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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
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Image
Meetings
Design
Productivity
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Data
Marketing
Education
Claude Agent SDK
S
Recraft
S
DeepSeek
S
TaglineAnthropic's SDK for building your own agents on Claude.Vector + raster AI for designers. Actually controls the output.Chinese open-weight powerhouse. Crazy cheap, genuinely smart.
CategoryAgentsImageChatbots
PricingAPI usage + SDK is freeFree + $12-$48/moFree web + ultra-cheap API (~$0.14/M input tokens)
Best forDevelopers building custom agents for their own company/product.Designers, brand teams, anyone needing vector output or tight style control.Developers + cost-conscious builders. Anyone fine with self-hosting.
Strengths
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Exports SVG vectors — rare in AI image gen
  • Strong style control + consistency
  • Brand kit for consistent outputs
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
Weaknesses
  • Developer-only
  • You build the UI
  • Less hyped than Midjourney
  • Learning curve for non-designers
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
Kai's verdictS-tier for builders. The right primitives. What Kai is built on under the hood.S-tier for designers. The only one that takes vectors seriously.S-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.
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