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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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Dev Platform
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Coding
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Aider
A
Galileo AI
B
Manus
S
Perplexity
S
TaglineTerminal-based AI pair programmer. Git-aware, model-flexible.Prompt to UI design. Figma-ready outputs.Autonomous AI agent that actually finishes tasks.AI search done right. Cited answers, not chat theater.
CategoryCodingDesignAgentsResearch
PricingFree (open source) + whatever API you useFree trial + paid plansFree tier + $39-$199/moFree + $20/mo Pro
Best forDevelopers who want open-source tooling with full control.Designers brainstorming first drafts.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Prompt-to-UI with real layouts
  • Exports to Figma
  • Faster than hand-designing from scratch
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Output needs designer polish
  • Pricing unclear / changes often
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictA-tier. The right answer if you want open-source + terminal-native + model-agnostic.B-tier. Useful for first drafts. v0 is the better bet for shipping code.S-tier in the agent category. The first one I'd give to a non-technical friend.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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