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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
DALL-E 3
B
Replit Agent
A
Perplexity
S
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.OpenAI's image model. Built into ChatGPT Plus.Replit's AI that builds + deploys full apps on their platform.AI search done right. Cited answers, not chat theater.
Categorycodingimagecodingresearch
PricingFree (limited) + $10/mo Pro + $19/mo BusinessIncluded with ChatGPT Plus $20/mo$10-$25/mo Core/TeamsFree + $20/mo Pro
Best forTeams with GitHub already. Devs who don't want to change IDEs.ChatGPT Plus users who want images without paying extra.Teachers, students, prototypers, hackathon builders.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Full-stack + DB + auth + deploy in one environment
  • Great for teaching/learning
  • Runs everything in-browser
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Locked into Replit hosting
  • Less code quality than dedicated IDEs
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.A-tier. Best for teaching a kid to code in 2026.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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