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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
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A
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Replicate
S
TaglineAI research assistant for academic literature.Google's answer. Best integrated with Workspace + free for a lot.Open-source VS Code agent. Reads + writes + runs.Run any open-source AI model with an API call.
CategoryResearchChatbotsCodingDev Platform
PricingFree + $12-$42/moFree + $20/mo Advanced (bundled with 2TB Drive)Free (open source) + your API costsPay per second of compute
Best forGrad students, researchers, anyone doing literature reviews.Anyone already on Google, research tasks, summarizing long documents.VS Code users who want agentic coding without changing IDEs.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Academic-only
  • Can hallucinate citations — verify everything
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictS-tier for academic research. Nothing else comes close for systematic reviews.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.A-tier. Best free agentic option in VS Code. Use with Claude for best results.S-tier for open-source model APIs. The default in this space.
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