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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
Replicate
S
Claude Agent SDK
S
ChatGPT Operator
B
Figma AI
A
TaglineRun any open-source AI model with an API call.Anthropic's SDK for building your own agents on Claude.OpenAI's browser agent. Clicks and types on websites for you.AI features baked into the design tool you already use.
CategoryDev PlatformAgentsAgentsDesign
PricingPay per second of computeAPI usage + SDK is freeIncluded with ChatGPT Pro $200/moIncluded with Figma plans
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Developers building custom agents for their own company/product.Power users willing to pay $200/mo for a browser bot.Designers already on Figma.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Developer-only
  • You build the UI
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Features vary by plan + region
  • Still rolling out
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for builders. The right primitives. What Kai is built on under the hood.B-tier. Still early. Manus is more flexible for less money.A-tier. No reason not to use it if you're on Figma. Not worth switching for.
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