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Voice AI research lab offering emotionally intelligent speech models and APIs for developers building empathic voice applications.
Turns PDFs and pasted text into short TikTok-style meme videos aimed at students who want quicker, stickier study recall.
Free web tool for swapping one or many faces in photos and videos, aimed at memes and group-clip edits.
Online text-to-speech converting text, URLs, PDFs and images into natural multilingual AI voice audio.
Free browser-based text-to-speech tool with a large multilingual voice library and adjustable tone, speed, and pitch.
No public pricing
No public pricing
Free trial available
No public pricing
Free trial available
- ✦Empathic, emotionally intelligent voice models
- ✦Human-feedback and evaluation APIs
- ✦Open-source models and datasets
- ✦Coverage of 50+ languages and dozens of emotions
- ✦Expression measurement and speech tooling
- ✦Converts PDFs or pasted text into short meme-style study videos
- ✦Three output modes: quirky Brainrot, interactive Quiz, or plain Raw video
- ✦Selectable narrator voices with different accents and tones
- ✦Custom or library background music and video overlays
- ✦Works across any subject or document type
- ✦Fast turnaround, generating clips in seconds
- ✦Credit-based free daily allowance plus paid credit packs
- ✦Swaps multiple faces in one video simultaneously
- ✦Automatic face detection
- ✦Supports MP4, MOV and M4V up to 500MB or 10 minutes
- ✦Browser-based, no install, works on mobile
- ✦Uploaded files deleted after 7 days
- ✦Free to use
- ✦Sibling Beauty AI tools cover photo face swap, multi-picture swap and single video face swap
- ✦Text, URL, PDF and image to speech
- ✦Large multilingual AI voice library
- ✦Transcription and image translation
- ✦Voice cloning and speech-to-speech
- ✦Two-speaker AI podcast studio
- ✦Commercial-use audio downloads
- ✦Free online text-to-speech conversion, no signup required
- ✦Voice library spanning 25+ languages and regional accents
- ✦Adjustable speed, pitch, and emotional tone presets
- ✦Use cases for audiobooks, podcasts, and video dubbing
- ✦Separate paid desktop app for unlimited offline bulk conversion
- →Building empathic voice assistants
- →Measuring emotional expression in speech
- →Running human evaluations of voice models
- →Adding emotional intelligence to apps
- →Cramming for exams with entertaining, memorable clips
- →Teachers producing engaging content for remote or online classes
- →Turning lecture notes or articles into shareable social-style videos
- →Corporate trainers making quirky training or onboarding clips
- →Swapping faces in group videos
- →Creating memes and reaction clips
- →Editing photos for social sharing
- →Producing audiobooks and podcasts
- →Creating video voiceovers
- →Turning documents into audio
- →Making multilingual audio content
- →Narrating short stories or articles into audio
- →Creating voiceovers for videos or podcast intros
- →Generating multilingual audio clips for accessibility
- →Converting large documents to speech in bulk via the paid desktop app