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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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Chatbots
Research
Coding
Image
Video
Voice
Meetings
Design
Productivity
Audio
Writing
Agents
Dev Platform
Data
Marketing
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Hume AI
A
GitHub Copilot
B
Replicate
S
Figma AI
A
TaglineVoice AI that reads + expresses emotion.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Run any open-source AI model with an API call.AI features baked into the design tool you already use.
CategoryVoiceCodingDev PlatformDesign
PricingFree tier + pay-as-you-goFree (limited) + $10/mo Pro + $19/mo BusinessPay per second of computeIncluded with Figma plans
Best forTherapy apps, customer service, any voice agent where emotion matters.Teams with GitHub already. Devs who don't want to change IDEs.Developers using open-source models (Flux, SDXL, Whisper, etc).Designers already on Figma.
Strengths
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
Weaknesses
  • Niche use case
  • Pricing ramps fast
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Features vary by plan + region
  • Still rolling out
Kai's verdictA-tier in its niche. The only one that actually gets emotion right.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for open-source model APIs. The default in this space.A-tier. No reason not to use it if you're on Figma. Not worth switching for.
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