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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
Sora
A
Elicit
S
Gemini
A
TaglineReplit's AI that builds + deploys full apps on their platform.OpenAI's video model. Long clips, cinematic quality.AI research assistant for academic literature.Google's answer. Best integrated with Workspace + free for a lot.
CategoryCodingVideoResearchChatbots
Pricing$10-$25/mo Core/TeamsIncluded with ChatGPT Plus/ProFree + $12-$42/moFree + $20/mo Advanced (bundled with 2TB Drive)
Best forTeachers, students, prototypers, hackathon builders.ChatGPT subscribers experimenting with cinematic shots.Grad students, researchers, anyone doing literature reviews.Anyone already on Google, research tasks, summarizing long documents.
Strengths
  • Full-stack + DB + auth + deploy in one environment
  • Great for teaching/learning
  • Runs everything in-browser
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
Weaknesses
  • Locked into Replit hosting
  • Less code quality than dedicated IDEs
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Academic-only
  • Can hallucinate citations — verify everything
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
Kai's verdictA-tier. Best for teaching a kid to code in 2026.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier for academic research. Nothing else comes close for systematic reviews.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.
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