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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
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Replicate
S
Fathom
S
Figma AI
A
Sudowrite
S
TaglineRun any open-source AI model with an API call.Meeting notes, free forever for individuals.AI features baked into the design tool you already use.AI writing tool built specifically for fiction writers.
CategoryDev PlatformMeetingsDesignWriting
PricingPay per second of computeFree for individuals + $15-$29/user/mo teamsIncluded with Figma plans$19-$59/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Solo operators, freelancers, small teams on a budget.Designers already on Figma.Novelists, screenwriters, fiction short-form writers.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
  • Brainstorm, expand, rewrite modes designed for fiction
  • Story Bible for character + plot tracking
  • Understands voice + tone better than generic chatbots
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Bot-joining model
  • Team features gated
  • Features vary by plan + region
  • Still rolling out
  • Pricey for casual use
  • Fiction-only focus — not for business writing
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for solo + free. The best free option, hands down.A-tier. No reason not to use it if you're on Figma. Not worth switching for.S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.
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