Alternatives to Cartesia

AI audio platform: text to speech, voice cloning, transcription and phone/chat voice agents on one shared credit pool.

Typecast's text-to-speech API delivers Smart Emotion voices and streaming TTS at 170-210ms for real-time agents.

Smallest.ai delivers realtime text-to-speech, speech-to-text, speech-to-speech and voice agents on one developer API.

Deepgram sells speech-to-text, text-to-speech and a one-call Voice Agent API, with Flux STT doing turn detection and interruption handling for live agents.

Murf AI pairs a real-time text-to-speech API for voice agents with a studio and dubbing suite for creators.

Fish Audio delivers expressive AI text-to-speech and 15-second voice cloning across 30+ languages with emotion tags.

Inworld TTS is a realtime text to speech API with first audio in as little as 50 ms, 3-second voice cloning and 500+ languages

Generate natural-sounding text to speech in 142+ languages with 1,000+ AI voices, all in a browser voiceover studio.

Verbatik turns text into speech in 150+ languages, then layers on voice cloning, avatar video, AI music and sound effects.

ComfyUI VoxCPM runs open-source multilingual text-to-speech with voice cloning and voice design on your own GPU.

Voicemaker converts text to speech in 140 languages with 1,000+ AI voices, plus SuperTTS cinematic audio from a single prompt

VoxCPM2 delivers tokenizer-free TTS with 30-language speech synthesis, Voice Design, and 48kHz voice cloning on your own GPU.

Open-source Japanese text-to-speech where a single emoji in your text steers tone, emphasis and delivery

Speaktor turns text, Word, PDF, and TXT files into MP3, WAV, or SRT text to speech in 55+ languages — including voiceover translation into

Conversational text-to-speech API for live phone calls, with Mist v3 hitting 37 ms TTFA and on-prem deployment.

Open-source Vietnamese text-to-speech voice cloning checkpoint you self-host on your own GPU

Luvvoice converts text to speech in 200+ AI voices across 70+ languages and downloads as MP3 — free to start.

Free character voice text-to-speech — 20,263+ anime, game, film and celebrity voices with a free public API.

Speechify Studio's AI voice generator: 1,000+ voices across 60+ languages, plus dubbing, cloning, AI avatars and captions in one suite

Free real-time voice changer and 10-second voice cloning, plus enterprise AI voice agents that handle inbound and outbound calls.

Voicebox is an open-source desktop AI voice studio for local voice cloning, dictation, and agent speech — no account required, MIT licensed.

Real-time speech AI that softens accents, translates 25+ languages, and cleans up call audio while keeping the speaker's own voice

Open-source text-to-speech with fine-grained emotion and prosody control

Soprano TTS: a free Hugging Face Space for instant neural text-to-speech in your browser

Noiz AI clones a voice from 3 seconds and turns text, video, and images into emotional AI voiceover.

AI text-to-speech that turns text, PDFs, images and physical books into natural audio for personal, commercial and EDU use

Hume AI measures 600+ dimensions of vocal and facial expression to evaluate whether voice AI actually feels understood.

AivisSpeechは無料で使える日本語音声合成ソフト。感情豊かなナレーションをCPUだけでも生成できます。

All-in-one AI voice generator and online video editor for creators, marketers, and educators.

WellSaid is an AI voice generator that bills you for downloaded voiceover minutes, not for every line you regenerate.