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Devin
A
Rows
A
Sudowrite
S
Groq
S
TaglineCognition Labs' autonomous coding engineer.Spreadsheets with AI + live integrations baked in.AI writing tool built specifically for fiction writers.The fastest AI inference in the world. Crazy low latency.
CategoryAgentsDataWritingDev Platform
Pricing$500/moFree + $19-$89/user/mo$19-$59/moFree tier + pay-as-you-go API
Best forEngineering teams offloading tickets. Ops/platform work.Ops teams, marketers, anyone building dashboards from multiple sources.Novelists, screenwriters, fiction short-form writers.Developers who need sub-100ms LLM responses.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Brainstorm, expand, rewrite modes designed for fiction
  • Story Bible for character + plot tracking
  • Understands voice + tone better than generic chatbots
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Pricey for casual use
  • Fiction-only focus — not for business writing
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.S-tier for speed. When latency is the product, start here.
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