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TaglineVS Code fork that made AI coding actually work.AI-powered networked notes. Roam with a brain.Voice AI that reads + expresses emotion.Run any open-source AI model with an API call.
CategoryCodingProductivityVoiceDev Platform
PricingFree + $20/mo Pro + $40/mo Business$10/moFree tier + pay-as-you-goPay per second of compute
Best forDevelopers. Non-developers who want to ship working code.Knowledge workers + thinkers who want AI in their second brain.Therapy apps, customer service, any voice agent where emotion matters.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • AI auto-links related notes
  • Generates backlinks + summaries
  • Clean, minimal UX
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Expensive for just notes
  • Smaller community than Obsidian
  • Niche use case
  • Pricing ramps fast
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.A-tier. Niche but beloved. If you've outgrown Notion, try this.A-tier in its niche. The only one that actually gets emotion right.S-tier for open-source model APIs. The default in this space.
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