Best Step-Audio Alternatives in 2025
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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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Higgs Audio V2: Open-source AI audio model for expressive, human-like speech. Generate multi-speaker dialogue, clone voices, and adapt emotions without fine-tuning.
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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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Liquid Audio: Unparalleled real-time speech-to-speech AI. Low-latency, high-fidelity ASR & TTS for developers to build natural voice apps.
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MegaTTS3: AI TTS for bilingual voice generation (EN/CN). Lightweight, voice cloning, & accent control. Open-source!
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VibeVoice: Free online AI text-to-speech. Instantly create realistic, multi-speaker audio conversations up to 90 mins. No downloads or signup!
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Tired of robotic voices? Hume Octave creates realistic, expressive AI voice performances you can direct with context & emotion.
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Kimi-Audio: Open-source foundation model for universal audio AI. Speech, analysis, generation – one framework. SOTA performance.
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Aero-1-Audio: Efficient 1.5B model for 15-min continuous audio processing. Accurate ASR & understanding without segmentation. Open source!
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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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OpenAI.fm: Realistic text-to-speech for developers. Try diverse voices & emotions via API. Download audio!
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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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VibeVoice generates expressive, multi-speaker long-form audio from text. Get natural podcasts & audio dramas with consistent voices.
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Dia AI: Generate realistic multi-speaker dialogue with emotion & non-verbal cues. Open-source voice cloning & natural conversations.
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Seed-TTS is a text-to-speech (TTS) model developed by ByteDance, renowned for its ability to generate natural and realistic speech.
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Generate studio-quality voiceovers instantly. Speakatoo AI text to speech offers 1900+ voices, 130+ languages, plus voice cloning.
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Sonic: Ultra-low latency TTS is here, the first chunk 100ms +, supports multiple languages.
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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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Clone voices & generate lifelike speech in 50+ languages with Open-VoiceCanvas. Open-source, customizable TTS platform.
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Chatterbox TTS: Your production-grade, open source AI voice solution. Get high-fidelity speech with unique emotion exaggeration control.
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Transform your podcasts & chatbots with FireRedTTS-2: natural, multi-speaker long-form speech. Enjoy ultra-low latency & multilingual voice cloning.
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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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AsyncAI API: Get fast, lifelike Text to Speech & instant Voice Cloning from just 3s audio. Easy integration for developers.
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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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ChatTTS is a voice generation model designed for conversational scenarios, specifically for the dialogue tasks of large language model (LLM) assistants, as well as applications such as conversational audio and video introductions.
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Create realistic AI voices for commercial use. Discover 500+ natural text-to-speech voices with full commercial license & multi-language support.
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Unlock the power of ultra-realistic AI Voices with PlayHT's AI Voice Generator. Perfect for audio projects and localization, get started today!
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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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Hertz-Dev is an open-source audio model. With ultra-low latency, efficient compression, powerful language modeling & high-quality generation. Ideal for customer support, AI companions & assistive tools. Empower your AI projects.
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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.