequently asked questions
How does voice cloning work?
How does voice cloning work?
How does voice cloning work?
What is the latency for voice generation?
What is the latency for voice generation?
What is the latency for voice generation?
Can I customize the cloned voice?
Can I customize the cloned voice?
Can I customize the cloned voice?
How many languages does Cartesia support?
How many languages does Cartesia support?
How many languages does Cartesia support?
Real-time, multimodal intelligence for every device.
Real-time, multimodal intelligence for every device.
Real-time, multimodal intelligence for every device.