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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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Windsurf
A
OpenRouter
S
Elicit
S
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.One API, every model. Pay-as-you-go, no subscriptions.AI research assistant for academic literature.
Categorycodingdev platformresearch
PricingFree + $15/mo ProPay per token — model-dependentFree + $12-$42/mo
Best forDevelopers who want Cursor-like power for less money.Developers experimenting across models. Apps that want fallback logic.Grad students, researchers, anyone doing literature reviews.
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • 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
Weaknesses
  • Smaller community
  • Model selection more limited
  • Slight markup over direct API
  • Some provider features not exposed
  • Academic-only
  • Can hallucinate citations — verify everything
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.S-tier for model-shopping. I use this for every prototype before committing.S-tier for academic research. Nothing else comes close for systematic reviews.
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