Best Cartesia Sonic Alternatives in 2025
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Sonic: Ultra-low latency TTS is here, the first chunk 100ms +, supports multiple languages.
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PlayAI: The AI Voice Platform for ultra-realistic, multi-lingual voices. Features high-fidelity text-to-speech, voice cloning & deep customization.
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AsyncAI API: Get fast, lifelike Text to Speech & instant Voice Cloning from just 3s audio. Easy integration for developers.
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Layercode: Build production-ready, low-latency voice AI agents for LLMs. Developers get global edge infrastructure & real-time scalability.
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Build real-time AI voice apps! RealtimeVoiceChat is open-source, low-latency, & customizable. Use your choice of LLMs, STT, & TTS engines. Docker deploy!
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Voiceflow: The collaborative platform for no-code AI chat & voice agents. Rapidly build, deploy, & scale human-like conversational AI for your business.
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Speechmatics: Real-time AI speech-to-text API. Unmatched 90%+ accuracy & speed for 55+ languages. Power enterprise voice apps.
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NeuTTS Air: World's first on-device voice AI. Get super-realistic Text-to-Speech & instant cloning with real-time, secure, cloud-free performance.
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Voice.ai: The versatile AI platform for voice. Transform your voice, create audio from text, and automate calls with powerful AI agents.
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Inworld TTS: Ultra-realistic, real-time voice AI for dynamic characters. Experience expressive speech, sub-second latency & voice cloning for immersive digital worlds.
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A free, all-in-one audio tool to generate realistic text-to-speech voiceovers and a vast library of high-quality sound effects. Perfect for videos, podcasts, and creative projects.
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Voicv: Your comprehensive AI audio toolkit. Clone voices, generate speech, & transcribe audio quickly for creators & businesses.
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Ultravox.ai: Next-gen enterprise Voice AI for human-like, real-time conversations. Scale massively, eliminate lag & power smarter agents.
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World's fastest AI text-to-speech: Lightning! Get crystal-clear, natural voices for apps, content, assistants & more.
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Palabra AI delivers seamless, real-time AI speech translation with near-zero latency. Communicate globally, privately & accurately.
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Voispark is an all-in-one voice AI studio that integrates 11 top-tier AI engines like ElevenLabs and Cartersia to deliver high-quality TTS, voice cloning, voice changing, and conversational audio - all in one simple platform.
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Build instant, human-like voice agents with Millis AI. Achieve ultra-low 600ms latency effortlessly using no-code tools & integrate anywhere.
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All Voice Lab is the AI voice platform for ultra-realistic TTS & voice cloning. Powered by SOTA MaskGCT 2.0 model. Multilingual, expressive audio for creators & devs.
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SoundHound AI: Pioneer in Voice AI agents for enterprise. Deliver best-in-class customer service, automate operations & unlock new revenue opportunities.
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Synthesys.io is an all-in-one AI content suite for marketers, creators & businesses. 400+ voices, 70+ avatars, 140+ langs.
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Discover Step - Audio, the first production - ready open - source framework for intelligent speech interaction. Harmonize comprehension and generation, support multilingual, emotional, and dialect - rich conversations.
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Clone voices & generate lifelike speech in 50+ languages with Open-VoiceCanvas. Open-source, customizable TTS platform.
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Voices.ai is the best AI voice developer platform for running cloning and deploying AI voices at scale.
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VoxCPM: Realistic, tokenizer-free AI Text-to-Speech. Get context-aware speech generation & true-to-life voice cloning for natural audio.
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Enhance your applications with AssemblyAI's powerful AI models for accurate transcription and understanding of human speech.
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Discover Deepgram's Voice AI platform. It offers APIs for speech - to - text, text - to - speech, and more. With 30% higher accuracy, 40x faster speeds, and 3 - 5x lower costs than competitors, it's perfect for developers, businesses, and researchers.
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Bring content to life with ReadSpeaker's realistic AI voices. Flexible, secure text-to-speech for accessibility, engaging experiences, and custom branding.
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Supertone AI: Professional, expressive audio with voice cloning, cleanup & real-time performance. Create high-quality sound easily.
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Chirp 3: AI voices in 31 languages! Create custom, natural-sounding speech for global apps & content. Secure & scalable.
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Generate studio-quality voiceovers instantly. Speakatoo AI text to speech offers 1900+ voices, 130+ languages, plus voice cloning.
