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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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Chatbots
Research
Coding
Image
Video
Voice
Meetings
Design
Productivity
Audio
Writing
Agents
Dev Platform
Data
Marketing
Education
Claude Agent SDK
S
ChatGPT Operator
B
Manus
S
Hex
A
TaglineAnthropic's SDK for building your own agents on Claude.OpenAI's browser agent. Clicks and types on websites for you.Autonomous AI agent that actually finishes tasks.Modern data notebook with Magic AI assistant.
CategoryAgentsAgentsAgentsData
PricingAPI usage + SDK is freeIncluded with ChatGPT Pro $200/moFree tier + $39-$199/moFree + $28+/user/mo
Best forDevelopers building custom agents for their own company/product.Power users willing to pay $200/mo for a browser bot.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Data teams at startups + enterprises.
Strengths
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • SQL + Python + no-code in one notebook
  • Magic AI writes queries + viz for you
  • Team-grade collaboration
Weaknesses
  • Developer-only
  • You build the UI
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Overkill for casual users
  • Enterprise pricing
Kai's verdictS-tier for builders. The right primitives. What Kai is built on under the hood.B-tier. Still early. Manus is more flexible for less money.S-tier in the agent category. The first one I'd give to a non-technical friend.A-tier for data teams. S-tier if you already live in SQL + Python.
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