Free plan: unlimited topics, generated segments each session, extend 1 extra segment per topic. Pro plan: $16.9/month (originally $29), includes unlimited segment extensions, unlimited deep-dive questions, and realtime AI voice playback. Month-to-month with no lock-in; cancel anytime.
Key features
Document analysis - attach PDFs, Word files or spreadsheets
Vision - analyze photos and images
53 open-source models from 15 labs
Code generation with syntax highlighting
Optional web search with Tavily or Exa API keys
Import custom GGUF models
Custom system prompts and instructions
Voice dictation and text-to-speech
iOS Shortcuts and Siri integration
Device compatibility detection before download
Generate infinite audio lessons on any topic
Structured audio course with overview and deep-dive segments
Real-time playback with segment generation during listening
Web and mobile access with no download required
Sentence-by-sentence highlighting for hands-free learning
Browse hundreds of curated topics or enter custom topics
Growing knowledge trail showing mastered topics and next steps
Unlimited deep-dive questions with Pro plan
What makes it different
All processing stays on your device with no account required
Works completely offline once a model is downloaded
Device memory compatibility shown before download
No internet connection required for core features
Choice of 53 models from 15 different labs
Never-ending: Segments keep generating as long as you listen, unlike fixed-episode podcasts
On-demand personalization: Generate content for any topic instantly, not what a host chose
Continuous learning: Knowledge trail builds across all listening sessions
Fits existing time: Learn during dead time—commutes, workouts and chores without needing dedicated study
Free to start with no payment barrier to try learning
KernelAI
Lambda Infinity