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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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Dev Platform
Agents
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Video
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Research
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Image
Meetings
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Marketing
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Replit Agent
A
Flux (Black Forest Labs)
A
Google Veo
A
Gamma
A
TaglineReplit's AI that builds + deploys full apps on their platform.Open weights + strong photorealism. The open-source answer.Google's video model. Baked into Gemini + YouTube Shorts.AI slide decks that don't look AI-generated.
CategoryCodingImageVideoProductivity
Pricing$10-$25/mo Core/TeamsAPI + open weights (Schnell is Apache 2.0)Included with Gemini Advanced $20/mo + YouTube creator toolsFree + $10-$20/mo
Best forTeachers, students, prototypers, hackathon builders.Developers + power users who want control and privacy.Gemini Advanced users, YouTube Shorts creators.Pitch decks, proposals, internal presentations — fast.
Strengths
  • Full-stack + DB + auth + deploy in one environment
  • Great for teaching/learning
  • Runs everything in-browser
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt understanding
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
Weaknesses
  • Locked into Replit hosting
  • Less code quality than dedicated IDEs
  • Harder to use than hosted tools
  • Needs infra
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
  • Locked into Gamma's format
  • Export quality varies
Kai's verdictA-tier. Best for teaching a kid to code in 2026.A-tier. S-tier if you self-host. The reason open-source image gen matters.A-tier if you already pay Gemini. B-tier standalone.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.
LinkOpen →Open →Open →Open →