Create expressive, controllable speech layered with emotion and natural pacing, powered by top-tier neural models.
10,000 free credits every month, no credit card required
Our voice AI responds to emotional cues in text and adapts its delivery to suit both the immediate content and the wider context. This lets the voices reach a high emotional range and avoid logical slips when your content is read aloud.
“Welcome to SonnaLabs, [pause] where your words turn into lifelike speech in seconds.”
Generate realistic multi-speaker dialogues where voices share context, timing and emotional flow.
Pick from over 10,000 professional voices from ElevenLabs, HeyGen and Google, tuned for natural narration.
Synthesize clear, lifelike speech in 90+ languages with automatically detected accents and local dialects.
Narrate YouTube videos, ads and explainers with a clear, natural voice.
Record intros, ads and whole episodes without a microphone or a studio.
Turn long manuscripts into narration with voices built for long reads.
Give chatbots and voice agents a natural voice, with low-latency models for fast replies.
Give every character a distinct voice, full of emotion and personality.
Read articles, lessons and documents aloud for people who prefer to listen.
Accents and local dialects are detected automatically.
Natural, highly expressive voices for realism. Use Eleven v4 for the most emotive speech, Multilingual v2 for long narrations, or Flash v2.5 for low-latency replies.
Studio-quality voices that each speak 39 languages. Choose HeyGen Voice for top quality, or HeyGen Voice Turbo for fast, low-cost speech.
Consistent, reliable voices for global audiences. Neural2 and Wavenet cover a wide range of languages, accents and local dialects.
Fine-tune every generation: speed from 0.5x to 2.0x, stability, similarity boost, style exaggeration, speaker boost.