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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
Stable Audio
A
Rows
A
Claude
S
Manus
S
TaglineStability AI's open audio model. Loops + SFX + background.Spreadsheets with AI + live integrations baked in.Anthropic's flagship — best reasoning + longest useful context.Autonomous AI agent that actually finishes tasks.
CategoryAudioDataChatbotsAgents
PricingFree + $12/mo Pro + enterpriseFree + $19-$89/user/moFree + $20/mo Pro + team/enterpriseFree tier + $39-$199/mo
Best forGame developers, podcasters needing SFX, video creators needing background music.Ops teams, marketers, anyone building dashboards from multiple sources.Long writing, code, careful thinking, documents over 50 pages.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.
Strengths
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
Weaknesses
  • Not for full songs with vocals
  • Shorter generation limits
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Image generation is weak
  • No native web search on all tiers
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
Kai's verdictA-tier for its niche. Different use case than Suno — SFX and loops, not songs.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.S-tier in the agent category. The first one I'd give to a non-technical friend.
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