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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
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Perplexity
S
Framer
A
Windsurf
A
Claude Agent SDK
S
TaglineAI search done right. Cited answers, not chat theater.Design + publish sites with AI assists built in.Codeium's agentic IDE. Cascade agent + strong free tier.Anthropic's SDK for building your own agents on Claude.
CategoryResearchDesignCodingAgents
PricingFree + $20/mo ProFree + $5-$30/moFree + $15/mo ProAPI usage + SDK is free
Best forReplacing Google for any question where you want a cited answer in seconds.Designers shipping marketing sites without engineers.Developers who want Cursor-like power for less money.Developers building custom agents for their own company/product.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • AI generates sections + copy + layouts
  • Designer-first publishing (not just templates)
  • Great animations
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Less flexible than raw code
  • Pricing per-site adds up
  • Smaller community
  • Model selection more limited
  • Developer-only
  • You build the UI
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier for designer-led sites. S-tier if animations matter.A-tier. Close second to Cursor. If $5/mo matters, start here.S-tier for builders. The right primitives. What Kai is built on under the hood.
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