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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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Chatbots
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Replicate
S
Replit Agent
A
Figma AI
A
ChatGPT Operator
B
TaglineRun any open-source AI model with an API call.Replit's AI that builds + deploys full apps on their platform.AI features baked into the design tool you already use.OpenAI's browser agent. Clicks and types on websites for you.
CategoryDev PlatformCodingDesignAgents
PricingPay per second of compute$10-$25/mo Core/TeamsIncluded with Figma plansIncluded with ChatGPT Pro $200/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Teachers, students, prototypers, hackathon builders.Designers already on Figma.Power users willing to pay $200/mo for a browser bot.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Full-stack + DB + auth + deploy in one environment
  • Great for teaching/learning
  • Runs everything in-browser
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Locked into Replit hosting
  • Less code quality than dedicated IDEs
  • Features vary by plan + region
  • Still rolling out
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier. Best for teaching a kid to code in 2026.A-tier. No reason not to use it if you're on Figma. Not worth switching for.B-tier. Still early. Manus is more flexible for less money.
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