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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.
Pick tools (4 selected)
Chatbots
Research
Coding
Image
Video
Voice
Meetings
Design
Productivity
Audio
Writing
Agents
Dev Platform
Data
Marketing
Education
Perplexity
S
Replicate
S
Hex
A
Grammarly
A
TaglineAI search done right. Cited answers, not chat theater.Run any open-source AI model with an API call.Modern data notebook with Magic AI assistant.Grammar check + tone + AI drafting, everywhere you type.
CategoryResearchDev PlatformDataWriting
PricingFree + $20/mo ProPay per second of computeFree + $28+/user/moFree + $12-$15/mo Premium + team plans
Best forReplacing Google for any question where you want a cited answer in seconds.Developers using open-source models (Flux, SDXL, Whisper, etc).Data teams at startups + enterprises.Non-native English writers, business email, anyone who types a lot.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • SQL + Python + no-code in one notebook
  • Magic AI writes queries + viz for you
  • Team-grade collaboration
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Overkill for casual users
  • Enterprise pricing
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for open-source model APIs. The default in this space.A-tier for data teams. S-tier if you already live in SQL + Python.A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.
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