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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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DeepSeek
S
Sora
A
Elicit
S
ChatGPT Operator
B
TaglineChinese open-weight powerhouse. Crazy cheap, genuinely smart.OpenAI's video model. Long clips, cinematic quality.AI research assistant for academic literature.OpenAI's browser agent. Clicks and types on websites for you.
CategoryChatbotsVideoResearchAgents
PricingFree web + ultra-cheap API (~$0.14/M input tokens)Included with ChatGPT Plus/ProFree + $12-$42/moIncluded with ChatGPT Pro $200/mo
Best forDevelopers + cost-conscious builders. Anyone fine with self-hosting.ChatGPT subscribers experimenting with cinematic shots.Grad students, researchers, anyone doing literature reviews.Power users willing to pay $200/mo for a browser bot.
Strengths
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • 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
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
Weaknesses
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Academic-only
  • Can hallucinate citations — verify everything
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
Kai's verdictS-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.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.B-tier. Still early. Manus is more flexible for less money.
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