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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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Claude Code
S
Gemini
A
Devin
A
Hume AI
A
TaglineAnthropic's CLI agent. Opus-powered, operates on your repo directly.Google's answer. Best integrated with Workspace + free for a lot.Cognition Labs' autonomous coding engineer.Voice AI that reads + expresses emotion.
CategoryCodingChatbotsAgentsVoice
PricingPart of Claude Pro/Max/Team plansFree + $20/mo Advanced (bundled with 2TB Drive)$500/moFree tier + pay-as-you-go
Best forDevelopers who want an agent, not autocomplete. Large refactors, tests, docs.Anyone already on Google, research tasks, summarizing long documents.Engineering teams offloading tickets. Ops/platform work.Therapy apps, customer service, any voice agent where emotion matters.
Strengths
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
Weaknesses
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Niche use case
  • Pricing ramps fast
Kai's verdictS-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier in its niche. The only one that actually gets emotion right.
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