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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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Replit Agent
A
Devin
A
Le Chat (Mistral)
B
Rows
A
TaglineReplit's AI that builds + deploys full apps on their platform.Cognition Labs' autonomous coding engineer.French alternative. Fast, European, privacy-focused.Spreadsheets with AI + live integrations baked in.
CategoryCodingAgentsChatbotsData
Pricing$10-$25/mo Core/Teams$500/moFree + $15/mo ProFree + $19-$89/user/mo
Best forTeachers, students, prototypers, hackathon builders.Engineering teams offloading tickets. Ops/platform work.European users with data residency needs. Fans of open-weight models.Ops teams, marketers, anyone building dashboards from multiple sources.
Strengths
  • Full-stack + DB + auth + deploy in one environment
  • Great for teaching/learning
  • Runs everything in-browser
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • European data residency
  • Very fast responses
  • Open-weight Mistral models available
  • Good French/European languages
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
Weaknesses
  • Locked into Replit hosting
  • Less code quality than dedicated IDEs
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Smaller capability gap vs frontier models
  • Less polished UX
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
Kai's verdictA-tier. Best for teaching a kid to code in 2026.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.B-tier overall, A-tier if GDPR/data residency matters. Solid backup option.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.
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