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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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Manus
S
Genspark
A
GitHub Copilot
B
Elicit
S
TaglineAutonomous AI agent that actually finishes tasks.AI agent for deep search. Generates Sparkpages — full mini-reports.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.AI research assistant for academic literature.
CategoryAgentsResearchCodingResearch
PricingFree tier + $39-$199/moFree + $25/mo PlusFree (limited) + $10/mo Pro + $19/mo BusinessFree + $12-$42/mo
Best forPeople who want to hand off tasks entirely — trip planning, research, spreadsheet building.Travel planning, shopping comparisons, deep research where you want an artifact back.Teams with GitHub already. Devs who don't want to change IDEs.Grad students, researchers, anyone doing literature reviews.
Strengths
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Sparkpages = curated multi-source mini-articles
  • Agent can book, compare, shop
  • Autopilot agent for long tasks
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
Weaknesses
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Early-stage — rough edges
  • Less reliable than Perplexity for simple questions
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Academic-only
  • Can hallucinate citations — verify everything
Kai's verdictS-tier in the agent category. The first one I'd give to a non-technical friend.A-tier. Bet on this one — the Sparkpage format is genuinely new.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for academic research. Nothing else comes close for systematic reviews.
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