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Elicit
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Kling
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TaglineRun any open-source AI model with an API call.AI research assistant for academic literature.Google Docs with an AI collaborator baked in.Kuaishou's video model. The surprise standout.
CategoryDev PlatformResearchWritingVideo
PricingPay per second of computeFree + $12-$42/moFree + $12/moCredit-based, free trial
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Grad students, researchers, anyone doing literature reviews.Essays, long-form drafts, thinking on the page.Anyone who wants top-tier video quality for less.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Academic-only
  • Can hallucinate citations — verify everything
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • UX is rough for English speakers
  • Queue times
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for academic research. Nothing else comes close for systematic reviews.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.
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