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Claude Agent SDK
S
Perplexity
S
ChatGPT Operator
B
Ideogram
S
TaglineAnthropic's SDK for building your own agents on Claude.AI search done right. Cited answers, not chat theater.OpenAI's browser agent. Clicks and types on websites for you.The one that actually gets text in images right.
CategoryAgentsResearchAgentsImage
PricingAPI usage + SDK is freeFree + $20/mo ProIncluded with ChatGPT Pro $200/moFree + $8/mo + $20/mo + $60/mo
Best forDevelopers building custom agents for their own company/product.Replacing Google for any question where you want a cited answer in seconds.Power users willing to pay $200/mo for a browser bot.Anything with text — posters, ads, album covers, slide decks.
Strengths
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
Weaknesses
  • Developer-only
  • You build the UI
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Aesthetic ceiling below Midjourney
  • Less style variety
Kai's verdictS-tier for builders. The right primitives. What Kai is built on under the hood.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.B-tier. Still early. Manus is more flexible for less money.S-tier for text-in-image. Use this for posters, Midjourney for art.
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