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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
Audio
Research
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Chatbots
Image
Meetings
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Productivity
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Data
Marketing
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Runway
S
Flux (Black Forest Labs)
A
Elicit
S
TaglineThe pro's AI video tool. Gen-4 is the current bar.Open weights + strong photorealism. The open-source answer.AI research assistant for academic literature.
CategoryVideoImageResearch
PricingFree + $15-$95/moAPI + open weights (Schnell is Apache 2.0)Free + $12-$42/mo
Best forMarketing video, pitch decks, b-roll, creative shorts.Developers + power users who want control and privacy.Grad students, researchers, anyone doing literature reviews.
Strengths
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
Weaknesses
  • Expensive at scale
  • Still needs post-editing
  • Harder to use than hosted tools
  • Needs infra
  • Academic-only
  • Can hallucinate citations — verify everything
Kai's verdictS-tier. Market leader with reason. Start here for serious video.A-tier. S-tier if you self-host. The reason open-source image gen matters.S-tier for academic research. Nothing else comes close for systematic reviews.
LinkOpen →Open →Open →