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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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Elicit
S
ChatGPT Operator
B
Manus
S
TaglineAI research assistant for academic literature.OpenAI's browser agent. Clicks and types on websites for you.Autonomous AI agent that actually finishes tasks.
CategoryResearchAgentsAgents
PricingFree + $12-$42/moIncluded with ChatGPT Pro $200/moFree tier + $39-$199/mo
Best forGrad students, researchers, anyone doing literature reviews.Power users willing to pay $200/mo for a browser bot.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.
Strengths
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
  • 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
Weaknesses
  • Academic-only
  • Can hallucinate citations — verify everything
  • 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
Kai's verdictS-tier for academic research. Nothing else comes close for systematic reviews.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.
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