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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
Runway
S
Genspark
A
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.The pro's AI video tool. Gen-4 is the current bar.AI agent for deep search. Generates Sparkpages — full mini-reports.
Categorycodingvideoresearch
PricingFree + $15/mo ProFree + $15-$95/moFree + $25/mo Plus
Best forDevelopers who want Cursor-like power for less money.Marketing video, pitch decks, b-roll, creative shorts.Travel planning, shopping comparisons, deep research where you want an artifact back.
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
  • Sparkpages = curated multi-source mini-articles
  • Agent can book, compare, shop
  • Autopilot agent for long tasks
Weaknesses
  • Smaller community
  • Model selection more limited
  • Expensive at scale
  • Still needs post-editing
  • Early-stage — rough edges
  • Less reliable than Perplexity for simple questions
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.S-tier. Market leader with reason. Start here for serious video.A-tier. Bet on this one — the Sparkpage format is genuinely new.
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