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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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Chatbots
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DeepSeek
S
Luma Dream Machine
A
Rows
A
Perplexity
S
TaglineChinese open-weight powerhouse. Crazy cheap, genuinely smart.Smooth, cinematic motion. Image-to-video specialist.Spreadsheets with AI + live integrations baked in.AI search done right. Cited answers, not chat theater.
CategoryChatbotsVideoDataResearch
PricingFree web + ultra-cheap API (~$0.14/M input tokens)Free + $10-$500/moFree + $19-$89/user/moFree + $20/mo Pro
Best forDevelopers + cost-conscious builders. Anyone fine with self-hosting.Photographers animating stills, cinematic b-roll.Ops teams, marketers, anyone building dashboards from multiple sources.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Best image-to-video in the category
  • Great camera motion control
  • Ray 2 model produces striking shots
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Prompt fidelity below Runway
  • Queue times on free tier
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.A-tier. Best for cinematic image-to-video. Pair with Runway for coverage.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.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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