Cartesia vs Fliki
Discover the differences between Cartesia and Fliki voice AI models. Compare features, pricing, and performance.
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Compare Cartesia and Fliki Voice AI Models
Cartesia offers ultra-fast voice generation with a latency of just 90ms, ensuring real-time interactions. Its models provide ultra-realistic voices without hallucinations, making them ideal for various applications.
Updated at:
Feb 14, 2025
Features
Cartesia
90 ms + network time
Consistently rated as more natural, expressive, and realistic in blinded human evaluations
Infinite request length
Requires 5-10 seconds of audio
IPA Support, strong contextual understanding
Slider control for speed and emotion + synthetic voice mixing and design
8kHz audio, telephony optimized voices
Real-time generation on-device
33 languages with extensive dialect coverage
Up to 15 on highest self serve tier, custom for enterprise
Fliki
Higher latency, impacting responsiveness
Higher quality voices for engaging content
Unlimited context for better prosody
Not supported
Not supported
Improved pronunciation for complex terms
Basic customization options available
Standard audio quality for telephony
Limited on-device capabilities
80
Limited concurrent usage options
Voice Quality Comparison
In the realm of voice quality, Cartesia consistently outperforms its competitors. With a NISQA score of 4.7, Cartesia's Sonic model is recognized for its natural and realistic voice output. In contrast, Fliki's voice quality ratings fall short, averaging around 4.38. Cartesia's advanced state space model architecture allows for superior audio clarity and emotional sensitivity, making its voices nearly indistinguishable from human speech. This level of quality is crucial for applications in customer support, healthcare, and media.
Latency Performance Review
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 Fliki, 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 low latency ensures that responses are quick and natural, enhancing user experience in real-time applications.
Hallucination Rate Analysis
Cartesia's voice cloning technology boasts a no hallucination feature, ensuring that the generated audio is clear and accurate. This is a significant advantage over Fliki, which may experience distortions in its output. Cartesia's advanced algorithms eliminate errors and maintain the authenticity of the voice clone, making it reliable for various applications. The focus on high-quality audio without hallucinations is essential for maintaining user trust and satisfaction in voice AI solutions.
Voice Cloning Showdown
When it comes to voice cloning, Cartesia shines with its ability to create an instant clone from just 5 seconds of audio. This feature allows for unlimited instant voice cloning, making it a powerful tool for developers. In contrast, Fliki imposes restrictions on cloning capabilities. Cartesia employs advanced embedding technology to ensure high-quality voice clones that maintain clarity and authenticity, even in noisy environments. Additionally, Cartesia's voice mixing and design capabilities provide a wider array of diverse voices for various applications.
Voice Design Controllability
Cartesia stands out by offering unique features for voice design controllability. It allows users to modulate emotion and speed, enabling refined voice adjustments while maintaining a natural sound. Additionally, Cartesia supports localization, letting users adapt an American voice to speak with a French accent, for example. In contrast, Fliki provides limited control options, focusing primarily on stability and similarity, which may not meet the diverse needs of developers seeking customization.
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 achieves a latency of just 199 ms, ensuring rapid responses.
High-Quality Voice Cloning
Instantly clone voices with just 5 seconds of audio, ensuring high fidelity and clarity.
Ultra-Realistic Voices
Cartesia's voices are nearly indistinguishable from human speech, enhancing user engagement.
Explore Pricing for Cartesia and Fliki
Cartesia
Free - $0/mo. per month with 10k free credits
Pro - $5/mo. per month with 100k credits
Startup - $49/mo. per month with 1.25M credits
Scale - $299/mo. per month with 8M credits
Enterprise - trusted by Fortune 500 companies
Fliki
Basic features for beginners
Enhanced features for creators
Advanced features for teams
Comprehensive features for enterprises
Designed for large organizations
What Cartesia customers say
Join the growing list of companies opting for Sonic.
"This partnership represents a transformative moment in enterprise AI adoption," said Melissa Gordon, CEO of Rasa. "By combining Rasa’s strengths in enterprise conversational AI with Cartesia's innovative voice technology, we're fundamentally changing how enterprises can deploy and scale AI assistants across their organizations."
"We're thrilled to partner with Cartesia - their technology has dramatically improved the accuracy and reliability of our call center agents. Beyond just providing best-in-class voice AI, the Cartesia team has been a true partner in helping us transform 24/7 patient support for over 215,000 patients. Their support has been instrumental in making exceptional care accessible anytime, anywhere."
Jeffrey Liu, Founder and co-CEO, Assort Health
"Together AI's mission has always been to provide developers with the most powerful and efficient tools for building AI applications," says Vipul Ved Prakash, Together AI's CEO. "Cartesia is leading the charge of building efficient, multimodal models from first principles, starting with their Sonic TTS model. By integrating Sonic into our platform, we're enabling developers to create sophisticated multi-modal applications that leverage the most advanced and lowest latency voice model available today, all while maintaining the simplicity and reliability our users expect."
