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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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Claude Agent SDK
S
Perplexity
S
Ideogram
S
Fathom
S
TaglineAnthropic's SDK for building your own agents on Claude.AI search done right. Cited answers, not chat theater.The one that actually gets text in images right.Meeting notes, free forever for individuals.
CategoryAgentsResearchImageMeetings
PricingAPI usage + SDK is freeFree + $20/mo ProFree + $8/mo + $20/mo + $60/moFree for individuals + $15-$29/user/mo teams
Best forDevelopers building custom agents for their own company/product.Replacing Google for any question where you want a cited answer in seconds.Anything with text — posters, ads, album covers, slide decks.Solo operators, freelancers, small teams on a budget.
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
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
Weaknesses
  • Developer-only
  • You build the UI
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • Bot-joining model
  • Team features gated
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.S-tier for text-in-image. Use this for posters, Midjourney for art.S-tier for solo + free. The best free option, hands down.
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