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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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Stable Audio
A
Claude
S
Rows
A
Manus
S
TaglineStability AI's open audio model. Loops + SFX + background.Anthropic's flagship — best reasoning + longest useful context.Spreadsheets with AI + live integrations baked in.Autonomous AI agent that actually finishes tasks.
CategoryAudioChatbotsDataAgents
PricingFree + $12/mo Pro + enterpriseFree + $20/mo Pro + team/enterpriseFree + $19-$89/user/moFree tier + $39-$199/mo
Best forGame developers, podcasters needing SFX, video creators needing background music.Long writing, code, careful thinking, documents over 50 pages.Ops teams, marketers, anyone building dashboards from multiple sources.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
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • 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
  • Image generation is weak
  • No native web search on all tiers
  • Not a full Excel replacement for heavy users
  • Integrations best on paid 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.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier in the agent category. The first one I'd give to a non-technical friend.
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