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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
Gemini
A
Hume AI
A
HeyGen
S
TaglineOpenAI's video model. Long clips, cinematic quality.Google's answer. Best integrated with Workspace + free for a lot.Voice AI that reads + expresses emotion.AI avatar videos. Record once, speak any language.
CategoryVideoChatbotsVoiceVideo
PricingIncluded with ChatGPT Plus/ProFree + $20/mo Advanced (bundled with 2TB Drive)Free tier + pay-as-you-goFree + $24-$65/mo
Best forChatGPT subscribers experimenting with cinematic shots.Anyone already on Google, research tasks, summarizing long documents.Therapy apps, customer service, any voice agent where emotion matters.Course creators, multilingual marketers, anyone scaling video content.
Strengths
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
Weaknesses
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Niche use case
  • Pricing ramps fast
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
Kai's verdictA-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.A-tier in its niche. The only one that actually gets emotion right.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.
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