ElevenLabs and Cartesia are two AI audio platforms compared based on features such as voice quality, pricing, and language support. ElevenLabs stands out with its extensive library of over 4,000 voices and support for more than 70 languages, offering unparalleled voice realism and a wide range of functionalities, including AI dubbing into 29 languages, professional voice cloning, and additional products like ElevenReader and Speech to Speech conversion. In contrast, Cartesia offers a more limited selection, supporting only 15 languages and around 130 preset voices, with basic instant voice cloning capabilities. Both platforms provide API access and pricing tiers catering to various user needs, but Cartesia is generally more cost-effective for simpler projects. While ElevenLabs is preferred for high-quality, multi-lingual, and long-form content projects, Cartesia may be suitable for users with less demanding requirements.