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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
Galileo AI
B
Cartesia
S
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.Prompt to UI design. Figma-ready outputs.Ultra-low-latency voice. Built for realtime agents.
Categorycodingdesignvoice
PricingFree + $15/mo ProFree trial + paid plansFree tier + usage-based API
Best forDevelopers who want Cursor-like power for less money.Designers brainstorming first drafts.Developers building voice agents, phone bots, interactive apps.
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Prompt-to-UI with real layouts
  • Exports to Figma
  • Faster than hand-designing from scratch
  • < 90ms latency — the fastest in the market
  • Sonic model sounds natural
  • Developer-friendly API
Weaknesses
  • Smaller community
  • Model selection more limited
  • Output needs designer polish
  • Pricing unclear / changes often
  • Fewer voices than ElevenLabs
  • Less consumer-facing brand
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.B-tier. Useful for first drafts. v0 is the better bet for shipping code.S-tier for realtime. If latency matters more than voice catalog, start here.
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