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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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OpenRouter
S
Elicit
S
GitHub Copilot
B
Cursor
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.AI research assistant for academic literature.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.VS Code fork that made AI coding actually work.
Categorydev platformresearchcodingcoding
PricingPay per token — model-dependentFree + $12-$42/moFree (limited) + $10/mo Pro + $19/mo BusinessFree + $20/mo Pro + $40/mo Business
Best forDevelopers experimenting across models. Apps that want fallback logic.Grad students, researchers, anyone doing literature reviews.Teams with GitHub already. Devs who don't want to change IDEs.Developers. Non-developers who want to ship working code.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Academic-only
  • Can hallucinate citations — verify everything
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Can feel overwhelming for non-coders
  • Expensive at scale
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.S-tier for academic research. Nothing else comes close for systematic reviews.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.
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