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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
Audio
Research
Agents
Coding
Chatbots
Image
Video
Voice
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Framer
A
Perplexity
S
Sora
A
Claude Agent SDK
S
TaglineDesign + publish sites with AI assists built in.AI search done right. Cited answers, not chat theater.OpenAI's video model. Long clips, cinematic quality.Anthropic's SDK for building your own agents on Claude.
CategoryDesignResearchVideoAgents
PricingFree + $5-$30/moFree + $20/mo ProIncluded with ChatGPT Plus/ProAPI usage + SDK is free
Best forDesigners shipping marketing sites without engineers.Replacing Google for any question where you want a cited answer in seconds.ChatGPT subscribers experimenting with cinematic shots.Developers building custom agents for their own company/product.
Strengths
  • AI generates sections + copy + layouts
  • Designer-first publishing (not just templates)
  • Great animations
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
Weaknesses
  • Less flexible than raw code
  • Pricing per-site adds up
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Developer-only
  • You build the UI
Kai's verdictA-tier for designer-led sites. S-tier if animations matter.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier for builders. The right primitives. What Kai is built on under the hood.
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