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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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TaglineRun any open-source AI model with an API call.Meeting notes that don't suck. Runs locally, no bot joins.Autonomous AI agent that actually finishes tasks.The one that actually gets text in images right.
CategoryDev PlatformMeetingsAgentsImage
PricingPay per second of computeFree + $18/moFree tier + $39-$199/moFree + $8/mo + $20/mo + $60/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Founders, execs, consultants who live in calls.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Anything with text — posters, ads, album covers, slide decks.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • No bot in the call — runs on your Mac
  • Strong templates
  • Fast summaries
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Mac-only
  • Single-user by design
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Aesthetic ceiling below Midjourney
  • Less style variety
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier. Category-defining UX. If you take notes in meetings, switch this week.S-tier in the agent category. The first one I'd give to a non-technical friend.S-tier for text-in-image. Use this for posters, Midjourney for art.
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