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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
Ollama
S
Perplexity
S
OpenRouter
S
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Run LLMs locally. One-line install, GUI optional.AI search done right. Cited answers, not chat theater.One API, every model. Pay-as-you-go, no subscriptions.
Categorycodingdev platformresearchdev platform
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree + open sourceFree + $20/mo ProPay per token — model-dependent
Best forTeams with GitHub already. Devs who don't want to change IDEs.Devs wanting offline/local LLMs for privacy or experimentation.Replacing Google for any question where you want a cited answer in seconds.Developers experimenting across models. Apps that want fallback logic.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Run Llama, Mistral, Qwen, etc. on your laptop
  • Simple CLI + API
  • Hardware-aware (picks the right quant)
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Needs beefy laptop for larger models
  • Speed way behind cloud APIs
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Slight markup over direct API
  • Some provider features not exposed
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for local inference. If you care about privacy or want to tinker, install this today.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for model-shopping. I use this for every prototype before committing.
LinkOpen →Open →Open →Open →