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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
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Ideogram
S
DALL-E 3
B
Lex
A
Claude Agent SDK
S
TaglineThe one that actually gets text in images right.OpenAI's image model. Built into ChatGPT Plus.Google Docs with an AI collaborator baked in.Anthropic's SDK for building your own agents on Claude.
CategoryImageImageWritingAgents
PricingFree + $8/mo + $20/mo + $60/moIncluded with ChatGPT Plus $20/moFree + $12/moAPI usage + SDK is free
Best forAnything with text — posters, ads, album covers, slide decks.ChatGPT Plus users who want images without paying extra.Essays, long-form drafts, thinking on the page.Developers building custom agents for their own company/product.
Strengths
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • 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
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
Weaknesses
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Developer-only
  • You build the UI
Kai's verdictS-tier for text-in-image. Use this for posters, Midjourney for art.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.S-tier for builders. The right primitives. What Kai is built on under the hood.
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