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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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Hume AI
A
Adobe Firefly
A
Gemini
A
Perplexity
S
TaglineVoice AI that reads + expresses emotion.Commercially safe image gen, deeply integrated with Photoshop.Google's answer. Best integrated with Workspace + free for a lot.AI search done right. Cited answers, not chat theater.
CategoryVoiceImageChatbotsResearch
PricingFree tier + pay-as-you-goFree + included with Creative CloudFree + $20/mo Advanced (bundled with 2TB Drive)Free + $20/mo Pro
Best forTherapy apps, customer service, any voice agent where emotion matters.Anyone in Creative Cloud. Brands that need copyright clarity.Anyone already on Google, research tasks, summarizing long documents.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
  • Trained on licensed content — commercially safe
  • Generative Fill in Photoshop is incredible
  • Native to Adobe ecosystem
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Niche use case
  • Pricing ramps fast
  • Aesthetic ceiling below Midjourney
  • Tied to Adobe subscription
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictA-tier in its niche. The only one that actually gets emotion right.S-tier inside Photoshop (Generative Fill). B-tier standalone.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.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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