Cartesia

Discover AI Dubbing for seamless multilingual video dubbing with Cartesia's ultra-fast solutions.

The online AI voice enhancer removes background noise from audio and video.

Generate lifelike AI voiceovers with Sonic, ranked #1 in blind listening tests. Natively multilingual, sub-90ms model latency, free to try, no sign-up.

The platform generates speech, powers voice applications, and supports fine-tuning users' own voice models.

The page presents a framework for evaluating ASR, TTS, and turn-detection models against real-world use cases rather than lab conditions.

Based is 56% and 44% faster at processing prompts than FlashAttention-2 and Mamba respectively. Based achieves 24x higher text generation throughput than FlashAttention-2.

Announcements, engineering deep-dives, and notes from the team building real-time AI.

Cartesia's text-to-speech platform is GDPR compliant.

The plans cover stages from an initial prototype to mission-critical voice infrastructure.

The page compares Descript alternatives for recording, transcript editing, video production, and speech APIs, and describes which parts of a workflow each tool covers.

Compare Amazon Polly alternatives for speech APIs and recorded audio. Check SSML, voice engines, audio formats, and migration work.

The page compares Fliki alternatives for narrated videos and speech generation, including which tools assemble videos and which supply audio.

Compare Murf AI alternatives for scripted narration and speech APIs. Test editing, exports, and streaming before choosing a tool.

The company is building AI described as ubiquitous, interactive intelligence that runs wherever users are.

Cartesia helps users get started building voice AI in production.

Integrate real-time text-to-speech with Sonic-3.6, Cartesia's streaming TTS API. Generate natural, expressive voices with laughter in 44 languages — built for AI agents and interactive apps.

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More than 50 library voices that now speak up to 25 languages natively

Sep 2026 · CartesiaNews article

Sonic-3.6 makes huge strides compared to Sonic-3.5 in naturalness and quality

Aug 2026 · CartesiaNews article

Cartesia releases Ink-2, a speech-to-text model designed for real-time voice agents. The company says the model ranks first on the Artificial Analysis streaming leaderboard.

Jul 2026 · CartesiaNews article

San Francisco-based Cartesia, which builds real-time voice AI agents, is launching operations in Bengaluru, India. The company is making the move with a $2.5 million investment, according to CEO Karan Goel.

Jan 2026 · The Economic TimesNews article