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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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GitHub Copilot
B
OpenRouter
S
Elicit
S
ChatGPT
S
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.One API, every model. Pay-as-you-go, no subscriptions.AI research assistant for academic literature.The default. Strongest ecosystem + best multimodal breadth.
CategoryCodingDev PlatformResearchChatbots
PricingFree (limited) + $10/mo Pro + $19/mo BusinessPay per token — model-dependentFree + $12-$42/moFree + $20/mo Plus + $200/mo Pro
Best forTeams with GitHub already. Devs who don't want to change IDEs.Developers experimenting across models. Apps that want fallback logic.Grad students, researchers, anyone doing literature reviews.General use, voice chat, image generation, first-time AI users.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • 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 voice mode
  • Huge plugin/custom GPT ecosystem
  • Strong image generation (DALL-E built in)
  • Code Interpreter
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Slight markup over direct API
  • Some provider features not exposed
  • Academic-only
  • Can hallucinate citations — verify everything
  • Reasoning quality varies by mode
  • Can be verbose
  • Confabulates on niche facts
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.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.S-tier all-rounder. If you want one tool that does everything okay-to-great, this is it.
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