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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Chatbots
Research
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Image
Video
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Meetings
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Productivity
Audio
Writing
Agents
Dev Platform
Data
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Replicate
S
Lex
A
HeyGen
S
Granola
S
TaglineRun any open-source AI model with an API call.Google Docs with an AI collaborator baked in.AI avatar videos. Record once, speak any language.Meeting notes that don't suck. Runs locally, no bot joins.
CategoryDev PlatformWritingVideoMeetings
PricingPay per second of computeFree + $12/moFree + $24-$65/moFree + $18/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Essays, long-form drafts, thinking on the page.Course creators, multilingual marketers, anyone scaling video content.Founders, execs, consultants who live in calls.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • No bot in the call — runs on your Mac
  • Strong templates
  • Fast summaries
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Mac-only
  • Single-user by design
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.S-tier. Category-defining UX. If you take notes in meetings, switch this week.
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