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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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Windsurf
A
Stable Audio
A
Gemini
A
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.Stability AI's open audio model. Loops + SFX + background.Google's answer. Best integrated with Workspace + free for a lot.
Categorycodingaudiochat
PricingFree + $15/mo ProFree + $12/mo Pro + enterpriseFree + $20/mo Advanced (bundled with 2TB Drive)
Best forDevelopers who want Cursor-like power for less money.Game developers, podcasters needing SFX, video creators needing background music.Anyone already on Google, research tasks, summarizing long documents.
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
Weaknesses
  • Smaller community
  • Model selection more limited
  • Not for full songs with vocals
  • Shorter generation limits
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.A-tier for its niche. Different use case than Suno — SFX and loops, not songs.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.
LinkOpen →Open →Open →