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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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Dev Platform
Agents
Voice
Video
Audio
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Coding
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Image
Meetings
Design
Productivity
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Data
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Replicate
S
Sudowrite
S
Hex
A
Figma AI
A
TaglineRun any open-source AI model with an API call.AI writing tool built specifically for fiction writers.Modern data notebook with Magic AI assistant.AI features baked into the design tool you already use.
CategoryDev PlatformWritingDataDesign
PricingPay per second of compute$19-$59/moFree + $28+/user/moIncluded with Figma plans
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Novelists, screenwriters, fiction short-form writers.Data teams at startups + enterprises.Designers already on Figma.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Brainstorm, expand, rewrite modes designed for fiction
  • Story Bible for character + plot tracking
  • Understands voice + tone better than generic chatbots
  • SQL + Python + no-code in one notebook
  • Magic AI writes queries + viz for you
  • Team-grade collaboration
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Pricey for casual use
  • Fiction-only focus — not for business writing
  • Overkill for casual users
  • Enterprise pricing
  • Features vary by plan + region
  • Still rolling out
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.A-tier for data teams. S-tier if you already live in SQL + Python.A-tier. No reason not to use it if you're on Figma. Not worth switching for.
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