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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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Video
Audio
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Meetings
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Hume AI
A
Google Veo
A
DALL-E 3
B
Replicate
S
TaglineVoice AI that reads + expresses emotion.Google's video model. Baked into Gemini + YouTube Shorts.OpenAI's image model. Built into ChatGPT Plus.Run any open-source AI model with an API call.
CategoryVoiceVideoImageDev Platform
PricingFree tier + pay-as-you-goIncluded with Gemini Advanced $20/mo + YouTube creator toolsIncluded with ChatGPT Plus $20/moPay per second of compute
Best forTherapy apps, customer service, any voice agent where emotion matters.Gemini Advanced users, YouTube Shorts creators.ChatGPT Plus users who want images without paying extra.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt understanding
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Niche use case
  • Pricing ramps fast
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictA-tier in its niche. The only one that actually gets emotion right.A-tier if you already pay Gemini. B-tier standalone.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.S-tier for open-source model APIs. The default in this space.
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