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Voice AI research lab offering emotionally intelligent speech models and APIs for developers building empathic voice applications.
Text-to-speech and voice-typing assistant that reads PDFs and web pages aloud and dictates text across apps, for readers and multitaskers.
Free browser-based text-to-MP3 converter using Amazon Polly voices across 28+ languages with SSML controls.
Free online text-to-speech with 200+ voices across 70+ languages, exporting MP3 for creators and study use.
Free Chrome extension that reads aloud webpages, Google Docs, PDFs, and ebooks in 60+ languages with premium voice upgrades.
No public pricing
No public pricing
No public pricing
No public pricing
- ✦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
- ✦1,000+ natural-sounding AI voices in 60+ languages
- ✦Adjustable playback speed up to 5x
- ✦Text highlighting synced to audio
- ✦Scan-and-listen photo-to-speech
- ✦Voice dictation/typing across apps
- ✦AI podcast generation from documents
- ✦Voice AI assistant for Q&A on read content
- ✦Cloud storage integrations (Drive, Dropbox, OneDrive)
- ✦Text-to-MP3 conversion powered by AWS Polly
- ✦28+ languages and multiple regional accents/voices
- ✦SSML tags for pauses, emphasis, speed, and pitch
- ✦Multi-speaker conversation formatting
- ✦Daily free character limit (~3,000 characters)
- ✦200+ AI voices in 70+ languages
- ✦Text and document (PDF/TXT) to speech
- ✦Adjustable speech rate and pitch
- ✦MP3 download
- ✦Voice cloning and audiobook tools
- ✦Text-to-speech reading across webpages, Docs, PDFs, and email
- ✦Support for 60+ languages and 100+ voices
- ✦Adjustable reading speed, pitch, and volume
- ✦Background listening while browsing
- ✦Highlighting of text as it's read aloud
- ✦Minimal permissions with no data tracking claimed
- →Building empathic voice assistants
- →Measuring emotional expression in speech
- →Running human evaluations of voice models
- →Adding emotional intelligence to apps
- →Listening to long articles, PDFs or emails hands-free
- →Studying by having textbooks or lecture notes read aloud
- →Dictating text faster than typing across apps
- →Turning documents into podcast-style audio
- →Reducing eye strain from extensive reading
- →Creating narration for e-learning or presentations
- →Adding accessible audio to websites
- →Producing quick voiceovers for YouTube videos
- →Generating multi-character dialogue audio clips
- →Voice over YouTube or TikTok content
- →Convert documents to audio
- →Create audiobooks or study material
- →Language learners listening while reading text
- →People with reading disabilities or visual impairment
- →Multitasking users listening to articles or documents hands-free
- →Editors and writers catching errors by hearing their drafts read aloud