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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
Ideogram
S
Lex
A
Claude Agent SDK
S
TaglineOpenAI's image model. Built into ChatGPT Plus.The one that actually gets text in images right.Google Docs with an AI collaborator baked in.Anthropic's SDK for building your own agents on Claude.
CategoryImageImageWritingAgents
PricingIncluded with ChatGPT Plus $20/moFree + $8/mo + $20/mo + $60/moFree + $12/moAPI usage + SDK is free
Best forChatGPT Plus users who want images without paying extra.Anything with text — posters, ads, album covers, slide decks.Essays, long-form drafts, thinking on the page.Developers building custom agents for their own company/product.
Strengths
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
Weaknesses
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Developer-only
  • You build the UI
Kai's verdictB-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.S-tier for text-in-image. Use this for posters, Midjourney for art.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier for builders. The right primitives. What Kai is built on under the hood.
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