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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
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
DALL-E 3
B
Sora
A
Hume AI
A
Elicit
S
TaglineOpenAI's image model. Built into ChatGPT Plus.OpenAI's video model. Long clips, cinematic quality.Voice AI that reads + expresses emotion.AI research assistant for academic literature.
CategoryImageVideoVoiceResearch
PricingIncluded with ChatGPT Plus $20/moIncluded with ChatGPT Plus/ProFree tier + pay-as-you-goFree + $12-$42/mo
Best forChatGPT Plus users who want images without paying extra.ChatGPT subscribers experimenting with cinematic shots.Therapy apps, customer service, any voice agent where emotion matters.Grad students, researchers, anyone doing literature reviews.
Strengths
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
Weaknesses
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Niche use case
  • Pricing ramps fast
  • Academic-only
  • Can hallucinate citations — verify everything
Kai's verdictB-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.A-tier in its niche. The only one that actually gets emotion right.S-tier for academic research. Nothing else comes close for systematic reviews.
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