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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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DALL-E 3
B
Lex
A
ChatGPT Operator
B
TaglineRun any open-source AI model with an API call.OpenAI's image model. Built into ChatGPT Plus.Google Docs with an AI collaborator baked in.OpenAI's browser agent. Clicks and types on websites for you.
Categorydev platformimagewritingagents
PricingPay per second of computeIncluded with ChatGPT Plus $20/moFree + $12/moIncluded with ChatGPT Pro $200/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).ChatGPT Plus users who want images without paying extra.Essays, long-form drafts, thinking on the page.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
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • 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
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • 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.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.B-tier. Still early. Manus is more flexible for less money.
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