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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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Sora
A
Suno
S
Elicit
S
Perplexity
S
TaglineOpenAI's video model. Long clips, cinematic quality.Prompt to full song with vocals, instruments, the works.AI research assistant for academic literature.AI search done right. Cited answers, not chat theater.
CategoryVideoAudioResearchResearch
PricingIncluded with ChatGPT Plus/ProFree + $10/mo + $30/moFree + $12-$42/moFree + $20/mo Pro
Best forChatGPT subscribers experimenting with cinematic shots.Jingles, intros, demos, sketches, personal use.Grad students, researchers, anyone doing literature reviews.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Real songs with real lyrics
  • v4 is very good
  • Quick turnaround
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Copyright gray zone
  • Audio quality behind studio
  • Academic-only
  • Can hallucinate citations — verify everything
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictA-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier in its category. The first AI music tool I'd actually listen to.S-tier for academic research. Nothing else comes close for systematic reviews.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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